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From "Sylwester Lachiewicz (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DOXIASITETOOLS-179) Report error line and column from Velocity runtime exception
Date Sun, 04 Mar 2018 19:29:00 GMT

     [ https://issues.apache.org/jira/browse/DOXIASITETOOLS-179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sylwester Lachiewicz updated DOXIASITETOOLS-179:
------------------------------------------------
    Attachment: velocity-exception-site.zip

> Report error line and column from Velocity runtime exception
> ------------------------------------------------------------
>
>                 Key: DOXIASITETOOLS-179
>                 URL: https://issues.apache.org/jira/browse/DOXIASITETOOLS-179
>             Project: Maven Doxia Sitetools
>          Issue Type: Improvement
>          Components: Site renderer
>            Reporter: Jan Krupička
>            Priority: Major
>              Labels: usability
>         Attachments: velocity-exception-site.zip
>
>
> I have a site page {{index.apt.vm}} which is a Velocity template:
> {noformat}
> My best index page
>   #set ($text = 'text')
>   #set ($text = $text.charAt(-1))
> {noformat}
> When building maven site, this template fails (of course) with a runtime exception. Also
the maven build fails (good) with the following output:
> {noformat}
> [ERROR] Error parsing My/site/path/index.apt.vm as a velocity template, using as text.
> [ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.6:site (default-site)
on project test-project: Error getting a parser for 'My/site/path/index.apt.vm'
> {noformat}
> This output is not much helpful and is a little misleading. Velocity throws an exception
with parsing error line and column. It would be nice to see this in maven error message so
it is easy to see where the problem is.
> I can see full stack trace with maven debug build (-X) but I would expect this type of
error to be reported in normal build.
> Related class and method:
> {{org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderDocument(DefaultSiteRenderer.java:381)}}
> Velocity method that throws useful exception with error description (line/column)
> {{org.apache.velocity.app.VelocityEngine.mergeTemplate(VelocityEngine.java:354)}}
> Velocity exception to catch and use:
> {{org.apache.velocity.exception.ParseErrorException}}
> Full stacktrace from debug output:
> {noformat}
> [ERROR] Error parsing My/site/path/index.apt.vm as a velocity template, using as text.
> org.apache.velocity.exception.MethodInvocationException: Invocation of method 'charAt'
in  class java.lang.String threw exception java.lang.StringIndexOutOfBoundsException: String
index out of range:
> -1 at d:\projects\test\tmp\test\src\site\apt\index.apt.vm[line 3, column 23]
>         at org.apache.velocity.runtime.parser.node.ASTMethod.handleInvocationException(ASTMethod.java:243)
>         at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:187)
>         at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
>         at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)
>         at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)
>         at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)
>         at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
>         at org.apache.velocity.Template.merge(Template.java:356)
>         at org.apache.velocity.Template.merge(Template.java:260)
>         at org.apache.velocity.app.VelocityEngine.mergeTemplate(VelocityEngine.java:354)
>         at org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderDocument(DefaultSiteRenderer.java:381)
>         at org.apache.maven.doxia.siterenderer.DoxiaDocumentRenderer.renderDocument(DoxiaDocumentRenderer.java:53)
>         at org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.render(DefaultSiteRenderer.java:337)
>         at org.apache.maven.plugins.site.render.SiteMojo.renderDoxiaDocuments(SiteMojo.java:262)
>         at org.apache.maven.plugins.site.render.SiteMojo.renderLocale(SiteMojo.java:168)
>         at org.apache.maven.plugins.site.render.SiteMojo.execute(SiteMojo.java:132)
>         at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
>         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
>         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: java.lang.StringIndexOutOfBoundsException: String index out of range: -1
>         at java.lang.String.charAt(String.java:658)
>         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.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
>         at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
>         at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
>         ... 36 more
> [INFO] ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO] ------------------------------------------------------------------------
> {noformat}



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