Test resourcehogs/serviceability/sa/ClhsdbRegionDetailsScanOopsForG1.java fails with
Attaching to process 9896, please wait...

 LingeredApp stdout: [];
 LingeredApp stderr: []
 LingeredApp exitValue = 0
----------System.err:(28/1581)*----------
 stdout: [ + scanoops 0x000000063c000000 0x000000063c200000
];
 stderr: [ + scanoops 0x000000063c000000 0x000000063c200000
]
 exitValue = -1

java.lang.RuntimeException: Test ERROR java.lang.RuntimeException: '\\[Ljava/lang/String' missing from stdout/stderr

at ClhsdbRegionDetailsScanOopsForG1.main(ClhsdbRegionDetailsScanOopsForG1.java:87)
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.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.lang.RuntimeException: '\\[Ljava/lang/String' missing from stdout/stderr

at jdk.test.lib.process.OutputAnalyzer.shouldMatch(OutputAnalyzer.java:308)
at ClhsdbLauncher.runCmd(ClhsdbLauncher.java:163)
at ClhsdbLauncher.run(ClhsdbLauncher.java:200)
at ClhsdbRegionDetailsScanOopsForG1.main(ClhsdbRegionDetailsScanOopsForG1.java:83)
... 6 more