The following test failed in the JDK15 CI:

compiler/codecache/stress/ReturnBlobToWrongHeapTest.java

Here's a snippet from the log file:

----------System.out:(11/744)----------
CompileCommand: dontinline compiler/codecache/stress/Helper$TestCase.method
[1.740s][warning][codecache] CodeHeap 'non-profiled nmethods' is full. Compiler has been disabled.
[1.740s][warning][codecache] Try increasing the code heap size using -XX:NonProfiledCodeHeapSize=
CodeHeap 'non-profiled nmethods': size=11248Kb used=11248Kb max_used=11248Kb free=0Kb
 bounds [0x000000010c171000, 0x000000010cc6d000, 0x000000010cc6d000]
CodeHeap 'non-nmethods': size=5136Kb used=1247Kb max_used=1684Kb free=3888Kb
 bounds [0x000000010bc6d000, 0x000000010bedd000, 0x000000010c171000]
 total_blobs=1086 nmethods=148 adapters=853
 compilation: disabled (not enough contiguous free space left)
              stopped_count=1, restarted_count=0
 full_count=0
----------System.err:(15/1185)----------
Java HotSpot(TM) 64-Bit Server VM warning: CodeHeap 'non-profiled nmethods' is full. Compiler has been disabled.
Java HotSpot(TM) 64-Bit Server VM warning: Try increasing the code heap size using -XX:NonProfiledCodeHeapSize=
java.lang.RuntimeException: Test failed: Not possible to allocate segment-sized blob
at compiler.codecache.stress.ReturnBlobToWrongHeapTest.main(ReturnBlobToWrongHeapTest.java:78)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:832)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Test failed: Not possible to allocate segment-sized blob
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Test failed: Not possible to allocate segment-sized blob
----------rerun:(49/8402)*----------