[ https://issues.apache.org/jira/browse/HARMONY-4338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gregory Shimansky resolved HARMONY-4338.
----------------------------------------
Resolution: Fixed
Assignee: Gregory Shimansky
Patch is applied at 562472. Please check that the bug is fixed for you.
> [drlvm][jvmti] JNI function NewStringUTF() invoked from Exception callback throws assertion
`!is_unwindable()'
> --------------------------------------------------------------------------------------------------------------
>
> Key: HARMONY-4338
> URL: https://issues.apache.org/jira/browse/HARMONY-4338
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: Windows/x86, Linux/x86, harmony-jdk-r551077
> Reporter: Ivan Popov
> Assignee: Gregory Shimansky
> Attachments: H4338.patch, H4338.patch, HY-4338.zip
>
>
> With patch for HARMONY-2892 JDWP agent is able to defer initialization until exception
is thrown and launch debugger on demand. patched agent works well on top on Sun JVM (even
with -Xcheck:jni), but fails with DRLVM. The problem is that JNI function NewStringUTF() throws
assertion `!is_unwindable()' when it is invoked from Exception callback while agent performs
deferred initialization. Here is stack trace:
> java: .../trunk/working_vm/vm/vmcore/src/util/vm_strings.cpp:345: _jobject* string_create_from_utf8_h(const
char*, unsigned int): Assertion `!is_unwindable()' failed.
> SIGABRT in VM code.
> Stack trace:
> 0: ?? (??:-1)
> 1: abort (??:-1)
> 2: __assert_fail (??:-1)
> 3: string_create_from_utf8_h(char const*, unsigned int) (.../trunk/working_vm/vm/vmcore/src/util/vm_strings.cpp:346)
> 4: NewStringUTF(JNIEnv_External*, char const*) (.../trunk/working_vm/vm/vmcore/src/jni/jni.cpp:1159)
> 5: JNIEnv_External::NewStringUTF(char const*) (.../trunk/working_vm/vm/include/jni.h:1441)
> 6: jdwp::ThreadManager::CreateAgentThread(JNIEnv_External*, char const*) (../../common/agent/core/ThreadManager.cpp:291)
> 7: jdwp::ThreadManager::RunAgentThread(JNIEnv_External*, void (*)(jvmtiEnv_struct*,
JNIEnv_External*, void*), void const*, int, char const*, _jobject*) (../../common/agent/core/ThreadManager.cpp:254)
> 8: jdwp::EventDispatcher::Start(JNIEnv_External*) (../../common/agent/core/EventDispatcher.cpp:119)
> 9: jdwp::AgentManager::Start(jvmtiEnv_struct*, JNIEnv_External*) (../../common/agent/core/AgentManager.cpp:88)
> 10: jdwp::RequestManager::HandleException(jvmtiEnv_struct*, JNIEnv_External*, _jobject*,
_jmethodID*, long long, _jobject*, _jmethodID*, long long) (../../common/agent/core/RequestManager.cpp:953)
> 11: jvmti_send_exception_event (.../trunk/working_vm/vm/vmcore/src/jvmti/jvmti_event.cpp:1421)
> 12: jvmti_jit_exception_event_callback_call(ManagedObject*, JIT*, Method*, void*, JIT*,
Method*, void*) (.../trunk/working_vm/vm/vmcore/src/jvmti/jvmti_event.cpp:1531)
> 13: exn_propagate_exception (.../trunk/working_vm/vm/vmcore/src/exception/exceptions_jit.cpp:404)
> 14: exn_throw_for_JIT(ManagedObject*, Class*, Method*, unsigned char*, jvalue*) (.../trunk/working_vm/vm/vmcore/src/exception/exceptions_jit.cpp:470)
> 15: exn_athrow(ManagedObject*, Class*, Method*, unsigned char*) (.../trunk/working_vm/vm/vmcore/src/exception/exceptions_jit.cpp:505)
> 16: ?? (??:-1)
> 17: HelloException.main([Ljava/lang/String;)V (HelloException.java:4)
> <end of stack trace>
> Aborted
> To reproduce this bug see instructions in HARMONY-2892 how to launch JDWP agent in this
mode.
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