380 }
381 if ((int)strlen(name) > Symbol::max_length()) {
382 Exceptions::fthrow(THREAD_AND_LOCATION,
383 vmSymbols::java_lang_NoClassDefFoundError(),
384 "Class name exceeds maximum length of %d: %s",
385 Symbol::max_length(),
386 name);
387 return 0;
388 }
389
390 //%note jni_3
391 Handle protection_domain;
392 // Find calling class
393 Klass* k = thread->security_get_caller_class(0);
394 // default to the system loader when no context
395 Handle loader(THREAD, SystemDictionary::java_system_loader());
396 if (k != NULL) {
397 // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed
398 // in the correct class context.
399 if (k->class_loader() == NULL &&
400 k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) {
401 JavaValue result(T_OBJECT);
402 JavaCalls::call_static(&result, k,
403 vmSymbols::getFromClass_name(),
404 vmSymbols::void_class_signature(),
405 CHECK_NULL);
406 // When invoked from JNI_OnLoad, NativeLibrary::getFromClass returns
407 // a non-NULL Class object. When invoked from JNI_OnUnload,
408 // it will return NULL to indicate no context.
409 oop mirror = (oop) result.get_jobject();
410 if (mirror != NULL) {
411 Klass* fromClass = java_lang_Class::as_Klass(mirror);
412 loader = Handle(THREAD, fromClass->class_loader());
413 protection_domain = Handle(THREAD, fromClass->protection_domain());
414 }
415 } else {
416 loader = Handle(THREAD, k->class_loader());
417 }
418 }
419
420 TempNewSymbol sym = SymbolTable::new_symbol(name);
421 result = find_class_from_class_loader(env, sym, true, loader,
422 protection_domain, true, thread);
423
424 if (log_is_enabled(Debug, class, resolve) && result != NULL) {
425 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
426 }
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380 }
381 if ((int)strlen(name) > Symbol::max_length()) {
382 Exceptions::fthrow(THREAD_AND_LOCATION,
383 vmSymbols::java_lang_NoClassDefFoundError(),
384 "Class name exceeds maximum length of %d: %s",
385 Symbol::max_length(),
386 name);
387 return 0;
388 }
389
390 //%note jni_3
391 Handle protection_domain;
392 // Find calling class
393 Klass* k = thread->security_get_caller_class(0);
394 // default to the system loader when no context
395 Handle loader(THREAD, SystemDictionary::java_system_loader());
396 if (k != NULL) {
397 // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed
398 // in the correct class context.
399 if (k->class_loader() == NULL &&
400 k->name() == vmSymbols::jdk_internal_loader_NativeLibraries()) {
401 JavaValue result(T_OBJECT);
402 JavaCalls::call_static(&result, k,
403 vmSymbols::getFromClass_name(),
404 vmSymbols::void_class_signature(),
405 CHECK_NULL);
406 // When invoked from JNI_OnLoad, NativeLibraries::getFromClass returns
407 // a non-NULL Class object. When invoked from JNI_OnUnload,
408 // it will return NULL to indicate no context.
409 oop mirror = (oop) result.get_jobject();
410 if (mirror != NULL) {
411 Klass* fromClass = java_lang_Class::as_Klass(mirror);
412 loader = Handle(THREAD, fromClass->class_loader());
413 protection_domain = Handle(THREAD, fromClass->protection_domain());
414 }
415 } else {
416 loader = Handle(THREAD, k->class_loader());
417 }
418 }
419
420 TempNewSymbol sym = SymbolTable::new_symbol(name);
421 result = find_class_from_class_loader(env, sym, true, loader,
422 protection_domain, true, thread);
423
424 if (log_is_enabled(Debug, class, resolve) && result != NULL) {
425 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
426 }
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