1 /*
2 * Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "jni.h"
27 #include "jvm.h"
28 #include "classfile/javaClasses.inline.hpp"
29 #include "classfile/systemDictionary.hpp"
30 #include "classfile/vmSymbols.hpp"
31 #include "memory/allocation.inline.hpp"
32 #include "memory/guardedMemory.hpp"
33 #include "oops/instanceKlass.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/symbol.hpp"
36 #include "prims/jniCheck.hpp"
37 #include "prims/jvm_misc.hpp"
38 #include "runtime/fieldDescriptor.hpp"
39 #include "runtime/handles.hpp"
40 #include "runtime/interfaceSupport.hpp"
41 #include "runtime/jfieldIDWorkaround.hpp"
42 #include "runtime/jniHandles.inline.hpp"
43 #include "runtime/thread.inline.hpp"
44
45 // Complain every extra number of unplanned local refs
46 #define CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD 32
47
48 // Heap objects are allowed to be directly referenced only in VM code,
49 // not in native code.
50
51 #define ASSERT_OOPS_ALLOWED \
52 assert(JavaThread::current()->thread_state() == _thread_in_vm, \
53 "jniCheck examining oops in bad state.")
54
55
56 // Execute the given block of source code with the thread in VM state.
57 // To do this, transition from the NATIVE state to the VM state, execute
58 // the code, and transtition back. The ThreadInVMfromNative constructor
59 // performs the transition to VM state, its destructor restores the
60 // NATIVE state.
61
62 #define IN_VM(source_code) { \
63 { \
64 ThreadInVMfromNative __tiv(thr); \
65 source_code \
66 } \
67 }
68
69
70 /*
71 * DECLARATIONS
72 */
73
74 static struct JNINativeInterface_ * unchecked_jni_NativeInterface;
75
76
77 /*
78 * MACRO DEFINITIONS
79 */
80
81 // All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the
82 // QUICK_ENTRY or LEAF variants found in jni.cpp. This allows handles
83 // to be created if a fatal error should occur.
84
85 // Check for thread not attached to VM; need to catch this before
86 // assertions in the wrapper routines might fire
87
88 // Check for env being the one value appropriate for this thread.
89
90 #define JNI_ENTRY_CHECKED(result_type, header) \
91 extern "C" { \
92 result_type JNICALL header { \
93 JavaThread* thr = (JavaThread*) Thread::current_or_null(); \
94 if (thr == NULL || !thr->is_Java_thread()) { \
95 tty->print_cr("%s", fatal_using_jnienv_in_nonjava); \
96 os::abort(true); \
97 } \
98 JNIEnv* xenv = thr->jni_environment(); \
99 if (env != xenv) { \
100 NativeReportJNIFatalError(thr, warn_wrong_jnienv); \
101 } \
102 VM_ENTRY_BASE(result_type, header, thr)
103
104
105 #define UNCHECKED() (unchecked_jni_NativeInterface)
106
107 static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread";
108 static const char * warn_bad_class_descriptor1 = "JNI FindClass received a bad class descriptor \"";
109 static const char * warn_bad_class_descriptor2 = "\". A correct class descriptor " \
110 "has no leading \"L\" or trailing \";\". Incorrect descriptors will not be accepted in future releases.";
111 static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread";
112 static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \
113 "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical";
114 static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI";
115 static const char * fatal_received_null_class = "JNI received a null class";
116 static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class";
117 static const char * fatal_class_not_a_throwable_class = "JNI Throw or ThrowNew received a class argument that is not a Throwable or Throwable subclass";
118 static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call";
119 static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call";
120 static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations";
121 static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation";
122 static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation";
123 static const char * fatal_non_array = "Non-array passed to JNI array operations";
124 static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI";
125 static const char * fatal_should_be_static = "Non-static field ID passed to JNI";
126 static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI";
127 static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations";
128 static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations";
129 static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI";
130 static const char * fatal_null_object = "Null object passed to JNI";
131 static const char * fatal_wrong_field = "Wrong field ID passed to JNI";
132 static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations";
133 static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations";
134 static const char * fatal_non_string = "JNI string operation received a non-string";
135
136
137 // When in VM state:
138 static void ReportJNIWarning(JavaThread* thr, const char *msg) {
139 tty->print_cr("WARNING in native method: %s", msg);
140 thr->print_stack();
141 }
142
143 // When in NATIVE state:
144 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) {
145 IN_VM(
146 ReportJNIFatalError(thr, msg);
147 )
148 }
149
150 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {
151 IN_VM(
152 ReportJNIWarning(thr, msg);
153 )
154 }
155
156
157
158
159 /*
160 * SUPPORT FUNCTIONS
161 */
162
163 /**
164 * Check whether or not a programmer has actually checked for exceptions. According
165 * to the JNI Specification ("jni/spec/design.html#java_exceptions"):
166 *
167 * There are two cases where the programmer needs to check for exceptions without
168 * being able to first check an error code:
169 *
170 * - The JNI functions that invoke a Java method return the result of the Java method.
171 * The programmer must call ExceptionOccurred() to check for possible exceptions
172 * that occurred during the execution of the Java method.
173 *
174 * - Some of the JNI array access functions do not return an error code, but may
175 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException.
176 *
177 * In all other cases, a non-error return value guarantees that no exceptions have been thrown.
178 *
179 * Programmers often defend against ArrayIndexOutOfBoundsException, so warning
180 * for these functions would be pedantic.
181 */
182 static inline void
183 check_pending_exception(JavaThread* thr) {
184 if (thr->has_pending_exception()) {
185 NativeReportJNIWarning(thr, "JNI call made with exception pending");
186 }
187 if (thr->is_pending_jni_exception_check()) {
188 IN_VM(
189 tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s",
190 thr->get_pending_jni_exception_check());
191 thr->print_stack();
192 )
193 thr->clear_pending_jni_exception_check(); // Just complain once
194 }
195 }
196
197 /**
198 * Add to the planned number of handles. I.e. plus current live & warning threshold
199 */
200 static inline void
201 add_planned_handle_capacity(JNIHandleBlock* handles, size_t capacity) {
202 handles->set_planned_capacity(capacity +
203 handles->get_number_of_live_handles() +
204 CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD);
205 }
206
207
208 static inline void
209 functionEnterCritical(JavaThread* thr)
210 {
211 check_pending_exception(thr);
212 }
213
214 static inline void
215 functionEnterCriticalExceptionAllowed(JavaThread* thr)
216 {
217 }
218
219 static inline void
220 functionEnter(JavaThread* thr)
221 {
222 if (thr->in_critical()) {
223 tty->print_cr("%s", warn_other_function_in_critical);
224 }
225 check_pending_exception(thr);
226 }
227
228 static inline void
229 functionEnterExceptionAllowed(JavaThread* thr)
230 {
231 if (thr->in_critical()) {
232 tty->print_cr("%s", warn_other_function_in_critical);
233 }
234 }
235
236 static inline void
237 functionExit(JavaThread* thr)
238 {
239 JNIHandleBlock* handles = thr->active_handles();
240 size_t planned_capacity = handles->get_planned_capacity();
241 size_t live_handles = handles->get_number_of_live_handles();
242 if (live_handles > planned_capacity) {
243 IN_VM(
244 tty->print_cr("WARNING: JNI local refs: " SIZE_FORMAT ", exceeds capacity: " SIZE_FORMAT,
245 live_handles, planned_capacity);
246 thr->print_stack();
247 )
248 // Complain just the once, reset to current + warn threshold
249 add_planned_handle_capacity(handles, 0);
250 }
251 }
252
253 static inline void
254 checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)
255 {
256 fieldDescriptor fd;
257
258 /* make sure it is a static field */
259 if (!jfieldIDWorkaround::is_static_jfieldID(fid))
260 ReportJNIFatalError(thr, fatal_should_be_static);
261
262 /* validate the class being passed */
263 ASSERT_OOPS_ALLOWED;
264 Klass* k_oop = jniCheck::validate_class(thr, cls, false);
265
266 /* check for proper subclass hierarchy */
267 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);
268 Klass* f_oop = id->holder();
269 if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop))
270 ReportJNIFatalError(thr, fatal_wrong_static_field);
271
272 /* check for proper field type */
273 if (!id->find_local_field(&fd))
274 ReportJNIFatalError(thr, fatal_static_field_not_found);
275 if ((fd.field_type() != ftype) &&
276 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {
277 ReportJNIFatalError(thr, fatal_static_field_mismatch);
278 }
279 }
280
281 static inline void
282 checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype)
283 {
284 fieldDescriptor fd;
285
286 /* make sure it is an instance field */
287 if (jfieldIDWorkaround::is_static_jfieldID(fid))
288 ReportJNIFatalError(thr, fatal_should_be_nonstatic);
289
290 /* validate the object being passed and then get its class */
291 ASSERT_OOPS_ALLOWED;
292 oop oopObj = jniCheck::validate_object(thr, obj);
293 if (oopObj == NULL) {
294 ReportJNIFatalError(thr, fatal_null_object);
295 }
296 Klass* k_oop = oopObj->klass();
297
298 if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) {
299 ReportJNIFatalError(thr, fatal_wrong_field);
300 }
301
302 /* make sure the field exists */
303 int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid);
304 if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset))
305 ReportJNIFatalError(thr, fatal_wrong_field);
306
307 /* check for proper field type */
308 if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset,
309 false, &fd))
310 ReportJNIFatalError(thr, fatal_instance_field_not_found);
311
312 if ((fd.field_type() != ftype) &&
313 !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {
314 ReportJNIFatalError(thr, fatal_instance_field_mismatch);
315 }
316 }
317
318 static inline void
319 checkString(JavaThread* thr, jstring js)
320 {
321 ASSERT_OOPS_ALLOWED;
322 oop s = jniCheck::validate_object(thr, js);
323 if ((s == NULL) || !java_lang_String::is_instance(s))
324 ReportJNIFatalError(thr, fatal_non_string);
325 }
326
327 static inline arrayOop
328 check_is_array(JavaThread* thr, jarray jArray)
329 {
330 ASSERT_OOPS_ALLOWED;
331 arrayOop aOop;
332
333 aOop = (arrayOop)jniCheck::validate_object(thr, jArray);
334 if (aOop == NULL || !aOop->is_array()) {
335 ReportJNIFatalError(thr, fatal_non_array);
336 }
337 return aOop;
338 }
339
340 static inline arrayOop
341 check_is_primitive_array(JavaThread* thr, jarray jArray) {
342 arrayOop aOop = check_is_array(thr, jArray);
343
344 if (!aOop->is_typeArray()) {
345 ReportJNIFatalError(thr, fatal_prim_type_array_expected);
346 }
347 return aOop;
348 }
349
350 static inline void
351 check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType)
352 {
353 BasicType array_type;
354 arrayOop aOop;
355
356 aOop = check_is_primitive_array(thr, jArray);
357 array_type = TypeArrayKlass::cast(aOop->klass())->element_type();
358 if (array_type != elementType) {
359 ReportJNIFatalError(thr, fatal_element_type_mismatch);
360 }
361 }
362
363 static inline void
364 check_is_obj_array(JavaThread* thr, jarray jArray) {
365 arrayOop aOop = check_is_array(thr, jArray);
366 if (!aOop->is_objArray()) {
367 ReportJNIFatalError(thr, fatal_object_array_expected);
368 }
369 }
370
371 /*
372 * Copy and wrap array elements for bounds checking.
