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  1. Maven Doxia
  2. DOXIA-407

EmptyStackException when <dt> omitted

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 1.1.3
    • 1.4
    • Module - Xdoc
    • None

    Description

      If the <dt> tag is missing from a definition list <dl> element, for example as below:

      <?xml version="1.0"?>
      <document url="doxia_test.html">
        <body>
          <section name="Section">
            <subsection name="Subsection">
              <dl>
                 <!-- <dt>dt</dt> -->
                 <dd>dd</dd>
              </dl>
            </subsection>
          </section>
        </body>
      </document>
      

      and the output format is PDF then the plugin crashes with EmptyStackException:

      [INFO] Trace
      java.lang.reflect.UndeclaredThrowableException
              at $Proxy0.body_(Unknown Source)
              at org.apache.maven.doxia.module.xdoc.XdocParser.handleEndTag(XdocParser.java:256)
              at org.apache.maven.doxia.parser.AbstractXmlParser.parseXml(AbstractXmlParser.java:217)
              at org.apache.maven.doxia.parser.AbstractXmlParser.parse(AbstractXmlParser.java:137)
              at org.apache.maven.doxia.parser.XhtmlBaseParser.parse(XhtmlBaseParser.java:90)
              at org.apache.maven.doxia.module.xdoc.XdocParser.parse(XdocParser.java:104)
              at org.apache.maven.doxia.DefaultDoxia.parse(DefaultDoxia.java:63)
              at org.apache.maven.doxia.book.services.renderer.AbstractITextBookRenderer.renderSection(AbstractITextBookRenderer.java:264)
              at org.apache.maven.doxia.book.services.renderer.AbstractITextBookRenderer.renderChapter(AbstractITextBookRenderer.java:219)
              at org.apache.maven.doxia.book.services.renderer.AbstractITextBookRenderer.renderBook(AbstractITextBookRenderer.java:148)
              at org.apache.maven.doxia.book.DefaultBookDoxia.renderBook(DefaultBookDoxia.java:142)
              at org.apache.maven.doxia.plugin.DoxiaRenderBooksMojo.execute(DoxiaRenderBooksMojo.java:265)
              at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
              at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
              at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:569)
              at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:539)
              at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
              at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
              at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
              at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
              at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
              at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
              at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
              at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
              at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
              at java.lang.reflect.Method.invoke(Method.java:597)
              at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
              at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
              at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
              at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
      Caused by: java.lang.reflect.InvocationTargetException
              at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
              at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
              at java.lang.reflect.Method.invoke(Method.java:597)
              at org.apache.maven.doxia.sink.PipelineSink.invoke(PipelineSink.java:76)
              ... 31 more
      Caused by: java.util.EmptyStackException
              at java.util.Stack.peek(Stack.java:85)
              at java.util.Stack.pop(Stack.java:67)
              at org.apache.maven.doxia.module.itext.SinkActionContext.release(SinkActionContext.java:145)
              at org.apache.maven.doxia.module.itext.ITextSink.body_(ITextSink.java:291)
              ... 36 more
      

      This is quite tricky to debug; it would help if the plugin gave some context - or better yet, detected the missing element.

      Note that xdoc output does not crash, nor does it report an error.

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            rfscholte Robert Scholte
            sebb Sebb
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            Dates

              Created:
              Updated:
              Resolved: