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.inline.hpp"
  40 #include "runtime/interfaceSupport.inline.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

  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.inline.hpp"
  39 #include "runtime/handles.inline.hpp"
  40 #include "runtime/interfaceSupport.inline.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