373 * Remember the original elements (GuardedMemory::get_tag())
374 */
375 static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array,
376 void* orig_elements) {
377 void* result;
378 IN_VM(
379 oop a = JNIHandles::resolve_non_null(array);
380 size_t len = arrayOop(a)->length() <<
381 TypeArrayKlass::cast(a->klass())->log2_element_size();
382 result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements);
383 )
384 return result;
385 }
386
387 static void* check_wrapped_array(JavaThread* thr, const char* fn_name,
388 void* obj, void* carray, size_t* rsz) {
389 if (carray == NULL) {
390 tty->print_cr("%s: elements vector NULL" PTR_FORMAT, fn_name, p2i(obj));
391 NativeReportJNIFatalError(thr, "Elements vector NULL");
392 }
393 GuardedMemory guarded(carray);
394 void* orig_result = guarded.get_tag();
395 if (!guarded.verify_guards()) {
396 tty->print_cr("ReleasePrimitiveArrayCritical: release array failed bounds "
397 "check, incorrect pointer returned ? array: " PTR_FORMAT " carray: "
398 PTR_FORMAT, p2i(obj), p2i(carray));
399 guarded.print_on(tty);
400 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
401 "failed bounds check");
402 }
403 if (orig_result == NULL) {
404 tty->print_cr("ReleasePrimitiveArrayCritical: unrecognized elements. array: "
405 PTR_FORMAT " carray: " PTR_FORMAT, p2i(obj), p2i(carray));
406 guarded.print_on(tty);
407 NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
408 "unrecognized elements");
409 }
410 if (rsz != NULL) {
411 *rsz = guarded.get_user_size();
412 }
413 return orig_result;
414 }
415
416 static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name,
417 void* obj, void* carray, jint mode) {
418 size_t sz;
419 void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz);
420 switch (mode) {
421 case 0:
422 memcpy(orig_result, carray, sz);
423 GuardedMemory::free_copy(carray);
424 break;
425 case JNI_COMMIT:
426 memcpy(orig_result, carray, sz);
427 break;
428 case JNI_ABORT:
429 GuardedMemory::free_copy(carray);
430 break;
431 default:
432 tty->print_cr("%s: Unrecognized mode %i releasing array "
433 PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray));
434 NativeReportJNIFatalError(thr, "Unrecognized array release mode");
435 }
436 return orig_result;
437 }
438
439 oop jniCheck::validate_handle(JavaThread* thr, jobject obj) {
440 if ((obj != NULL) && (JNIHandles::handle_type(thr, obj) != JNIInvalidRefType)) {
441 ASSERT_OOPS_ALLOWED;
442 return JNIHandles::resolve_external_guard(obj);
443 }
444 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
445 return NULL;
446 }
447
448
449 Method* jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) {
450 ASSERT_OOPS_ALLOWED;
451 // do the fast jmethodID check first
452 Method* moop = Method::checked_resolve_jmethod_id(method_id);
453 if (moop == NULL) {
454 ReportJNIFatalError(thr, fatal_wrong_class_or_method);
455 }
456 // jmethodIDs are supposed to be weak handles in the class loader data,
457 // but that can be expensive so check it last
458 else if (!Method::is_method_id(method_id)) {
459 ReportJNIFatalError(thr, fatal_non_weak_method);
460 }
461 return moop;
462 }
463
464
465 oop jniCheck::validate_object(JavaThread* thr, jobject obj) {
466 if (obj == NULL) return NULL;
467 ASSERT_OOPS_ALLOWED;
468 oop oopObj = jniCheck::validate_handle(thr, obj);
469 if (oopObj == NULL) {
470 ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
471 }
472 return oopObj;
473 }
474
475 // Warn if a class descriptor is in decorated form; class descriptors
476 // passed to JNI findClass should not be decorated unless they are
477 // array descriptors.
478 void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) {
479 if (name == NULL) return; // implementation accepts NULL so just return
480
481 size_t len = strlen(name);
482
483 if (len >= 2 &&
484 name[0] == JVM_SIGNATURE_CLASS && // 'L'
485 name[len-1] == JVM_SIGNATURE_ENDCLASS ) { // ';'
486 char msg[JVM_MAXPATHLEN];
487 jio_snprintf(msg, JVM_MAXPATHLEN, "%s%s%s",
488 warn_bad_class_descriptor1, name, warn_bad_class_descriptor2);
489 ReportJNIWarning(thr, msg);
490 }
491 }
492
493 Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) {
494 ASSERT_OOPS_ALLOWED;
495 oop mirror = jniCheck::validate_handle(thr, clazz);
496 if (mirror == NULL) {
497 ReportJNIFatalError(thr, fatal_received_null_class);
498 }
499
500 if (mirror->klass() != SystemDictionary::Class_klass()) {
501 ReportJNIFatalError(thr, fatal_class_not_a_class);
502 }
503
504 Klass* k = java_lang_Class::as_Klass(mirror);
505 // Make allowances for primitive classes ...
506 if (!(k != NULL || (allow_primitive && java_lang_Class::is_primitive(mirror)))) {
507 ReportJNIFatalError(thr, fatal_class_not_a_class);
508 }
509 return k;
510 }
511
512 void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) {
513 ASSERT_OOPS_ALLOWED;
514 assert(klass != NULL, "klass argument must have a value");
515
516 if (!klass->is_instance_klass() ||
517 !InstanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) {
518 ReportJNIFatalError(thr, fatal_class_not_a_throwable_class);
519 }
520 }
521
522 void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) {
523 /* validate the object being passed */
524 ASSERT_OOPS_ALLOWED;
525 jniCheck::validate_jmethod_id(thr, method_id);
526 jniCheck::validate_object(thr, obj);
527 }
528
529 void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) {
530 /* validate the class being passed */
531 ASSERT_OOPS_ALLOWED;
532 jniCheck::validate_jmethod_id(thr, method_id);
533 jniCheck::validate_class(thr, clazz, false);
534 }
535
536
537 /*
538 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE
539 */
540
541 JNI_ENTRY_CHECKED(jclass,
542 checked_jni_DefineClass(JNIEnv *env,
543 const char *name,
544 jobject loader,
545 const jbyte *buf,
546 jsize len))
547 functionEnter(thr);
548 IN_VM(
549 jniCheck::validate_object(thr, loader);
550 )
551 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);
552 functionExit(thr);
553 return result;
554 JNI_END
555
556 JNI_ENTRY_CHECKED(jclass,
557 checked_jni_FindClass(JNIEnv *env,
558 const char *name))
559 functionEnter(thr);
560 IN_VM(
561 jniCheck::validate_class_descriptor(thr, name);
562 )
563 jclass result = UNCHECKED()->FindClass(env, name);
564 functionExit(thr);
565 return result;
566 JNI_END
567
568 JNI_ENTRY_CHECKED(jmethodID,
569 checked_jni_FromReflectedMethod(JNIEnv *env,
570 jobject method))
571 functionEnter(thr);
572 IN_VM(
573 jniCheck::validate_object(thr, method);
574 )
575 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);
576 functionExit(thr);
577 return result;
578 JNI_END
579
580 JNI_ENTRY_CHECKED(jfieldID,
581 checked_jni_FromReflectedField(JNIEnv *env,
582 jobject field))
583 functionEnter(thr);
584 IN_VM(
585 jniCheck::validate_object(thr, field);
586 )
587 jfieldID result = UNCHECKED()->FromReflectedField(env, field);
588 functionExit(thr);
589 return result;
590 JNI_END
591
592 JNI_ENTRY_CHECKED(jobject,
593 checked_jni_ToReflectedMethod(JNIEnv *env,
594 jclass cls,
595 jmethodID methodID,
596 jboolean isStatic))
597 functionEnter(thr);
