# JEP 516: can the cache's archived heap objects be used? One row per (JDK, GC the cache was built under, GC at run time). # 'heap objects' = the log says the archived module graph was used; 'unusable' = the JVM refused the whole cache. JDK 25 cache built under G1 run under Serial -> heap objects used (full module graph: enabled) JDK 25 cache built under G1 run under G1 -> heap objects used (full module graph: enabled) JDK 25 cache built under G1 run under Z -> unusable: saved state of UseCompressedOops and UseCompressedClassPointers is different from runtime JDK 25 cache built under Z run under Serial -> unusable: saved state of UseCompressedOops and UseCompressedClassPointers is different from runtime JDK 25 cache built under Z run under G1 -> unusable: saved state of UseCompressedOops and UseCompressedClassPointers is different from runtime JDK 25 cache built under Z run under Z -> cache used, heap objects NOT used (full module graph: disabled) JDK 26 cache built under G1 run under Serial -> heap objects used (full module graph: enabled) JDK 26 cache built under G1 run under G1 -> heap objects used (full module graph: enabled) JDK 26 cache built under G1 run under Z -> unusable: saved state of UseCompressedOops and UseCompressedClassPointers is different from runtime JDK 26 cache built under Z run under Serial -> unusable: saved state of UseCompressedOops and UseCompressedClassPointers is different from runtime JDK 26 cache built under Z run under G1 -> unusable: saved state of UseCompressedOops and UseCompressedClassPointers is different from runtime JDK 26 cache built under Z run under Z -> heap objects used (full module graph: enabled) JDK 27 cache built under G1 run under Serial -> heap objects used (full module graph: enabled) JDK 27 cache built under G1 run under G1 -> heap objects used (full module graph: enabled) JDK 27 cache built under G1 run under Z -> unusable: saved state of UseCompressedOops (1) is different from runtime (0) JDK 27 cache built under Z run under Serial -> unusable: saved state of UseCompressedOops (0) is different from runtime (1) JDK 27 cache built under Z run under G1 -> unusable: saved state of UseCompressedOops (0) is different from runtime (1) JDK 27 cache built under Z run under Z -> heap objects used (full module graph: enabled)