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https://issues.apache.org/jira/browse/DERBY-6704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14096964#comment-14096964
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Dag H. Wanvik commented on DERBY-6704:
--------------------------------------
Thanks for that data point, Knut. Another idea if this doesn't give us any more
hints, might be to have the parent process call jstack on the spawned process
before killing it if it hangs (or increase the time before it gets killed and
try to do it manually next time it hangs).
> Hang in AutoloadTest.spawnProcess:JDBCDriversEmbeddedTest on Mac/jdk7,8
> -----------------------------------------------------------------------
>
> Key: DERBY-6704
> URL: https://issues.apache.org/jira/browse/DERBY-6704
> Project: Derby
> Issue Type: Bug
> Reporter: Dag H. Wanvik
> Attachments: derby-6704.diff
>
>
> In our release tests for 10.11 we have seen this stack trace:
> {code}
>
> org.apache.derbyTesting.functionTests.tests.jdbcapi.AutoloadTest.spawnProcess:JDBCDriversEmbeddedTest
> 2701.548 s
> junit.framework.AssertionFailedError: Test process failed:Spawned
> org.apache.derbyTesting.functionTests.tests.jdbcapi.JDBCDriversEmbeddedTest
> exitCode=143
> STDOUT:
> ..
> at
> org.apache.derbyTesting.functionTests.tests.jdbcapi.AutoloadTest.spawnProcess(AutoloadTest.java:256)
> at org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:118)
> at
> org.apache.derbyTesting.junit.BaseJDBCTestCase.runBareOverridable(BaseJDBCTestCase.java:440)
> at
> org.apache.derbyTesting.junit.BaseJDBCTestCase.runBare(BaseJDBCTestCase.java:457)
> at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
> at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
> at junit.extensions.TestSetup.run(TestSetup.java:25)
> {code}
> presumably because the spawned process is killed by the test framework; it
> had been executing for 2701 second, but we don't have much insight into what
> happened to the subprocess because we don't collect its std our or std err.
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