598 IN_VM(
599 jniCheck::validate_class(thr, cls, false);
600 jniCheck::validate_jmethod_id(thr, methodID);
601 )
602 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,
603 isStatic);
604 functionExit(thr);
605 return result;
606 JNI_END
607
608 JNI_ENTRY_CHECKED(jclass,
609 checked_jni_GetSuperclass(JNIEnv *env,
610 jclass sub))
611 functionEnter(thr);
612 IN_VM(
613 jniCheck::validate_class(thr, sub, true);
614 )
615 jclass result = UNCHECKED()->GetSuperclass(env, sub);
616 functionExit(thr);
617 return result;
618 JNI_END
619
620 JNI_ENTRY_CHECKED(jboolean,
621 checked_jni_IsAssignableFrom(JNIEnv *env,
622 jclass sub,
623 jclass sup))
624 functionEnter(thr);
625 IN_VM(
626 jniCheck::validate_class(thr, sub, true);
627 jniCheck::validate_class(thr, sup, true);
628 )
629 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);
630 functionExit(thr);
631 return result;
632 JNI_END
633
634 JNI_ENTRY_CHECKED(jobject,
635 checked_jni_ToReflectedField(JNIEnv *env,
636 jclass cls,
637 jfieldID fieldID,
638 jboolean isStatic))
639 functionEnter(thr);
640 IN_VM(
641 jniCheck::validate_class(thr, cls, false);
642 )
643 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,
644 isStatic);
645 functionExit(thr);
646 return result;
647 JNI_END
648
649 JNI_ENTRY_CHECKED(jint,
650 checked_jni_Throw(JNIEnv *env,
651 jthrowable obj))
652 functionEnter(thr);
653 IN_VM(
654 oop oopObj = jniCheck::validate_object(thr, obj);
655 if (oopObj == NULL) {
656 // Unchecked Throw tolerates a NULL obj, so just warn
657 ReportJNIWarning(thr, "JNI Throw called with NULL throwable");
658 } else {
659 jniCheck::validate_throwable_klass(thr, oopObj->klass());
660 }
661 )
662 jint result = UNCHECKED()->Throw(env, obj);
663 functionExit(thr);
664 return result;
665 JNI_END
666
667 JNI_ENTRY_CHECKED(jint,
668 checked_jni_ThrowNew(JNIEnv *env,
669 jclass clazz,
670 const char *msg))
671 functionEnter(thr);
672 IN_VM(
673 Klass* k = jniCheck::validate_class(thr, clazz, false);
674 assert(k != NULL, "validate_class shouldn't return NULL Klass*");
675 jniCheck::validate_throwable_klass(thr, k);
676 )
677 jint result = UNCHECKED()->ThrowNew(env, clazz, msg);
678 functionExit(thr);
679 return result;
680 JNI_END
681
682 JNI_ENTRY_CHECKED(jthrowable,
683 checked_jni_ExceptionOccurred(JNIEnv *env))
684 thr->clear_pending_jni_exception_check();
685 functionEnterExceptionAllowed(thr);
686 jthrowable result = UNCHECKED()->ExceptionOccurred(env);
687 functionExit(thr);
688 return result;
689 JNI_END
690
691 JNI_ENTRY_CHECKED(void,
692 checked_jni_ExceptionDescribe(JNIEnv *env))
693 functionEnterExceptionAllowed(thr);
694 UNCHECKED()->ExceptionDescribe(env);
695 functionExit(thr);
696 JNI_END
697
698 JNI_ENTRY_CHECKED(void,
699 checked_jni_ExceptionClear(JNIEnv *env))
700 thr->clear_pending_jni_exception_check();
701 functionEnterExceptionAllowed(thr);
702 UNCHECKED()->ExceptionClear(env);
703 functionExit(thr);
704 JNI_END
705
706 JNI_ENTRY_CHECKED(void,
707 checked_jni_FatalError(JNIEnv *env,
708 const char *msg))
709 thr->clear_pending_jni_exception_check();
710 functionEnter(thr);
711 UNCHECKED()->FatalError(env, msg);
712 functionExit(thr);
713 JNI_END
714
715 JNI_ENTRY_CHECKED(jint,
716 checked_jni_PushLocalFrame(JNIEnv *env,
717 jint capacity))
718 functionEnterExceptionAllowed(thr);
719 if (capacity < 0)
720 NativeReportJNIFatalError(thr, "negative capacity");
721 jint result = UNCHECKED()->PushLocalFrame(env, capacity);
722 if (result == JNI_OK) {
723 add_planned_handle_capacity(thr->active_handles(), capacity);
724 }
725 functionExit(thr);
726 return result;
727 JNI_END
728
729 JNI_ENTRY_CHECKED(jobject,
730 checked_jni_PopLocalFrame(JNIEnv *env,
731 jobject result))
732 functionEnterExceptionAllowed(thr);
733 jobject res = UNCHECKED()->PopLocalFrame(env, result);
734 functionExit(thr);
735 return res;
736 JNI_END
737
738 JNI_ENTRY_CHECKED(jobject,
739 checked_jni_NewGlobalRef(JNIEnv *env,
740 jobject lobj))
741 functionEnter(thr);
742 IN_VM(
743 if (lobj != NULL) {
744 jniCheck::validate_handle(thr, lobj);
745 }
746 )
747 jobject result = UNCHECKED()->NewGlobalRef(env,lobj);
748 functionExit(thr);
749 return result;
750 JNI_END
751
752 JNI_ENTRY_CHECKED(void,
753 checked_jni_DeleteGlobalRef(JNIEnv *env,
754 jobject gref))
755 functionEnterExceptionAllowed(thr);
756 IN_VM(
757 jniCheck::validate_object(thr, gref);
758 if (gref && !JNIHandles::is_global_handle(gref)) {
759 ReportJNIFatalError(thr,
760 "Invalid global JNI handle passed to DeleteGlobalRef");
761 }
762 )
763 UNCHECKED()->DeleteGlobalRef(env,gref);
764 functionExit(thr);
765 JNI_END
766
767 JNI_ENTRY_CHECKED(void,
768 checked_jni_DeleteLocalRef(JNIEnv *env,
769 jobject obj))
770 functionEnterExceptionAllowed(thr);
771 IN_VM(
772 jniCheck::validate_object(thr, obj);
773 if (obj && !(JNIHandles::is_local_handle(thr, obj) ||
774 JNIHandles::is_frame_handle(thr, obj)))
775 ReportJNIFatalError(thr,
776 "Invalid local JNI handle passed to DeleteLocalRef");
777 )
778 UNCHECKED()->DeleteLocalRef(env, obj);
779 functionExit(thr);
780 JNI_END
781
782 JNI_ENTRY_CHECKED(jboolean,
783 checked_jni_IsSameObject(JNIEnv *env,
784 jobject obj1,
785 jobject obj2))
786 functionEnterExceptionAllowed(thr);
787 IN_VM(
788 /* This JNI function can be used to compare weak global references
789 * to NULL objects. If the handles are valid, but contain NULL,
790 * then don't attempt to validate the object.
791 */
792 if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) {
793 jniCheck::validate_object(thr, obj1);
794 }
795 if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) {
796 jniCheck::validate_object(thr, obj2);
797 }
798 )
799 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);
800 functionExit(thr);
801 return result;
802 JNI_END
803
804 JNI_ENTRY_CHECKED(jobject,
805 checked_jni_NewLocalRef(JNIEnv *env,
806 jobject ref))
807 functionEnter(thr);
808 IN_VM(
809 if (ref != NULL) {
810 jniCheck::validate_handle(thr, ref);
811 }
812 )
813 jobject result = UNCHECKED()->NewLocalRef(env, ref);
814 functionExit(thr);
815 return result;
816 JNI_END
817
818 JNI_ENTRY_CHECKED(jint,
819 checked_jni_EnsureLocalCapacity(JNIEnv *env,
820 jint capacity))
821 functionEnter(thr);
822 if (capacity < 0) {
823 NativeReportJNIFatalError(thr, "negative capacity");
824 }
825 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
826 if (result == JNI_OK) {
827 // increase local ref capacity if needed
828 if ((size_t)capacity > thr->active_handles()->get_planned_capacity()) {
829 add_planned_handle_capacity(thr->active_handles(), capacity);
830 }
831 }
832 functionExit(thr);
833 return result;
834 JNI_END
835
836 JNI_ENTRY_CHECKED(jobject,
837 checked_jni_AllocObject(JNIEnv *env,
838 jclass clazz))
839 functionEnter(thr);
840 IN_VM(
841 jniCheck::validate_class(thr, clazz, false);
842 )
843 jobject result = UNCHECKED()->AllocObject(env,clazz);
844 functionExit(thr);
845 return result;
846 JNI_END
847
848 JNI_ENTRY_CHECKED(jobject,
849 checked_jni_NewObject(JNIEnv *env,
850 jclass clazz,
851 jmethodID methodID,
852 ...))
