[11u] compiler/gcbarriers/UnsafeIntrinsicsTest_z failing with OOM

In SAP's CI, the test compiler/gcbarriers/UnsafeIntrinsicsTest_z is constantly failing with OOMs in a certain linux configuration:
----------System.out:(4/249)----------
CompileCommand: dontinline *.mergeImpl*
Testing CAS with 4 thread and 133700 nodes
For random generator using seed: 5943108546127939965
To re-run test with same seed value please add "-Djdk.test.lib.random.seed=5943108546127939965" to command line.
----------System.err:(11/670)----------

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "Thread-2"
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
at compiler.gcbarriers.Runner.makeBranch(UnsafeIntrinsicsTest.java:372)
at compiler.gcbarriers.Runner.run(UnsafeIntrinsicsTest.java:244)
at java.base/java.lang.Thread.run(Thread.java:829)
java.lang.OutOfMemoryError: Java heap space
STATUS:Failed.STATUS:Failed.STATUS:Failed.`main' threw exception: java.lang.OutOfMemoryError: Java heap space
`main' threw exception: java.lang.OutOfMemoryError: Java heap space
`main' threw exception: java.lang.OutOfMemoryError: Java heap space