java.lang.VirtualMachineError: Out of space in CodeCache for method handle intrinsic

[Artur-]

Reporting this on behalf of other people as I have not experienced it myself nor do I know if it is expected or some kind of problem.

Anyway, it seems like even after a few hotswaps (around 5) you might run into this java.lang.VirtualMachineError: Out of space in CodeCache for method handle intrinsic or

OpenJDK 64-Bit Server VM warning: CodeCache is full. Compiler has been disabled.
OpenJDK 64-Bit Server VM warning: Try increasing the code cache size using -XX:ReservedCodeCacheSize=
OpenJDK 64-Bit Server VM warning: Initialization of C1 CompilerThread1 thread failed (no space to run compilers)

Is this something common that others run into? I found some old JDK bugs that were resolved related to this

[skybber]

It is known issue reported here:

https://youtrack.jetbrains.com/issue/JBR-7351/JVM-CodeCache-will-not-be-cleaned-using-G1GC-if-Hotswap-Agent-is-enabled-since-JBR-6419-jbr21.351

there is workaround -XX:+ClassUnloading

[emarc]

I get this even with -XX:+ClassUnloading.

With the default, I run out of CodeCache pretty quickly, but even after doing -XX:ReservedCodeCacheSize=128M I run out after a while.

Default:

[197.229s][warning][codecache] CodeCache is full. Compiler has been disabled.
[197.229s][warning][codecache] Try increasing the code cache size using -XX:ReservedCodeCacheSize=
CodeCache: size=49152Kb used=49151Kb max_used=49151Kb free=0Kb
 bounds [0x000000010a9a0000, 0x000000010d9a0000, 0x000000010d9a0000]
 total_blobs=27751 nmethods=26995 adapters=682
 compilation: disabled (not enough contiguous free space left)
              stopped_count=1, restarted_count=0
 full_count=1

After increasing:

[250.099s][warning][codecache] CodeCache is full. Compiler has been disabled.
[250.099s][warning][codecache] Try increasing the code cache size using -XX:ReservedCodeCacheSize=
CodeCache: size=131072Kb used=131071Kb max_used=131071Kb free=0Kb
 bounds [0x0000000107274000, 0x000000010f274000, 0x000000010f274000]
 total_blobs=75893 nmethods=75138 adapters=682
 compilation: disabled (not enough contiguous free space left)
              stopped_count=1, restarted_count=0
 full_count=1

[skybber]

Problem should be is fixed in last JBR 21 version and it works without any additional options.