853 functionEnter(thr);
854 va_list args;
855 IN_VM(
856 jniCheck::validate_class(thr, clazz, false);
857 jniCheck::validate_jmethod_id(thr, methodID);
858 )
859 va_start(args, methodID);
860 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
861 va_end(args);
862 functionExit(thr);
863 return result;
864 JNI_END
865
866 JNI_ENTRY_CHECKED(jobject,
867 checked_jni_NewObjectV(JNIEnv *env,
868 jclass clazz,
869 jmethodID methodID,
870 va_list args))
871 functionEnter(thr);
872 IN_VM(
873 jniCheck::validate_class(thr, clazz, false);
874 jniCheck::validate_jmethod_id(thr, methodID);
875 )
876 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
877 functionExit(thr);
878 return result;
879 JNI_END
880
881 JNI_ENTRY_CHECKED(jobject,
882 checked_jni_NewObjectA(JNIEnv *env,
883 jclass clazz,
884 jmethodID methodID,
885 const jvalue *args))
886 functionEnter(thr);
887 IN_VM(
888 jniCheck::validate_class(thr, clazz, false);
889 jniCheck::validate_jmethod_id(thr, methodID);
890 )
891 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);
892 functionExit(thr);
893 return result;
894 JNI_END
895
896 JNI_ENTRY_CHECKED(jclass,
897 checked_jni_GetObjectClass(JNIEnv *env,
898 jobject obj))
899 functionEnter(thr);
900 IN_VM(
901 jniCheck::validate_object(thr, obj);
902 )
903 jclass result = UNCHECKED()->GetObjectClass(env,obj);
904 functionExit(thr);
905 return result;
906 JNI_END
907
908 JNI_ENTRY_CHECKED(jboolean,
909 checked_jni_IsInstanceOf(JNIEnv *env,
910 jobject obj,
911 jclass clazz))
912 functionEnter(thr);
913 IN_VM(
914 jniCheck::validate_object(thr, obj);
915 jniCheck::validate_class(thr, clazz, true);
916 )
917 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);
918 functionExit(thr);
919 return result;
920 JNI_END
921
922 JNI_ENTRY_CHECKED(jmethodID,
923 checked_jni_GetMethodID(JNIEnv *env,
924 jclass clazz,
925 const char *name,
926 const char *sig))
927 functionEnter(thr);
928 IN_VM(
929 jniCheck::validate_class(thr, clazz, false);
930 )
931 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);
932 functionExit(thr);
933 return result;
934 JNI_END
935
936 #define WRAPPER_CallMethod(ResultType, Result) \
937 JNI_ENTRY_CHECKED(ResultType, \
938 checked_jni_Call##Result##Method(JNIEnv *env, \
939 jobject obj, \
940 jmethodID methodID, \
941 ...)) \
942 functionEnter(thr); \
943 va_list args; \
944 IN_VM( \
945 jniCheck::validate_call_object(thr, obj, methodID); \
946 ) \
947 va_start(args,methodID); \
948 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \
949 args); \
950 va_end(args); \
951 thr->set_pending_jni_exception_check("Call"#Result"Method"); \
952 functionExit(thr); \
953 return result; \
954 JNI_END \
955 \
956 JNI_ENTRY_CHECKED(ResultType, \
957 checked_jni_Call##Result##MethodV(JNIEnv *env, \
958 jobject obj, \
959 jmethodID methodID, \
960 va_list args)) \
961 functionEnter(thr); \
962 IN_VM(\
963 jniCheck::validate_call_object(thr, obj, methodID); \
964 ) \
965 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\
966 args); \
967 thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \
968 functionExit(thr); \
969 return result; \
970 JNI_END \
971 \
972 JNI_ENTRY_CHECKED(ResultType, \
973 checked_jni_Call##Result##MethodA(JNIEnv *env, \
974 jobject obj, \
975 jmethodID methodID, \
976 const jvalue * args)) \
977 functionEnter(thr); \
978 IN_VM( \
979 jniCheck::validate_call_object(thr, obj, methodID); \
980 ) \
981 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\
982 args); \
983 thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \
984 functionExit(thr); \
985 return result; \
986 JNI_END
987
988 WRAPPER_CallMethod(jobject,Object)
989 WRAPPER_CallMethod(jboolean,Boolean)
990 WRAPPER_CallMethod(jbyte,Byte)
991 WRAPPER_CallMethod(jshort,Short)
992 WRAPPER_CallMethod(jchar,Char)
993 WRAPPER_CallMethod(jint,Int)
994 WRAPPER_CallMethod(jlong,Long)
995 WRAPPER_CallMethod(jfloat,Float)
996 WRAPPER_CallMethod(jdouble,Double)
997
998 JNI_ENTRY_CHECKED(void,
999 checked_jni_CallVoidMethod(JNIEnv *env, \
1000 jobject obj, \
1001 jmethodID methodID, \
1002 ...))
1003 functionEnter(thr);
1004 va_list args;
1005 IN_VM(
1006 jniCheck::validate_call_object(thr, obj, methodID);
1007 )
1008 va_start(args,methodID);
1009 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1010 va_end(args);
1011 thr->set_pending_jni_exception_check("CallVoidMethod");
1012 functionExit(thr);
1013 JNI_END
1014
1015 JNI_ENTRY_CHECKED(void,
1016 checked_jni_CallVoidMethodV(JNIEnv *env,
1017 jobject obj,
1018 jmethodID methodID,
1019 va_list args))
1020 functionEnter(thr);
1021 IN_VM(
1022 jniCheck::validate_call_object(thr, obj, methodID);
1023 )
1024 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1025 thr->set_pending_jni_exception_check("CallVoidMethodV");
1026 functionExit(thr);
1027 JNI_END
1028
1029 JNI_ENTRY_CHECKED(void,
1030 checked_jni_CallVoidMethodA(JNIEnv *env,
1031 jobject obj,
1032 jmethodID methodID,
1033 const jvalue * args))
1034 functionEnter(thr);
1035 IN_VM(
1036 jniCheck::validate_call_object(thr, obj, methodID);
1037 )
1038 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);
1039 thr->set_pending_jni_exception_check("CallVoidMethodA");
1040 functionExit(thr);
1041 JNI_END
1042
1043 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \
1044 JNI_ENTRY_CHECKED(ResultType, \
1045 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \
1046 jobject obj, \
1047 jclass clazz, \
1048 jmethodID methodID, \
1049 ...)) \
1050 functionEnter(thr); \
1051 va_list args; \
1052 IN_VM( \
1053 jniCheck::validate_call_object(thr, obj, methodID); \
1054 jniCheck::validate_call_class(thr, clazz, methodID); \
1055 ) \
1056 va_start(args,methodID); \
1057 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1058 obj, \
1059 clazz, \
1060 methodID,\
1061 args); \
1062 va_end(args); \
1063 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \
1064 functionExit(thr); \
1065 return result; \
1066 JNI_END \
1067 \
1068 JNI_ENTRY_CHECKED(ResultType, \
1069 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \
1070 jobject obj, \
1071 jclass clazz, \
1072 jmethodID methodID, \
1073 va_list args)) \
1074 functionEnter(thr); \
1075 IN_VM( \
1076 jniCheck::validate_call_object(thr, obj, methodID); \
1077 jniCheck::validate_call_class(thr, clazz, methodID); \
1078 ) \
1079 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1080 obj, \
1081 clazz, \
1082 methodID,\
1083 args); \
1084 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \
1085 functionExit(thr); \
1086 return result; \
1087 JNI_END \
1088 \
1089 JNI_ENTRY_CHECKED(ResultType, \
1090 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \
1091 jobject obj, \
1092 jclass clazz, \
1093 jmethodID methodID, \
1094 const jvalue * args)) \
1095 functionEnter(thr); \
1096 IN_VM( \
1097 jniCheck::validate_call_object(thr, obj, methodID); \
1098 jniCheck::validate_call_class(thr, clazz, methodID); \
1099 ) \
1100 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \
1101 obj, \
1102 clazz, \
1103 methodID,\
1104 args); \
1105 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \
1106 functionExit(thr); \
1107 return result; \
1108 JNI_END
1109
1110 WRAPPER_CallNonvirtualMethod(jobject,Object)
1111 WRAPPER_CallNonvirtualMethod(jboolean,Boolean)
1112 WRAPPER_CallNonvirtualMethod(jbyte,Byte)
1113 WRAPPER_CallNonvirtualMethod(jshort,Short)
1114 WRAPPER_CallNonvirtualMethod(jchar,Char)
1115 WRAPPER_CallNonvirtualMethod(jint,Int)
1116 WRAPPER_CallNonvirtualMethod(jlong,Long)
1117 WRAPPER_CallNonvirtualMethod(jfloat,Float)
1118 WRAPPER_CallNonvirtualMethod(jdouble,Double)
1119
1120 JNI_ENTRY_CHECKED(void,
1121 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,
1122 jobject obj,
1123 jclass clazz,
1124 jmethodID methodID,
1125 ...))
1126 functionEnter(thr);
1127 va_list args;
1128 IN_VM(
1129 jniCheck::validate_call_object(thr, obj, methodID);
1130 jniCheck::validate_call_class(thr, clazz, methodID);
1131 )
1132 va_start(args,methodID);
1133 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1134 va_end(args);
1135 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod");
1136 functionExit(thr);
1137 JNI_END
1138
1139 JNI_ENTRY_CHECKED(void,
1140 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,
1141 jobject obj,
1142 jclass clazz,
1143 jmethodID methodID,
1144 va_list args))
1145 functionEnter(thr);
1146 IN_VM(
1147 jniCheck::validate_call_object(thr, obj, methodID);
1148 jniCheck::validate_call_class(thr, clazz, methodID);
1149 )
1150 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1151 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV");
1152 functionExit(thr);
1153 JNI_END
1154
1155 JNI_ENTRY_CHECKED(void,
1156 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,
1157 jobject obj,
1158 jclass clazz,
1159 jmethodID methodID,
1160 const jvalue * args))
1161 functionEnter(thr);
1162 IN_VM(
1163 jniCheck::validate_call_object(thr, obj, methodID);
1164 jniCheck::validate_call_class(thr, clazz, methodID);
1165 )
1166 UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);
1167 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA");
1168 functionExit(thr);
1169 JNI_END
1170
1171 JNI_ENTRY_CHECKED(jfieldID,
1172 checked_jni_GetFieldID(JNIEnv *env,
1173 jclass clazz,
1174 const char *name,
1175 const char *sig))
1176 functionEnter(thr);
1177 IN_VM(
1178 jniCheck::validate_class(thr, clazz, false);
1179 )
1180 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);
1181 functionExit(thr);
1182 return result;
1183 JNI_END
1184
1185 #define WRAPPER_GetField(ReturnType,Result,FieldType) \
1186 JNI_ENTRY_CHECKED(ReturnType, \
1187 checked_jni_Get##Result##Field(JNIEnv *env, \
1188 jobject obj, \
1189 jfieldID fieldID)) \
1190 functionEnter(thr); \
1191 IN_VM( \
1192 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1193 ) \
1194 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \
1195 functionExit(thr); \
1196 return result; \
1197 JNI_END
1198
1199 WRAPPER_GetField(jobject, Object, T_OBJECT)
1200 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)
1201 WRAPPER_GetField(jbyte, Byte, T_BYTE)
1202 WRAPPER_GetField(jshort, Short, T_SHORT)
1203 WRAPPER_GetField(jchar, Char, T_CHAR)
1204 WRAPPER_GetField(jint, Int, T_INT)
1205 WRAPPER_GetField(jlong, Long, T_LONG)
1206 WRAPPER_GetField(jfloat, Float, T_FLOAT)
1207 WRAPPER_GetField(jdouble, Double, T_DOUBLE)
1208
1209 #define WRAPPER_SetField(ValueType,Result,FieldType) \
1210 JNI_ENTRY_CHECKED(void, \
1211 checked_jni_Set##Result##Field(JNIEnv *env, \
1212 jobject obj, \
1213 jfieldID fieldID, \
1214 ValueType val)) \
1215 functionEnter(thr); \
1216 IN_VM( \
1217 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1218 ) \
