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From "Robin Roos (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DOXIA-537) NullPointerException parsing table cell with single space
Date Tue, 19 Jan 2016 07:35:39 GMT

    [ https://issues.apache.org/jira/browse/DOXIA-537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15106384#comment-15106384
] 

Robin Roos commented on DOXIA-537:
----------------------------------

As for the test case, I suggest adding the following content to:

http://svn.apache.org/repos/asf/maven/doxia/doxia/trunk/doxia-modules/doxia-module-confluence/src/test/site/confluence/page.confluence

||one||space||three||
|foo| |baz|

That should trigger the exception.

> NullPointerException parsing table cell with single space
> ---------------------------------------------------------
>
>                 Key: DOXIA-537
>                 URL: https://issues.apache.org/jira/browse/DOXIA-537
>             Project: Maven Doxia
>          Issue Type: Bug
>          Components: Module - Confluence
>    Affects Versions: 1.6
>            Reporter: Robin Roos
>
> 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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