JDK-8139150 : ClassVerifier frees exception message while it's still in use
- Type: Bug
- Component: hotspot
- Sub-Component: runtime
- Affected Version: 8,9
- Priority: P2
- Status: Resolved
- Resolution: Fixed
- Submitted: 2015-10-08
- Updated: 2016-01-14
- Resolved: 2015-10-09
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| JDK 8 | JDK 9 |
|---|---|
8u72Fixed  |
9 b89Fixed |
Description
While testing the CompactStrings implementation, I encountered weird crashes in java_lang_String::create_from_str(const char* utf8_str) that were due to 'utf8_str' containing garbage. V [libjvm.so+0x1160d00] VMError::report_and_die()+0x160 V [libjvm.so+0x83276f] report_should_not_reach_here(char const*, int)+0x6f V [libjvm.so+0xae52df] java_lang_String::create_from_str(char const*, Thread*)+0x28f V [libjvm.so+0x901ab5] Exceptions::new_exception(Thread*, Symbol*, char const*, Handle, Handle, Handle, Exceptions::ExceptionMsgToUtf8Mode)+0x225 V [libjvm.so+0x9021ab] Exceptions::_throw_msg(Thread*, char const*, int, Symbol*, char const*)+0x12b V [libjvm.so+0x1142e5b] Verifier::verify(instanceKlassHandle, Verifier::Mode, bool, Thread*)+0xa9b It turned out that the problem is in the ClassVerifier freeing the exception message while it's still in use.
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