1219 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \
1220 functionExit(thr); \
1221 JNI_END
1222
1223 WRAPPER_SetField(jobject, Object, T_OBJECT)
1224 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)
1225 WRAPPER_SetField(jbyte, Byte, T_BYTE)
1226 WRAPPER_SetField(jshort, Short, T_SHORT)
1227 WRAPPER_SetField(jchar, Char, T_CHAR)
1228 WRAPPER_SetField(jint, Int, T_INT)
1229 WRAPPER_SetField(jlong, Long, T_LONG)
1230 WRAPPER_SetField(jfloat, Float, T_FLOAT)
1231 WRAPPER_SetField(jdouble, Double, T_DOUBLE)
1232
1233
1234 JNI_ENTRY_CHECKED(jmethodID,
1235 checked_jni_GetStaticMethodID(JNIEnv *env,
1236 jclass clazz,
1237 const char *name,
1238 const char *sig))
1239 functionEnter(thr);
1240 IN_VM(
1241 jniCheck::validate_class(thr, clazz, false);
1242 )
1243 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);
1244 functionExit(thr);
1245 return result;
1246 JNI_END
1247
1248 #define WRAPPER_CallStaticMethod(ReturnType,Result) \
1249 JNI_ENTRY_CHECKED(ReturnType, \
1250 checked_jni_CallStatic##Result##Method(JNIEnv *env, \
1251 jclass clazz, \
1252 jmethodID methodID, \
1253 ...)) \
1254 functionEnter(thr); \
1255 va_list args; \
1256 IN_VM( \
1257 jniCheck::validate_jmethod_id(thr, methodID); \
1258 jniCheck::validate_class(thr, clazz, false); \
1259 ) \
1260 va_start(args,methodID); \
1261 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1262 clazz, \
1263 methodID, \
1264 args); \
1265 va_end(args); \
1266 thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \
1267 functionExit(thr); \
1268 return result; \
1269 JNI_END \
1270 \
1271 JNI_ENTRY_CHECKED(ReturnType, \
1272 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \
1273 jclass clazz, \
1274 jmethodID methodID,\
1275 va_list args)) \
1276 functionEnter(thr); \
1277 IN_VM( \
1278 jniCheck::validate_jmethod_id(thr, methodID); \
1279 jniCheck::validate_class(thr, clazz, false); \
1280 ) \
1281 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1282 clazz, \
1283 methodID, \
1284 args); \
1285 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \
1286 functionExit(thr); \
1287 return result; \
1288 JNI_END \
1289 \
1290 JNI_ENTRY_CHECKED(ReturnType, \
1291 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \
1292 jclass clazz, \
1293 jmethodID methodID, \
1294 const jvalue *args)) \
1295 functionEnter(thr); \
1296 IN_VM( \
1297 jniCheck::validate_jmethod_id(thr, methodID); \
1298 jniCheck::validate_class(thr, clazz, false); \
1299 ) \
1300 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \
1301 clazz, \
1302 methodID, \
1303 args); \
1304 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \
1305 functionExit(thr); \
1306 return result; \
1307 JNI_END
1308
1309 WRAPPER_CallStaticMethod(jobject,Object)
1310 WRAPPER_CallStaticMethod(jboolean,Boolean)
1311 WRAPPER_CallStaticMethod(jbyte,Byte)
1312 WRAPPER_CallStaticMethod(jshort,Short)
1313 WRAPPER_CallStaticMethod(jchar,Char)
1314 WRAPPER_CallStaticMethod(jint,Int)
1315 WRAPPER_CallStaticMethod(jlong,Long)
1316 WRAPPER_CallStaticMethod(jfloat,Float)
1317 WRAPPER_CallStaticMethod(jdouble,Double)
1318
1319 JNI_ENTRY_CHECKED(void,
1320 checked_jni_CallStaticVoidMethod(JNIEnv *env,
1321 jclass cls,
1322 jmethodID methodID,
1323 ...))
1324 functionEnter(thr);
1325 va_list args;
1326 IN_VM(
1327 jniCheck::validate_jmethod_id(thr, methodID);
1328 jniCheck::validate_class(thr, cls, false);
1329 )
1330 va_start(args,methodID);
1331 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1332 va_end(args);
1333 thr->set_pending_jni_exception_check("CallStaticVoidMethod");
1334 functionExit(thr);
1335 JNI_END
1336
1337 JNI_ENTRY_CHECKED(void,
1338 checked_jni_CallStaticVoidMethodV(JNIEnv *env,
1339 jclass cls,
1340 jmethodID methodID,
1341 va_list args))
1342 functionEnter(thr);
1343 IN_VM(
1344 jniCheck::validate_jmethod_id(thr, methodID);
1345 jniCheck::validate_class(thr, cls, false);
1346 )
1347 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1348 thr->set_pending_jni_exception_check("CallStaticVoidMethodV");
1349 functionExit(thr);
1350 JNI_END
1351
1352 JNI_ENTRY_CHECKED(void,
1353 checked_jni_CallStaticVoidMethodA(JNIEnv *env,
1354 jclass cls,
1355 jmethodID methodID,
1356 const jvalue * args))
1357 functionEnter(thr);
1358 IN_VM(
1359 jniCheck::validate_jmethod_id(thr, methodID);
1360 jniCheck::validate_class(thr, cls, false);
1361 )
1362 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);
1363 thr->set_pending_jni_exception_check("CallStaticVoidMethodA");
1364 functionExit(thr);
1365 JNI_END
1366
1367 JNI_ENTRY_CHECKED(jfieldID,
1368 checked_jni_GetStaticFieldID(JNIEnv *env,
1369 jclass clazz,
1370 const char *name,
1371 const char *sig))
1372 functionEnter(thr);
1373 IN_VM(
1374 jniCheck::validate_class(thr, clazz, false);
1375 )
1376 jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig);
1377 functionExit(thr);
1378 return result;
1379 JNI_END
1380
1381 #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \
1382 JNI_ENTRY_CHECKED(ReturnType, \
1383 checked_jni_GetStatic##Result##Field(JNIEnv *env, \
1384 jclass clazz, \
1385 jfieldID fieldID)) \
1386 functionEnter(thr); \
1387 IN_VM( \
1388 jniCheck::validate_class(thr, clazz, false); \
1389 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1390 ) \
1391 ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \
1392 clazz, \
1393 fieldID); \
1394 functionExit(thr); \
1395 return result; \
1396 JNI_END
1397
1398 WRAPPER_GetStaticField(jobject, Object, T_OBJECT)
1399 WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN)
1400 WRAPPER_GetStaticField(jbyte, Byte, T_BYTE)
1401 WRAPPER_GetStaticField(jshort, Short, T_SHORT)
1402 WRAPPER_GetStaticField(jchar, Char, T_CHAR)
1403 WRAPPER_GetStaticField(jint, Int, T_INT)
1404 WRAPPER_GetStaticField(jlong, Long, T_LONG)
1405 WRAPPER_GetStaticField(jfloat, Float, T_FLOAT)
1406 WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE)
1407
1408 #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \
1409 JNI_ENTRY_CHECKED(void, \
1410 checked_jni_SetStatic##Result##Field(JNIEnv *env, \
1411 jclass clazz, \
1412 jfieldID fieldID, \
1413 ValueType value)) \
1414 functionEnter(thr); \
1415 IN_VM( \
1416 jniCheck::validate_class(thr, clazz, false); \
1417 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1418 ) \
1419 UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \
1420 functionExit(thr); \
1421 JNI_END
1422
1423 WRAPPER_SetStaticField(jobject, Object, T_OBJECT)
1424 WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN)
1425 WRAPPER_SetStaticField(jbyte, Byte, T_BYTE)
1426 WRAPPER_SetStaticField(jshort, Short, T_SHORT)
1427 WRAPPER_SetStaticField(jchar, Char, T_CHAR)
1428 WRAPPER_SetStaticField(jint, Int, T_INT)
1429 WRAPPER_SetStaticField(jlong, Long, T_LONG)
1430 WRAPPER_SetStaticField(jfloat, Float, T_FLOAT)
1431 WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE)
1432
1433
1434 JNI_ENTRY_CHECKED(jstring,
1435 checked_jni_NewString(JNIEnv *env,
1436 const jchar *unicode,
1437 jsize len))
1438 functionEnter(thr);
1439 jstring result = UNCHECKED()->NewString(env,unicode,len);
1440 functionExit(thr);
1441 return result;
1442 JNI_END
1443
1444 JNI_ENTRY_CHECKED(jsize,
1445 checked_jni_GetStringLength(JNIEnv *env,
1446 jstring str))
1447 functionEnter(thr);
1448 IN_VM(
1449 checkString(thr, str);
1450 )
1451 jsize result = UNCHECKED()->GetStringLength(env,str);
1452 functionExit(thr);
1453 return result;
1454 JNI_END
1455
1456 // Arbitrary (but well-known) tag
1457 const void* STRING_TAG = (void*)0x47114711;
1458
1459 JNI_ENTRY_CHECKED(const jchar *,
1460 checked_jni_GetStringChars(JNIEnv *env,
1461 jstring str,
1462 jboolean *isCopy))
1463 functionEnter(thr);
1464 IN_VM(
1465 checkString(thr, str);
1466 )
1467 jchar* new_result = NULL;
1468 const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy);
1469 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected");
1470 if (result != NULL) {
1471 size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination
1472 len *= sizeof(jchar);
1473 new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG);
1474 if (new_result == NULL) {
1475 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars");
1476 }
1477 // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes
1478 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1479 FreeHeap((char*)result);
1480 }
1481 functionExit(thr);
1482 return new_result;
1483 JNI_END
1484
1485 JNI_ENTRY_CHECKED(void,
1486 checked_jni_ReleaseStringChars(JNIEnv *env,
1487 jstring str,
1488 const jchar *chars))
1489 functionEnterExceptionAllowed(thr);
1490 IN_VM(
1491 checkString(thr, str);
1492 )
1493 if (chars == NULL) {
1494 // still do the unchecked call to allow dtrace probes
1495 UNCHECKED()->ReleaseStringChars(env,str,chars);
1496 }
1497 else {
1498 GuardedMemory guarded((void*)chars);
1499 if (!guarded.verify_guards()) {
1500 tty->print_cr("ReleaseStringChars: release chars failed bounds check. "
1501 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1502 guarded.print_on(tty);
1503 NativeReportJNIFatalError(thr, "ReleaseStringChars: "
1504 "release chars failed bounds check.");
1505 }
1506 if (guarded.get_tag() != STRING_TAG) {
1507 tty->print_cr("ReleaseStringChars: called on something not allocated "
1508 "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT,
1509 p2i(str), p2i(chars));
1510 NativeReportJNIFatalError(thr, "ReleaseStringChars called on something "
1511 "not allocated by GetStringChars");
1512 }
1513 UNCHECKED()->ReleaseStringChars(env, str,
1514 (const jchar*) guarded.release_for_freeing());
1515 }
1516 functionExit(thr);
1517 JNI_END
1518
1519 JNI_ENTRY_CHECKED(jstring,
1520 checked_jni_NewStringUTF(JNIEnv *env,
1521 const char *utf))
1522 functionEnter(thr);
1523 jstring result = UNCHECKED()->NewStringUTF(env,utf);
1524 functionExit(thr);
1525 return result;
1526 JNI_END
1527
1528 JNI_ENTRY_CHECKED(jsize,
1529 checked_jni_GetStringUTFLength(JNIEnv *env,
1530 jstring str))
1531 functionEnter(thr);
1532 IN_VM(
1533 checkString(thr, str);
1534 )
1535 jsize result = UNCHECKED()->GetStringUTFLength(env,str);
1536 functionExit(thr);
1537 return result;
1538 JNI_END
1539
1540 // Arbitrary (but well-known) tag - different than GetStringChars
1541 const void* STRING_UTF_TAG = (void*) 0x48124812;
1542
1543 JNI_ENTRY_CHECKED(const char *,
1544 checked_jni_GetStringUTFChars(JNIEnv *env,
1545 jstring str,
1546 jboolean *isCopy))
1547 functionEnter(thr);
1548 IN_VM(
1549 checkString(thr, str);
1550 )
1551 char* new_result = NULL;
1552 const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy);
1553 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected");
1554 if (result != NULL) {
