LABEL REPORT: gc-epsilon

This report shows bugs with the given label, along with their backporting status.

Report generated: Mon Oct 12 07:33:21 CEST 2026

Minimal actionable level to display: NONE

hotspot/gc

Fix Versions Bug Synopsis
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ❉ JDK-8375359 Improve GC serviceability init staging
✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✔ ✖ ✖ ✔ ❉ ✖ ✖ JDK-8347256 Epsilon: Demote heap size and AlwaysPreTouch warnings to info level
✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ❉ JDK-8373941 Epsilon: Robust counter updates in early VM phases
✔ ❉ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8215724 Epsilon: ArrayStoreExceptionTest.java fails; missing arraycopy check
✖ ✖ ✖ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✔ ❉ ✖ ✔ ✖ ✖ JDK-8328166 Epsilon: 'EpsilonHeap::allocate_work' misuses the parameter 'size' as size in bytes
✖ ✖ ✖ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✔ ❉ ✖ ✔ ✖ ✖ JDK-8328168 Epsilon: Premature OOM when allocating object larger than uncommitted heap size
❉ ✔ ✖ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8207006 serviceability/sa/TestUniverse.java#id0 crashes with EpsilonGC and AOT
✔ ❉ ✖ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8207056 Epsilon GC to support object pinning
✔ ✖ ✔ ❉ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8230646 Epsilon does not extend TLABs to max size
✔ ✖ ✖ ✖ ✖ ✖ ❉ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8267348 Rewrite gc/epsilon/TestClasses.java to use Metaspace with less classes
✔ ❉ ✖ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8209942 [epsilon] range function for EpsilonTLABElasticity causes compiler warning
✔ ✔ ❉ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8217014 Epsilon should not ignore Metadata GC causes
✔ ✔ ❉ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8217471 [TESTBUG] gc/epsilon/TestClasses.java fails on some platforms - OOME Metaspace
✔ ✖ ✔ ❉ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8232051 Epsilon should warn about Xms/Xmx/AlwaysPreTouch configuration
✔ ✖ ✖ ✖ ❉ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8237182 Update copyright header for shenandoah and epsilon files
✖ ✖ ✖ ✖ ❉ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8245718 Epsilon: improve configuration logging
✔ ✖ ✖ ✖ ✖ ❉ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8253219 Epsilon: clean up unnecessary includes
✔ ✖ ✖ ✖ ✖ ❉ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8253220 Epsilon: clean up unused code/declarations
✔ ✖ ✖ ✖ ✖ ❉ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8257565 epsilonBarrierSet.hpp should not include barrierSetAssembler
✔ ✖ ✖ ✖ ✖ ✔ ❉ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8258534 Epsilon: clean up unused includes
✔ ✖ ✖ ✖ ✖ ✔ ❉ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8259231 Epsilon: improve performance under contention during virtual space expansion
✔ ✖ ✖ ✖ ✖ ✖ ❉ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8265335 Epsilon: Minor typo in EpsilonElasticTLABDecay description
✔ ✖ ✖ ✖ ✖ ✖ ✔ ❉ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8272783 Epsilon: Refactor tests to improve performance
✖ ✖ ✖ ✖ ✖ ✖ ✔ ❉ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8277866 gc/epsilon/TestMemoryMXBeans.java failed with wrong initial heap size
✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ❉ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8295433 EpsilonHeap doesn't need to override post_initialize()
✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ❉ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8301178 Replace NULL with nullptr in share/gc/epsilon/
✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ❉ ✖ ✖ JDK-8348171 Refactor GenerationCounters and its subclasses
✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ❉ JDK-8374876 Epsilon: Convert to use Atomic
✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ✖ ❉ JDK-8376131 Convert ContiguousSpace to use Atomic

hotspot/runtime

Fix Versions Bug Synopsis
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✖ ✖ ✖ ✖ ✖ ✖ ✖ ❉ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8270489 Support archived heap objects in EpsilonGC
✖ ✖ ✖ ✖ ✖ ✖ ✖ ❉ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8274033 Some tier-4 CDS EpsilonGC tests throw OOM

hotspot/svc-agent

Fix Versions Bug Synopsis
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
✔ ✔ ❉ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ ✖ ✔ ✖ ✖ JDK-8218733 SA: CollectedHeap provides broken implementation for used() and capacity()