RFR: 8339487: ProcessHandleImpl native exceptions - include message text and last error information

[Matthias Baesken]

When running jtreg test java/lang/ProcessHandle/PermissionTest.java on macOS, a few times this error occurs :

java.lang.RuntimeException: Cannot allocate memory
       at java.base/java.lang.ProcessHandleImpl.getProcessPids0(Native Method)
       at java.base/java.lang.ProcessHandleImpl.children(ProcessHandleImpl.java:456)
       at java.base/java.lang.ProcessHandleImpl.children(ProcessHandleImpl.java:434)
       at PermissionTest.childrenWithPermission(PermissionTest.java:84)
       at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
       at java.base/java.lang.reflect.Method.invoke(Method.java:573)
       at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
       at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:599)
       at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:174)
       at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
       at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:822)
       at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:147)
       at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
       at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
       at java.base/java.util.ArrayList.forEach(ArrayList.java:1597)


Probably sysctl fails here, but it is not fully clear; it would help to change the exception so that the standard text is shown too in the exception message.

-------------

Commit messages:
 - JDK-8339487

Changes: https://git.openjdk.org/jdk/pull/20839/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20839&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8339487
  Stats: 4 lines in 2 files changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/20839.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20839/head:pull/20839

PR: https://git.openjdk.org/jdk/pull/20839