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  1. Maven Doxia
  2. DOXIA-537

NullPointerException parsing table cell with single space

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.6
    • Fix Version/s: 1.7
    • Component/s: Module - Confluence
    • Labels:
      None

      Description

      I have chosen to use Confluence format to generate my maven site, primarily because of good table support.

      I have found that doxia-module-confluence falls over with a NullPointerException if an empty cell is represented as a single space.

      Confluence tables usually require this empty space, or they collapse the cell to be non-existant.

      Information pertaining to this failure is below.

      Let me know what more I can usefully provide.

      Kind regards, Robin.

      File: src/site/confluence/tables.confluence

      Here is a 3 column table with headers, one row, and data in every column:

      ||One||Two||Three||
      |1|2|3|

      Now there is no data in column Two

      ||One||Two||Three||
      |1||3|

      Now there is a space in column Two

      ||One||Two||Three||
      |1| |3|

      pom.xml excerpt

      </build>
      ...
          </plugins>
      ...
              <plugin>
                  <groupId>org.apache.maven.plugins</groupId>
                  <artifactId>maven-site-plugin</artifactId>
                  <version>3.4</version>
                  <dependencies>
                      <dependency>
                          <groupId>org.apache.maven.doxia</groupId>
                          <artifactId>doxia-module-confluence</artifactId>
                          <version>1.6</version>
                      </dependency>
                      <dependency>
                          <groupId>org.apache.maven.doxia</groupId>
                          <artifactId>doxia-module-markdown</artifactId>
                          <version>1.6</version>
                      </dependency>
                  </dependencies>
              </plugin>
          </plugins>
      </build>
      mvn -X clean site
      
      
      [ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.4:site (default-site) on project fitnesse-calypso: Error parsing '/Users/robin/tmp3/fitnesse-calypso/src/site/confluence/tables.confluence': line [15] null: ParseException: NullPointerException -> [Help 1]
      org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.4:site (default-site) on project fitnesse-calypso: Error parsing '/Users/robin/tmp3/fitnesse-calypso/src/site/confluence/tables.confluence': line [15] null
              at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
              at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
              at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
              at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
              at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
              at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
              at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
              at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
              at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
              at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
              at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
              at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
              at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
              at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
              at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:497)
              at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
              at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
              at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
              at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
      Caused by: org.apache.maven.plugin.MojoExecutionException: Error parsing '/Users/robin/tmp3/fitnesse-calypso/src/site/confluence/tables.confluence': line [15] null
              at org.apache.maven.plugins.site.render.SiteMojo.execute(SiteMojo.java:146)
              at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
              at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
              ... 20 more
      Caused by: org.apache.maven.doxia.siterenderer.RendererException: Error parsing '/Users/robin/tmp3/fitnesse-calypso/src/site/confluence/tables.confluence': line [15] null
              at org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderDocument(DefaultSiteRenderer.java:406)
              at org.apache.maven.doxia.siterenderer.DoxiaDocumentRenderer.renderDocument(DoxiaDocumentRenderer.java:51)
              at org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderModule(DefaultSiteRenderer.java:311)
              at org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.render(DefaultSiteRenderer.java:129)
              at org.apache.maven.plugins.site.render.SiteMojo.renderDoxiaDocuments(SiteMojo.java:261)
              at org.apache.maven.plugins.site.render.SiteMojo.renderLocale(SiteMojo.java:172)
              at org.apache.maven.plugins.site.render.SiteMojo.execute(SiteMojo.java:141)
              ... 22 more
      Caused by: org.apache.maven.doxia.parser.ParseException
              at org.apache.maven.doxia.module.confluence.ConfluenceParser.parse(ConfluenceParser.java:133)
              at org.apache.maven.doxia.DefaultDoxia.parse(DefaultDoxia.java:65)
              at org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderDocument(DefaultSiteRenderer.java:398)
              ... 28 more
      Caused by: java.lang.NullPointerException
              at org.apache.maven.doxia.module.confluence.parser.AbstractFatherBlock.traverse(AbstractFatherBlock.java:72)
              at org.apache.maven.doxia.module.confluence.parser.AbstractFatherBlock.traverse(AbstractFatherBlock.java:72)
              at org.apache.maven.doxia.module.confluence.parser.AbstractFatherBlock.traverse(AbstractFatherBlock.java:72)
              at org.apache.maven.doxia.module.confluence.ConfluenceParser.parse(ConfluenceParser.java:125)
              ... 30 more

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            • Assignee:
              rfscholte Robert Scholte
              Reporter:
              robinroos2 Robin Roos
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              Dates

              • Created:
                Updated:
                Resolved: