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https://issues.apache.org/jira/browse/DOXIASITETOOLS-179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16385308#comment-16385308
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Michael Osipov commented on DOXIASITETOOLS-179:
-----------------------------------------------
I do see the error line:
{noformat}
[INFO] Rendering 1 Doxia document: 1 apt
[ERROR] Method charAt threw exception for reference $text in template
C:\Users\mosipov\Downloads\velocity-exception-site\src\site\apt\index.apt.vm at
[20,17]
[ERROR] Error parsing
C:\Users\mosipov\Downloads\velocity-exception-site\src\site\apt\index.apt.vm as
a velocity template, using as text.
[INFO] ------------------------------------------
{noformat}
[~slachiewicz], thanks for the example!
> Report error line and column from Velocity runtime exception
> ------------------------------------------------------------
>
> Key: DOXIASITETOOLS-179
> URL: https://issues.apache.org/jira/browse/DOXIASITETOOLS-179
> Project: Maven Doxia Sitetools
> Issue Type: Improvement
> Components: Site renderer
> Reporter: Jan Krupička
> Priority: Major
> Labels: usability
> Attachments: velocity-exception-site.zip
>
>
> I have a site page {{index.apt.vm}} which is a Velocity template:
> {noformat}
> My best index page
> #set ($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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