1555 size_t len = strlen(result) + 1; // + 1 for NULL termination
1556 new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG);
1557 if (new_result == NULL) {
1558 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars");
1559 }
1560 // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes
1561 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1562 FreeHeap((char*)result);
1563 }
1564 functionExit(thr);
1565 return new_result;
1566 JNI_END
1567
1568 JNI_ENTRY_CHECKED(void,
1569 checked_jni_ReleaseStringUTFChars(JNIEnv *env,
1570 jstring str,
1571 const char* chars))
1572 functionEnterExceptionAllowed(thr);
1573 IN_VM(
1574 checkString(thr, str);
1575 )
1576 if (chars == NULL) {
1577 // still do the unchecked call to allow dtrace probes
1578 UNCHECKED()->ReleaseStringUTFChars(env,str,chars);
1579 }
1580 else {
1581 GuardedMemory guarded((void*)chars);
1582 if (!guarded.verify_guards()) {
1583 tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. "
1584 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1585 guarded.print_on(tty);
1586 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: "
1587 "release chars failed bounds check.");
1588 }
1589 if (guarded.get_tag() != STRING_UTF_TAG) {
1590 tty->print_cr("ReleaseStringUTFChars: called on something not "
1591 "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: "
1592 PTR_FORMAT, p2i(str), p2i(chars));
1593 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars "
1594 "called on something not allocated by GetStringUTFChars");
1595 }
1596 UNCHECKED()->ReleaseStringUTFChars(env, str,
1597 (const char*) guarded.release_for_freeing());
1598 }
1599 functionExit(thr);
1600 JNI_END
1601
1602 JNI_ENTRY_CHECKED(jsize,
1603 checked_jni_GetArrayLength(JNIEnv *env,
1604 jarray array))
1605 functionEnter(thr);
1606 IN_VM(
1607 check_is_array(thr, array);
1608 )
1609 jsize result = UNCHECKED()->GetArrayLength(env,array);
1610 functionExit(thr);
1611 return result;
1612 JNI_END
1613
1614 JNI_ENTRY_CHECKED(jobjectArray,
1615 checked_jni_NewObjectArray(JNIEnv *env,
1616 jsize len,
1617 jclass clazz,
1618 jobject init))
1619 functionEnter(thr);
1620 jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init);
1621 functionExit(thr);
1622 return result;
1623 JNI_END
1624
1625 JNI_ENTRY_CHECKED(jobject,
1626 checked_jni_GetObjectArrayElement(JNIEnv *env,
1627 jobjectArray array,
1628 jsize index))
1629 functionEnter(thr);
1630 IN_VM(
1631 check_is_obj_array(thr, array);
1632 )
1633 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);
1634 functionExit(thr);
1635 return result;
1636 JNI_END
1637
1638 JNI_ENTRY_CHECKED(void,
1639 checked_jni_SetObjectArrayElement(JNIEnv *env,
1640 jobjectArray array,
1641 jsize index,
1642 jobject val))
1643 functionEnter(thr);
1644 IN_VM(
1645 check_is_obj_array(thr, array);
1646 )
1647 UNCHECKED()->SetObjectArrayElement(env,array,index,val);
1648 functionExit(thr);
1649 JNI_END
1650
1651 #define WRAPPER_NewScalarArray(Return, Result) \
1652 JNI_ENTRY_CHECKED(Return, \
1653 checked_jni_New##Result##Array(JNIEnv *env, \
1654 jsize len)) \
1655 functionEnter(thr); \
1656 Return result = UNCHECKED()->New##Result##Array(env,len); \
1657 functionExit(thr); \
1658 return (Return) result; \
1659 JNI_END
1660
1661 WRAPPER_NewScalarArray(jbooleanArray, Boolean)
1662 WRAPPER_NewScalarArray(jbyteArray, Byte)
1663 WRAPPER_NewScalarArray(jshortArray, Short)
1664 WRAPPER_NewScalarArray(jcharArray, Char)
1665 WRAPPER_NewScalarArray(jintArray, Int)
1666 WRAPPER_NewScalarArray(jlongArray, Long)
1667 WRAPPER_NewScalarArray(jfloatArray, Float)
1668 WRAPPER_NewScalarArray(jdoubleArray, Double)
1669
1670 #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \
1671 JNI_ENTRY_CHECKED(ElementType *, \
1672 checked_jni_Get##Result##ArrayElements(JNIEnv *env, \
1673 ElementType##Array array, \
1674 jboolean *isCopy)) \
1675 functionEnter(thr); \
1676 IN_VM( \
1677 check_primitive_array_type(thr, array, ElementTag); \
1678 ) \
1679 ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \
1680 array, \
1681 isCopy); \
1682 if (result != NULL) { \
1683 result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \
1684 } \
1685 functionExit(thr); \
1686 return result; \
1687 JNI_END
1688
1689 WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean)
1690 WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte)
1691 WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short)
1692 WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char)
1693 WRAPPER_GetScalarArrayElements(T_INT, jint, Int)
1694 WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long)
1695 WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float)
1696 WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double)
1697
1698 #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \
1699 JNI_ENTRY_CHECKED(void, \
1700 checked_jni_Release##Result##ArrayElements(JNIEnv *env, \
1701 ElementType##Array array, \
1702 ElementType *elems, \
1703 jint mode)) \
1704 functionEnterExceptionAllowed(thr); \
1705 IN_VM( \
1706 check_primitive_array_type(thr, array, ElementTag); \
1707 ASSERT_OOPS_ALLOWED; \
1708 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
1709 ) \
1710 ElementType* orig_result = (ElementType *) check_wrapped_array_release( \
1711 thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode); \
1712 UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \
1713 functionExit(thr); \
1714 JNI_END
1715
1716 WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool)
1717 WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte)
1718 WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short)
1719 WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char)
1720 WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int)
1721 WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long)
1722 WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float)
1723 WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double)
1724
1725 #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \
1726 JNI_ENTRY_CHECKED(void, \
1727 checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \
1728 ElementType##Array array, \
1729 jsize start, \
1730 jsize len, \
1731 ElementType *buf)) \
1732 functionEnter(thr); \
1733 IN_VM( \
1734 check_primitive_array_type(thr, array, ElementTag); \
1735 ) \
1736 UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \
1737 functionExit(thr); \
1738 JNI_END
1739
1740 WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1741 WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte)
1742 WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short)
1743 WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char)
1744 WRAPPER_GetScalarArrayRegion(T_INT, jint, Int)
1745 WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long)
1746 WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float)
1747 WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1748
1749 #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \
1750 JNI_ENTRY_CHECKED(void, \
1751 checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \
1752 ElementType##Array array, \
1753 jsize start, \
1754 jsize len, \
1755 const ElementType *buf)) \
1756 functionEnter(thr); \
1757 IN_VM( \
1758 check_primitive_array_type(thr, array, ElementTag); \
1759 ) \
1760 UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \
1761 functionExit(thr); \
1762 JNI_END
1763
1764 WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1765 WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte)
1766 WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short)
1767 WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char)
1768 WRAPPER_SetScalarArrayRegion(T_INT, jint, Int)
1769 WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long)
1770 WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float)
1771 WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1772
1773 JNI_ENTRY_CHECKED(jint,
1774 checked_jni_RegisterNatives(JNIEnv *env,
1775 jclass clazz,
1776 const JNINativeMethod *methods,
1777 jint nMethods))
1778 functionEnter(thr);
1779 jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods);
1780 functionExit(thr);
1781 return result;
1782 JNI_END
1783
1784 JNI_ENTRY_CHECKED(jint,
1785 checked_jni_UnregisterNatives(JNIEnv *env,
1786 jclass clazz))
1787 functionEnter(thr);
1788 jint result = UNCHECKED()->UnregisterNatives(env,clazz);
1789 functionExit(thr);
1790 return result;
1791 JNI_END
1792
1793 JNI_ENTRY_CHECKED(jint,
1794 checked_jni_MonitorEnter(JNIEnv *env,
1795 jobject obj))
1796 functionEnter(thr);
1797 IN_VM(
1798 jniCheck::validate_object(thr, obj);
1799 )
1800 jint result = UNCHECKED()->MonitorEnter(env,obj);
1801 functionExit(thr);
1802 return result;
1803 JNI_END
1804
1805 JNI_ENTRY_CHECKED(jint,
1806 checked_jni_MonitorExit(JNIEnv *env,
1807 jobject obj))
1808 functionEnterExceptionAllowed(thr);
1809 IN_VM(
1810 jniCheck::validate_object(thr, obj);
1811 )
1812 jint result = UNCHECKED()->MonitorExit(env,obj);
1813 functionExit(thr);
1814 return result;
1815 JNI_END
1816
1817 JNI_ENTRY_CHECKED(jint,
1818 checked_jni_GetJavaVM(JNIEnv *env,
1819 JavaVM **vm))
1820 functionEnter(thr);
1821 jint result = UNCHECKED()->GetJavaVM(env,vm);
1822 functionExit(thr);
1823 return result;
1824 JNI_END
1825
1826 JNI_ENTRY_CHECKED(void,
1827 checked_jni_GetStringRegion(JNIEnv *env,
1828 jstring str,
1829 jsize start,
1830 jsize len,
1831 jchar *buf))
1832 functionEnter(thr);
1833 IN_VM(
1834 checkString(thr, str);
1835 )
1836 UNCHECKED()->GetStringRegion(env, str, start, len, buf);
1837 functionExit(thr);
1838 JNI_END
1839
1840 JNI_ENTRY_CHECKED(void,
1841 checked_jni_GetStringUTFRegion(JNIEnv *env,
1842 jstring str,
1843 jsize start,
1844 jsize len,
1845 char *buf))
1846 functionEnter(thr);
1847 IN_VM(
1848 checkString(thr, str);
1849 )
1850 UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf);
1851 functionExit(thr);
1852 JNI_END
1853
1854 JNI_ENTRY_CHECKED(void *,
1855 checked_jni_GetPrimitiveArrayCritical(JNIEnv *env,
1856 jarray array,
1857 jboolean *isCopy))
1858 functionEnterCritical(thr);
1859 IN_VM(
1860 check_is_primitive_array(thr, array);
1861 )
1862 void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy);
1863 if (result != NULL) {
1864 result = check_jni_wrap_copy_array(thr, array, result);
1865 }
1866 functionExit(thr);
1867 return result;
1868 JNI_END
1869
1870 JNI_ENTRY_CHECKED(void,
1871 checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env,
1872 jarray array,
1873 void *carray,
1874 jint mode))
1875 functionEnterCriticalExceptionAllowed(thr);
1876 IN_VM(
1877 check_is_primitive_array(thr, array);
1878 )
1879 // Check the element array...
