On Tue, 29 Oct 2024 04:31:28 GMT, Chris Plummer <[email protected]> wrote:
>> The fix cleans up code to support list of JVMTI breakpoints.
>> - classes required to supports cache of byte code pointers (GrowableElement,
>> GrowableCache, JvmtiBreakpointCache) are dropped;
>> - class JvmtiCurrentBreakpoints (JvmtiBreakpoints factory) is left as is,
>> dropped unused code;
>> - fixed race in JvmtiCurrentBreakpoints::get_jvmti_breakpoints() (fix for
>> JDK-8210637);
>> - JvmtiBreakpoint:JvmtiBreakpoint() + JvmtiBreakpoint::copy(JvmtiBreakpoint&
>> bp) are replaced with copy ctor;
>> - JvmtiBreakpoints::clearall_in_class_at_safepoint() is simplified to do a
>> single pass;
>>
>> Testing: tier1..tier6
>
> src/hotspot/share/prims/jvmtiImpl.cpp line 208:
>
>> 206:
>> 207: JvmtiBreakpoints::JvmtiBreakpoints()
>> 208: : _elements(5, mtServiceability) {
>
> Do we have tests that create more than 5 breakpoints? I just want to make
> sure the array growing code is exercised. You could stress it by testing with
> the initial size set to 1.
This is the same we had before (in `GrowableCache::initialize`, old line 142):
`_elements = new (mtServiceability) GrowableArray<GrowableElement*>(5,
mtServiceability);`
I set the initial size to 1, JDI tests (some of them have more than 1
breakpoint) passed
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PR Review Comment: https://git.openjdk.org/jdk/pull/21675#discussion_r1821413575
