[jira] [Created] (UIMA-6015) UIMA-DUCC: Uima version detection not working

["Jerry Cwiklik (JIRA)" <de...@uima.apache.org>]

Jerry Cwiklik created UIMA-6015:
-----------------------------------

             Summary: UIMA-DUCC: Uima version detection not working
                 Key: UIMA-6015
                 URL: https://issues.apache.org/jira/browse/UIMA-6015
             Project: UIMA
          Issue Type: Bug
          Components: DUCC
            Reporter: Jerry Cwiklik
            Assignee: Jerry Cwiklik
             Fix For: 3.0.0-Ducc


Before deploying a child process, an agent tries to determine which version of uima user wants to run with. It takes user specified classpath and loads the jars and resources into a Classloader. It than switches context and using the classloader tries to instantiate UimaVersion class from uima-core.jar. The bug is that an agent tries to load the jar as user ducc. When the jar is located in a place which is not readable to ducc, the operation fails with:

java.lang.ClassNotFoundException: org.apache.uima.impl.UimaVersion
        at java.net.URLClassLoader.findClass(URLClassLoader.java:610)
        at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:925)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:870)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:853)
        at
org.apache.uima.ducc.agent.launcher.DuccCommandExecutor.getDeployableCommandLine(DuccCommandExecutor.java:819)
        at
org.apache.uima.ducc.agent.launcher.DuccCommandExecutor.exec(DuccCommandExecutor.java:142)
        at
org.apache.uima.ducc.agent.launcher.CommandExecutor.call(CommandExecutor.java:226)
        at
org.apache.uima.ducc.agent.launcher.CommandExecutor.call(CommandExecutor.java:36)
        at java.util.concurrent.FutureTask.run(FutureTask.java:277)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1160)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.lang.Thread.run(Thread.java:812)



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