1880 void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode);
1881 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);
1882 functionExit(thr);
1883 JNI_END
1884
1885 JNI_ENTRY_CHECKED(const jchar*,
1886 checked_jni_GetStringCritical(JNIEnv *env,
1887 jstring string,
1888 jboolean *isCopy))
1889 functionEnterCritical(thr);
1890 IN_VM(
1891 checkString(thr, string);
1892 )
1893 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);
1894 functionExit(thr);
1895 return result;
1896 JNI_END
1897
1898 JNI_ENTRY_CHECKED(void,
1899 checked_jni_ReleaseStringCritical(JNIEnv *env,
1900 jstring str,
1901 const jchar *chars))
1902 functionEnterCriticalExceptionAllowed(thr);
1903 IN_VM(
1904 checkString(thr, str);
1905 )
1906 /* The Hotspot JNI code does not use the parameters, so just check the
1907 * string parameter as a minor sanity check
1908 */
1909 UNCHECKED()->ReleaseStringCritical(env, str, chars);
1910 functionExit(thr);
1911 JNI_END
1912
1913 JNI_ENTRY_CHECKED(jweak,
1914 checked_jni_NewWeakGlobalRef(JNIEnv *env,
1915 jobject obj))
1916 functionEnter(thr);
1917 IN_VM(
1918 if (obj != NULL) {
1919 jniCheck::validate_handle(thr, obj);
1920 }
1921 )
1922 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);
1923 functionExit(thr);
1924 return result;
1925 JNI_END
1926
1927 JNI_ENTRY_CHECKED(void,
1928 checked_jni_DeleteWeakGlobalRef(JNIEnv *env,
1929 jweak ref))
1930 functionEnterExceptionAllowed(thr);
1931 UNCHECKED()->DeleteWeakGlobalRef(env, ref);
1932 functionExit(thr);
1933 JNI_END
1934
1935 JNI_ENTRY_CHECKED(jboolean,
1936 checked_jni_ExceptionCheck(JNIEnv *env))
1937 thr->clear_pending_jni_exception_check();
1938 functionEnterExceptionAllowed(thr);
1939 jboolean result = UNCHECKED()->ExceptionCheck(env);
1940 functionExit(thr);
1941 return result;
1942 JNI_END
1943
1944 JNI_ENTRY_CHECKED(jobject,
1945 checked_jni_NewDirectByteBuffer(JNIEnv *env,
1946 void *address,
1947 jlong capacity))
1948 functionEnter(thr);
1949 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);
1950 functionExit(thr);
1951 return result;
1952 JNI_END
1953
1954 JNI_ENTRY_CHECKED(void *,
1955 checked_jni_GetDirectBufferAddress(JNIEnv *env,
1956 jobject buf))
1957 functionEnter(thr);
1958 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);
1959 functionExit(thr);
1960 return result;
1961 JNI_END
1962
1963 JNI_ENTRY_CHECKED(jlong,
1964 checked_jni_GetDirectBufferCapacity(JNIEnv *env,
1965 jobject buf))
1966 functionEnter(thr);
1967 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);
1968 functionExit(thr);
1969 return result;
1970 JNI_END
1971
1972 JNI_ENTRY_CHECKED(jobjectRefType,
1973 checked_jni_GetObjectRefType(JNIEnv *env,
1974 jobject obj))
1975 functionEnter(thr);
1976 /* validate the object being passed */
1977 IN_VM(
1978 jniCheck::validate_object(thr, obj);
1979 )
1980 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);
1981 functionExit(thr);
1982 return result;
1983 JNI_END
1984
1985
1986 JNI_ENTRY_CHECKED(jint,
1987 checked_jni_GetVersion(JNIEnv *env))
1988 functionEnter(thr);
1989 jint result = UNCHECKED()->GetVersion(env);
1990 functionExit(thr);
1991 return result;
1992 JNI_END
1993
1994 JNI_ENTRY_CHECKED(jobject,
1995 checked_jni_GetModule(JNIEnv *env,
1996 jclass clazz))
1997 functionEnter(thr);
1998 IN_VM(
1999 jniCheck::validate_class(thr, clazz, false);
2000 )
2001 jobject result = UNCHECKED()->GetModule(env,clazz);
2002 functionExit(thr);
2003 return result;
2004 JNI_END
2005
2006 /*
2007 * Structure containing all checked jni functions
2008 */
2009 struct JNINativeInterface_ checked_jni_NativeInterface = {
2010 NULL,
2011 NULL,
2012 NULL,
2013
2014 NULL,
2015
2016 checked_jni_GetVersion,
2017
2018 checked_jni_DefineClass,
2019 checked_jni_FindClass,
2020
2021 checked_jni_FromReflectedMethod,
2022 checked_jni_FromReflectedField,
2023
2024 checked_jni_ToReflectedMethod,
2025
2026 checked_jni_GetSuperclass,
2027 checked_jni_IsAssignableFrom,
2028
2029 checked_jni_ToReflectedField,
2030
2031 checked_jni_Throw,
2032 checked_jni_ThrowNew,
2033 checked_jni_ExceptionOccurred,
2034 checked_jni_ExceptionDescribe,
2035 checked_jni_ExceptionClear,
2036 checked_jni_FatalError,
2037
2038 checked_jni_PushLocalFrame,
2039 checked_jni_PopLocalFrame,
2040
2041 checked_jni_NewGlobalRef,
2042 checked_jni_DeleteGlobalRef,
2043 checked_jni_DeleteLocalRef,
2044 checked_jni_IsSameObject,
2045
2046 checked_jni_NewLocalRef,
2047 checked_jni_EnsureLocalCapacity,
2048
2049 checked_jni_AllocObject,
2050 checked_jni_NewObject,
2051 checked_jni_NewObjectV,
2052 checked_jni_NewObjectA,
2053
2054 checked_jni_GetObjectClass,
2055 checked_jni_IsInstanceOf,
2056
2057 checked_jni_GetMethodID,
2058
2059 checked_jni_CallObjectMethod,
2060 checked_jni_CallObjectMethodV,
2061 checked_jni_CallObjectMethodA,
2062 checked_jni_CallBooleanMethod,
2063 checked_jni_CallBooleanMethodV,
2064 checked_jni_CallBooleanMethodA,
2065 checked_jni_CallByteMethod,
2066 checked_jni_CallByteMethodV,
2067 checked_jni_CallByteMethodA,
2068 checked_jni_CallCharMethod,
2069 checked_jni_CallCharMethodV,
2070 checked_jni_CallCharMethodA,
2071 checked_jni_CallShortMethod,
2072 checked_jni_CallShortMethodV,
2073 checked_jni_CallShortMethodA,
2074 checked_jni_CallIntMethod,
2075 checked_jni_CallIntMethodV,
2076 checked_jni_CallIntMethodA,
2077 checked_jni_CallLongMethod,
2078 checked_jni_CallLongMethodV,
2079 checked_jni_CallLongMethodA,
2080 checked_jni_CallFloatMethod,
2081 checked_jni_CallFloatMethodV,
2082 checked_jni_CallFloatMethodA,
2083 checked_jni_CallDoubleMethod,
2084 checked_jni_CallDoubleMethodV,
2085 checked_jni_CallDoubleMethodA,
2086 checked_jni_CallVoidMethod,
2087 checked_jni_CallVoidMethodV,
2088 checked_jni_CallVoidMethodA,
2089
2090 checked_jni_CallNonvirtualObjectMethod,
2091 checked_jni_CallNonvirtualObjectMethodV,
2092 checked_jni_CallNonvirtualObjectMethodA,
2093 checked_jni_CallNonvirtualBooleanMethod,
2094 checked_jni_CallNonvirtualBooleanMethodV,
2095 checked_jni_CallNonvirtualBooleanMethodA,
2096 checked_jni_CallNonvirtualByteMethod,
2097 checked_jni_CallNonvirtualByteMethodV,
2098 checked_jni_CallNonvirtualByteMethodA,
2099 checked_jni_CallNonvirtualCharMethod,
2100 checked_jni_CallNonvirtualCharMethodV,
2101 checked_jni_CallNonvirtualCharMethodA,
2102 checked_jni_CallNonvirtualShortMethod,
2103 checked_jni_CallNonvirtualShortMethodV,
2104 checked_jni_CallNonvirtualShortMethodA,
2105 checked_jni_CallNonvirtualIntMethod,
2106 checked_jni_CallNonvirtualIntMethodV,
2107 checked_jni_CallNonvirtualIntMethodA,
2108 checked_jni_CallNonvirtualLongMethod,
2109 checked_jni_CallNonvirtualLongMethodV,
2110 checked_jni_CallNonvirtualLongMethodA,
