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https://issues.apache.org/jira/browse/DERBY-5514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13156618#comment-13156618
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Knut Anders Hatlen commented on DERBY-5514:
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> If I added the following line to NetworkServerTestSetup.startSeparateProcess()
> al.add("-Demma.verbosity.level=silent");
> I didn't have to change the assert in SecureServerTest.
I spoke too soon. This removed the unexpected line "EMMA: collecting runtime
coverage data ..." from the output, but it still didn't show the security
manager information expected by the test (because the security manager is not
used), so the assert still fails.
> SecureServerTest doesn't play nice with EMMA: AccessControlException
> --------------------------------------------------------------------
>
> Key: DERBY-5514
> URL: https://issues.apache.org/jira/browse/DERBY-5514
> Project: Derby
> Issue Type: Bug
> Affects Versions: 10.9.0.0
> Reporter: Dag H. Wanvik
> Attachments: derby-5514-1.diff, derby-5514-1.stat
>
>
> When running SecureServerTest with jars instrumented with EMMA using the ant
> emma-all target, I see:
> [junit] (net)derbynet.SecureServerTest.testServerStartup used 8475 ms
> junit.framework.TestListener: endTest(testServerStartup)
> [junit] START-SPAWNED:SpawnedNetworkServer ERROR OUTPUT:
> [junit] java.security.policy: error adding Entry:
> [junit] java.net.MalformedURLException: no protocol:
> /export/home/dag/java/sb/sb1/tools/java/emma.jar
> [junit] java.security.AccessControlException: access denied
> (java.io.FilePermission coverage.ec read)
> [junit] at
> java.security.AccessControlContext.checkPermission(AccessControlContext.java:374)
> [junit] at
> java.security.AccessController.checkPermission(AccessController.java:546)
> [junit] at
> java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
> [junit] at java.lang.SecurityManager.checkRead(SecurityManager.java:871)
> [junit] at java.io.File.exists(File.java:731)
> [junit] at
> com.vladium.emma.data.DataFactory.persist(DataFactory.java:525)
> [junit] at
> com.vladium.emma.data.DataFactory.persist(DataFactory.java:86)
> [junit] at
> com.vladium.emma.rt.RTCoverageDataPersister.dumpCoverageData(RTCoverageDataPersister.java:54)
> [junit] at com.vladium.emma.rt.RTExitHook.run(RTExitHook.java:32)
> [junit] at java.lang.Thread.run(Thread.java:662)
> [junit] Exception in thread "EMMA shutdown handler thread"
> java.lang.RuntimeException: EMMA failed to dump coverage data:
> java.security.AccessControlException: access denied (java.io.FilePermission
> coverage.ec read)
> [junit] at
> com.vladium.emma.rt.RTCoverageDataPersister.dumpCoverageData(RTCoverageDataPersister.java:71)
> [junit] at com.vladium.emma.rt.RTExitHook.run(RTExitHook.java:32)
> [junit] at java.lang.Thread.run(Thread.java:662)
> [junit] END-SPAWNED :SpawnedNetworkServer ERROR OUTPUT:
> This is presumably because the test spawns a server which runs with the
> default server policy.
> Another thing is that is seems dangerous to let the spawned process write to
> EMMA's "coverage.ec", since we don't know when the parent process will write
> to it. This behavior could be what's been causing our corrutions in the EMMA
> runs earlier. The missing permissions just highlight what's happening.
> In this case the spawned process was started with this command line (I
> instrumented the code):
> XXX server startup command = /usr/jdk/instances/jdk1.6.0/jre/bin/java
> -classpath /<my sandbox>/tools/java/emma.jar:/<my
> sandbox>/jars/sane/derbyTesting.jar:/<my
> sandbox>/jars/emma/lib/derbyclient.jar:/<my
> sandbox>/jars/emma/lib/derbynet.jar:/<my
> sandbox>/jars/emma/lib/derby.jar:/<my
> sandbox>/jars/emma/lib/derbytools.jar:/<my
> sandbox>/jars/emma/lib/derbyrun.jar:/<my
> sandbox>/tools/java/junit.jar:/usr/share/lib/ant/ant-launcher.jar:/usr/share/lib/ant/ant.jar:/usr/share/lib/ant/ant-junit.jar
> org.apache.derby.drda.NetworkServerControl start -h localhost -p 1527
> Possible approaches:
> run the spawned VMs with plain jars (downside: we won't get coverage
> for those)
> run the spawned with a special default policy file when we run with
> EMMA ++
> run the spawned VM with -noSecurityManager if with EMMA jars
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