java/security/Policy/Root/Root.java fails when home directory is read-only

The following test fails in the JDK21 CI:

java/security/Policy/Root/Root.java

Heres a snippet from the log file:

#section:testng
----------messages:(6/219)----------
command: testng Root
reason: User specified action: run testng/othervm Root
started: Wed Jan 11 19:56:10 GMT 2023
Mode: othervm [/othervm specified]
finished: Wed Jan 11 19:56:10 GMT 2023
elapsed time (seconds): 0.887
----------configuration:(0/0)----------
----------System.out:(80/5227)----------
config Root.setup(): failure
java.nio.file.AccessDeniedException: /opt/mach5/.java.policy
at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:90)
at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:106)
at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
at java.base/sun.nio.fs.UnixFileSystem.copyFile(UnixFileSystem.java:668)
at java.base/sun.nio.fs.BsdFileSystem.copyFile(BsdFileSystem.java:154)
at java.base/sun.nio.fs.UnixFileSystem.copy(UnixFileSystem.java:1060)
at java.base/sun.nio.fs.UnixFileSystemProvider.copy(UnixFileSystemProvider.java:300)
at java.base/java.nio.file.Files.copy(Files.java:1303)
at Root.setup(Root.java:53)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:61)
at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:366)
at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:320)
at org.testng.TestRunner.invokeTestConfigurations(TestRunner.java:617)
at org.testng.TestRunner.beforeRun(TestRunner.java:607)
at org.testng.TestRunner.run(TestRunner.java:578)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
at org.testng.SuiteRunner.run(SuiteRunner.java:286)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1218)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1140)
at org.testng.TestNG.runSuites(TestNG.java:1069)
at org.testng.TestNG.run(TestNG.java:1037)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:93)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:53)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:125)
at java.base/java.lang.Thread.run(Thread.java:1623)
test Root.test(): skip
java.nio.file.AccessDeniedException: /opt/mach5/.java.policy
at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:90)
at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:106)
at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
at java.base/sun.nio.fs.UnixFileSystem.copyFile(UnixFileSystem.java:668)
at java.base/sun.nio.fs.BsdFileSystem.copyFile(BsdFileSystem.java:154)
at java.base/sun.nio.fs.UnixFileSystem.copy(UnixFileSystem.java:1060)
at java.base/sun.nio.fs.UnixFileSystemProvider.copy(UnixFileSystemProvider.java:300)
at java.base/java.nio.file.Files.copy(Files.java:1303)
at Root.setup(Root.java:53)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:61)
at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:366)
at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:320)
at org.testng.TestRunner.invokeTestConfigurations(TestRunner.java:617)
at org.testng.TestRunner.beforeRun(TestRunner.java:607)
at org.testng.TestRunner.run(TestRunner.java:578)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
at org.testng.SuiteRunner.run(SuiteRunner.java:286)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1218)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1140)
at org.testng.TestNG.runSuites(TestNG.java:1069)
at org.testng.TestNG.run(TestNG.java:1037)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:93)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:53)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:125)
at java.base/java.lang.Thread.run(Thread.java:1623)
config Root.cleanUp(): skip

===============================================
java/security/Policy/Root/Root.java
Total tests run: 1, Passes: 0, Failures: 0, Skips: 1
Configuration Failures: 1, Skips: 1
===============================================

----------System.err:(12/672)----------
java.lang.Exception: failures: 1
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:95)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:53)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:125)
at java.base/java.lang.Thread.run(Thread.java:1623)

JavaTest Message: Test threw exception: java.lang.Exception: failures: 1
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.Exception: failures: 1
----------rerun:(35/7521)*----------