The following test failed in the JDK15 CI:

java/io/StringBufferInputStream/OverflowInRead.java

Here's a snippet from the log file:

#section:main
----------messages:(4/171)----------
command: main -Xmx4g OverflowInRead
reason: User specified action: run main/othervm -Xmx4g OverflowInRead
Mode: othervm [/othervm specified]
elapsed time (seconds): 1.25
----------configuration:(0/0)----------
----------System.out:(0/0)----------
----------System.err:(13/789)----------
java.lang.OutOfMemoryError: Java heap space
at OverflowInRead.main(OverflowInRead.java:43)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
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.OutOfMemoryError: Java heap space
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.OutOfMemoryError: Java heap space
----------rerun:(38/4080)*----------

It seems really odd for this test to failed with an OutOfMemoryError
when it is run with this option: -Xmx4g