Integrated: 8342577: Clean up JVMTI breakpoint support

[Alex Menkov]

On Thu, 24 Oct 2024 01:42:36 GMT, Alex Menkov <amenkov at openjdk.org> 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

This pull request has now been integrated.

Changeset: 471f112b
Author:    Alex Menkov <amenkov at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/471f112bca715d04304cbe35c6ed63df8c7b7fee
Stats:     352 lines in 2 files changed: 27 ins; 284 del; 41 mod

8342577: Clean up JVMTI breakpoint support
8210637: Race in JvmtiCurrentBreakpoints::get_jvmti_breakpoints

Reviewed-by: cjplummer, sspitsyn

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PR: https://git.openjdk.org/jdk/pull/21675