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8386963: [lworld] Improve the exception message from Object synchronization methods on value objects #2568

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jaikiran wants to merge 4 commits into from
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8386963: [lworld] Improve the exception message from Object synchronization methods on value objects #2568

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8386963: [lworld] Improve the exception message from Object synchroni…
jaikiran Jun 17, 2026
5824695
no need for ResourceMark
jaikiran Jun 19, 2026
d693fcb
merge latest from lworld branch
jaikiran Jun 23, 2026
38c1cfd
merge latest from lworld branch
jaikiran Jun 25, 2026
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18 changes: 12 additions & 6 deletions src/hotspot/share/runtime/synchronizer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -319,16 +319,22 @@ static bool _no_progress_skip_increment = false;
// find out this inline type object cannot be locked.
#define CHECK_THROW_NOSYNC_IMSE(obj) \
if ((obj)->mark().is_inline_type()) { \
JavaThread* THREAD = current; \
ResourceMark rm(THREAD); \
THROW_MSG(vmSymbols::java_lang_IllegalMonitorStateException(), obj->klass()->external_name()); \
/*
* A value object can never be synchronized upon. The error message we use
* here is (accurate and) consistent with the one we use for identity objects
* when the current thread isn't the owner of the monitor.
*/ \
THROW_MSG(vmSymbols::java_lang_IllegalMonitorStateException(), "current thread is not owner"); \
}

#define CHECK_THROW_NOSYNC_IMSE_0(obj) \
if ((obj)->mark().is_inline_type()) { \
JavaThread* THREAD = current; \
ResourceMark rm(THREAD); \
THROW_MSG_0(vmSymbols::java_lang_IllegalMonitorStateException(), obj->klass()->external_name()); \
/*
* A value object can never be synchronized upon. The error message we use
* here is (accurate and) consistent with the one we use for identity objects
* when the current thread isn't the owner of the monitor.
*/ \
THROW_MSG_0(vmSymbols::java_lang_IllegalMonitorStateException(), "current thread is not owner"); \
}

// =====================> Quick functions
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