CDS generates non-deterministic output

The following test is failing in the JDK16 CI:

runtime/cds/DeterministicDump.java

Here's a snippet from the log file:

----------System.err:(14/863)----------
java.lang.RuntimeException: File content different at byte #4, b0 = -62, b1 = -41
at DeterministicDump.compare(DeterministicDump.java:117)
at DeterministicDump.doTest(DeterministicDump.java:68)
at DeterministicDump.main(DeterministicDump.java:43)
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.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:832)

JavaTest Message: Test threw exception: java.lang.RuntimeException
JavaTest Message: shutting down test

result: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: File content different at byte #4, b0 = -62, b1 = -41

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The failure seems to have happened after JDK-8253208