2111 checked_jni_CallNonvirtualFloatMethod,
2112 checked_jni_CallNonvirtualFloatMethodV,
2113 checked_jni_CallNonvirtualFloatMethodA,
2114 checked_jni_CallNonvirtualDoubleMethod,
2115 checked_jni_CallNonvirtualDoubleMethodV,
2116 checked_jni_CallNonvirtualDoubleMethodA,
2117 checked_jni_CallNonvirtualVoidMethod,
2118 checked_jni_CallNonvirtualVoidMethodV,
2119 checked_jni_CallNonvirtualVoidMethodA,
2120
2121 checked_jni_GetFieldID,
2122
2123 checked_jni_GetObjectField,
2124 checked_jni_GetBooleanField,
2125 checked_jni_GetByteField,
2126 checked_jni_GetCharField,
2127 checked_jni_GetShortField,
2128 checked_jni_GetIntField,
2129 checked_jni_GetLongField,
2130 checked_jni_GetFloatField,
2131 checked_jni_GetDoubleField,
2132
2133 checked_jni_SetObjectField,
2134 checked_jni_SetBooleanField,
2135 checked_jni_SetByteField,
2136 checked_jni_SetCharField,
2137 checked_jni_SetShortField,
2138 checked_jni_SetIntField,
2139 checked_jni_SetLongField,
2140 checked_jni_SetFloatField,
2141 checked_jni_SetDoubleField,
2142
2143 checked_jni_GetStaticMethodID,
2144
2145 checked_jni_CallStaticObjectMethod,
2146 checked_jni_CallStaticObjectMethodV,
2147 checked_jni_CallStaticObjectMethodA,
2148 checked_jni_CallStaticBooleanMethod,
2149 checked_jni_CallStaticBooleanMethodV,
2150 checked_jni_CallStaticBooleanMethodA,
2151 checked_jni_CallStaticByteMethod,
2152 checked_jni_CallStaticByteMethodV,
2153 checked_jni_CallStaticByteMethodA,
2154 checked_jni_CallStaticCharMethod,
2155 checked_jni_CallStaticCharMethodV,
2156 checked_jni_CallStaticCharMethodA,
2157 checked_jni_CallStaticShortMethod,
2158 checked_jni_CallStaticShortMethodV,
2159 checked_jni_CallStaticShortMethodA,
2160 checked_jni_CallStaticIntMethod,
2161 checked_jni_CallStaticIntMethodV,
2162 checked_jni_CallStaticIntMethodA,
2163 checked_jni_CallStaticLongMethod,
2164 checked_jni_CallStaticLongMethodV,
2165 checked_jni_CallStaticLongMethodA,
2166 checked_jni_CallStaticFloatMethod,
2167 checked_jni_CallStaticFloatMethodV,
2168 checked_jni_CallStaticFloatMethodA,
2169 checked_jni_CallStaticDoubleMethod,
2170 checked_jni_CallStaticDoubleMethodV,
2171 checked_jni_CallStaticDoubleMethodA,
2172 checked_jni_CallStaticVoidMethod,
2173 checked_jni_CallStaticVoidMethodV,
2174 checked_jni_CallStaticVoidMethodA,
2175
2176 checked_jni_GetStaticFieldID,
2177
2178 checked_jni_GetStaticObjectField,
2179 checked_jni_GetStaticBooleanField,
2180 checked_jni_GetStaticByteField,
2181 checked_jni_GetStaticCharField,
2182 checked_jni_GetStaticShortField,
2183 checked_jni_GetStaticIntField,
2184 checked_jni_GetStaticLongField,
2185 checked_jni_GetStaticFloatField,
2186 checked_jni_GetStaticDoubleField,
2187
2188 checked_jni_SetStaticObjectField,
2189 checked_jni_SetStaticBooleanField,
2190 checked_jni_SetStaticByteField,
2191 checked_jni_SetStaticCharField,
2192 checked_jni_SetStaticShortField,
2193 checked_jni_SetStaticIntField,
2194 checked_jni_SetStaticLongField,
2195 checked_jni_SetStaticFloatField,
2196 checked_jni_SetStaticDoubleField,
2197
2198 checked_jni_NewString,
2199 checked_jni_GetStringLength,
2200 checked_jni_GetStringChars,
2201 checked_jni_ReleaseStringChars,
2202
2203 checked_jni_NewStringUTF,
2204 checked_jni_GetStringUTFLength,
2205 checked_jni_GetStringUTFChars,
2206 checked_jni_ReleaseStringUTFChars,
2207
2208 checked_jni_GetArrayLength,
2209
2210 checked_jni_NewObjectArray,
2211 checked_jni_GetObjectArrayElement,
2212 checked_jni_SetObjectArrayElement,
2213
2214 checked_jni_NewBooleanArray,
2215 checked_jni_NewByteArray,
2216 checked_jni_NewCharArray,
2217 checked_jni_NewShortArray,
2218 checked_jni_NewIntArray,
2219 checked_jni_NewLongArray,
2220 checked_jni_NewFloatArray,
2221 checked_jni_NewDoubleArray,
2222
2223 checked_jni_GetBooleanArrayElements,
2224 checked_jni_GetByteArrayElements,
2225 checked_jni_GetCharArrayElements,
2226 checked_jni_GetShortArrayElements,
2227 checked_jni_GetIntArrayElements,
2228 checked_jni_GetLongArrayElements,
2229 checked_jni_GetFloatArrayElements,
2230 checked_jni_GetDoubleArrayElements,
2231
2232 checked_jni_ReleaseBooleanArrayElements,
2233 checked_jni_ReleaseByteArrayElements,
2234 checked_jni_ReleaseCharArrayElements,
2235 checked_jni_ReleaseShortArrayElements,
2236 checked_jni_ReleaseIntArrayElements,
2237 checked_jni_ReleaseLongArrayElements,
2238 checked_jni_ReleaseFloatArrayElements,
2239 checked_jni_ReleaseDoubleArrayElements,
2240
2241 checked_jni_GetBooleanArrayRegion,
2242 checked_jni_GetByteArrayRegion,
2243 checked_jni_GetCharArrayRegion,
2244 checked_jni_GetShortArrayRegion,
2245 checked_jni_GetIntArrayRegion,
2246 checked_jni_GetLongArrayRegion,
2247 checked_jni_GetFloatArrayRegion,
2248 checked_jni_GetDoubleArrayRegion,
2249
2250 checked_jni_SetBooleanArrayRegion,
2251 checked_jni_SetByteArrayRegion,
2252 checked_jni_SetCharArrayRegion,
2253 checked_jni_SetShortArrayRegion,
2254 checked_jni_SetIntArrayRegion,
2255 checked_jni_SetLongArrayRegion,
2256 checked_jni_SetFloatArrayRegion,
2257 checked_jni_SetDoubleArrayRegion,
2258
2259 checked_jni_RegisterNatives,
2260 checked_jni_UnregisterNatives,
2261
2262 checked_jni_MonitorEnter,
2263 checked_jni_MonitorExit,
2264
2265 checked_jni_GetJavaVM,
2266
2267 checked_jni_GetStringRegion,
2268 checked_jni_GetStringUTFRegion,
2269
2270 checked_jni_GetPrimitiveArrayCritical,
2271 checked_jni_ReleasePrimitiveArrayCritical,
2272
2273 checked_jni_GetStringCritical,
2274 checked_jni_ReleaseStringCritical,
2275
2276 checked_jni_NewWeakGlobalRef,
2277 checked_jni_DeleteWeakGlobalRef,
2278
2279 checked_jni_ExceptionCheck,
2280
2281 checked_jni_NewDirectByteBuffer,
2282 checked_jni_GetDirectBufferAddress,
2283 checked_jni_GetDirectBufferCapacity,
2284
2285 // New 1.6 Features
2286
2287 checked_jni_GetObjectRefType,
2288
2289 // Module Features
2290
2291 checked_jni_GetModule
2292 };
2293
2294
2295 // Returns the function structure
2296 struct JNINativeInterface_* jni_functions_check() {
2297
2298 unchecked_jni_NativeInterface = jni_functions_nocheck();
2299
2300 // make sure the last pointer in the checked table is not null, indicating
2301 // an addition to the JNINativeInterface_ structure without initializing
2302 // it in the checked table.
2303 debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \
2304 sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));)
2305 assert(*lastPtr != 0,
2306 "Mismatched JNINativeInterface tables, check for new entries");
2307
2308 // with -verbose:jni this message will print
2309 if (PrintJNIResolving) {
2310 tty->print_cr("Checked JNI functions are being used to " \
2311 "validate JNI usage");
2312 }
2313
2314 return &checked_jni_NativeInterface;
2315 }