[jbosstools-issues] [JBoss JIRA] Commented: (JBIDE-9287) NullPointerException in org.jboss.tools.cdi.seam.config.core.xml.SAXParser

[Viacheslav Kabanovich (JIRA)]

    [ https://issues.jboss.org/browse/JBIDE-9287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12612126#comment-12612126 ] 

Viacheslav Kabanovich commented on JBIDE-9287:
----------------------------------------------

We use XMLReaderFactory.createXMLReader() to create XMLReader instance and expect that it will find it in classpath. However, Eclipse has many class loaders and org.xml.sax.helpers.NewInstance class be loaded by a class loader that does not have a parser implementation. We have not provided explicit dependency on a plugin that has it. If our SAXParser is invoked through plugin which has no parser implementation in all dependency its tree, then XMLReaderFactory.createXMLReader() will fail. It seems that the probability of it is very low, so that we have to decide if we should create that explicit dependency (by the way, our test plugins have it); or just log message if failure happens.

> NullPointerException in org.jboss.tools.cdi.seam.config.core.xml.SAXParser
> --------------------------------------------------------------------------
>
>                 Key: JBIDE-9287
>                 URL: https://issues.jboss.org/browse/JBIDE-9287
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: cdi (jsr-299)
>    Affects Versions: 3.3.0.M2
>            Reporter: Viacheslav Kabanovich
>            Assignee: Viacheslav Kabanovich
>             Fix For: 3.3.0.M3
>
>
> java.lang.NullPointerException
> 	at
> org.jboss.tools.cdi.seam.config.core.xml.SAXParser.parse(SAXParser.java:66)
> 	at
> org.jboss.tools.cdi.seam.config.core.scanner.SeamDefinitionBuilder.createDefinition(SeamDefinitionBuilder.java:71)
> 	at
> org.jboss.tools.cdi.seam.config.core.CDISeamConfigExtension.buildDefinitions(CDISeamConfigExtension.java:118)
> 	at org.jboss.tools.cdi.core.CDICoreBuilder.build(CDICoreBuilder.java:201)
> 	at
> org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:728)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at
> org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
> 	at
> org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239)
> 	at
> org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at
> org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295)
> 	at
> org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351)
> 	at
> org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374)
> 	at
> org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
> 	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
> 	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

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