[#DOXIA-407] EmptyStackException when <dt> omitted - jira.codehaus.org

Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: 1.1.3
Fix Version/s: 1.4
Component/s: Module - Xdoc
Labels:
None

Testcase included:
yes
Number of attachments :
0

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.

EmptyStackException when <dt> omitted

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