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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.log4j.helpers.PatternConverter.spacePad()
    2. Apache Log4j
      Category.log
      1. org.apache.log4j.helpers.PatternConverter.spacePad(PatternConverter.java:98)
      2. org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:71)
      3. org.apache.log4j.PatternLayout.format(PatternLayout.java:495)
      4. org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:292)
      5. org.apache.log4j.RollingFileAppender.subAppend(RollingFileAppender.java:225)
      6. org.apache.log4j.WriterAppender.append(WriterAppender.java:150)
      7. org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:221)
      8. org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:57)
      9. org.apache.log4j.Category.callAppenders(Category.java:194)
      10. org.apache.log4j.Category.forcedLog(Category.java:379)
      11. org.apache.log4j.Category.log(Category.java:844)
      11 frames
    3. Apache Commons Logging
      Log4JLogger.error
      1. org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:193)
      1 frame
    4. struts
      ActionServlet.init
      1. org.apache.struts.action.ActionServlet.init(ActionServlet.java:364)
      1 frame
    5. JavaServlet
      GenericServlet.init
      1. javax.servlet.GenericServlet.init(GenericServlet.java:168)
      1 frame
    6. servletunit.struts
      CactusStrutsTestCase.actionPerform
      1. servletunit.struts.CactusStrutsTestCase.getActionServlet(CactusStrutsTestCase.java:477)
      2. servletunit.struts.CactusStrutsTestCase.actionPerform(CactusStrutsTestCase.java:536)
      2 frames
    7. cz.muni.cba
      TestActionLogin.testSuccessfullLogin
      1. cz.muni.cba.detlib.actions.TestActionLogin.testSuccessfullLogin(TestActionLogin.java:61)
      1 frame
    8. Java RT
      DelegatingMethodAccessorImpl.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      3 frames
    9. org.apache.cactus
      AbstractWebTestCaller.doTest
      1. org.apache.cactus.internal.AbstractCactusTestCase.runBareServer(AbstractCactusTestCase.java:153)
      2. org.apache.cactus.internal.server.AbstractWebTestCaller.doTest(AbstractWebTestCaller.java:119)
      2 frames