[jira] [Commented] (CAMEL-4171) Groovy language - classNotFoundException in OSGi environment

["Claus Ibsen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CAMEL-4171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13480975#comment-13480975 ] 

Claus Ibsen commented on CAMEL-4171:
------------------------------------

Well OSGi is often hard to use, and this is such a case.

Your application that uses groovy would in theory need to import all the osgi packages you application uses.  So what you can do is to instruct the bundle to use dynamic imports, then it works:
{code:xml}
                    <instructions>
                        <Bundle-SymbolicName>${project.artifactId}</Bundle-SymbolicName>
                        <Bundle-Description>${project.description}</Bundle-Description>
	  	        <DynamicImport-Package>*</DynamicImport-Package>
                        <Private-Package>org.apache.servicemix.examples.camel</Private-Package>
                    </instructions>
{code}


                
> Groovy language - classNotFoundException in OSGi environment
> ------------------------------------------------------------
>
>                 Key: CAMEL-4171
>                 URL: https://issues.apache.org/jira/browse/CAMEL-4171
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core, camel-groovy, osgi
>    Affects Versions: 2.7.2
>            Reporter: Sergey Zhemzhitsky
>            Assignee: Claus Ibsen
>            Priority: Minor
>              Labels: camel-groovy
>             Fix For: 2.8.0
>
>         Attachments: camel-osgi.zip
>
>
> The problem is in the following method of the GroovyLanguage
> @SuppressWarnings("unchecked")
> protected Class<Script> parseExpression(String expression) {
>     return new GroovyClassLoader().parseClass(expression);
> }
> It uses the default constructor to create GroovyClassLoader, which uses Thread context classloader, which may not be equal to the classloader of the bundle where the camel context is defined.
> Caused by: java.lang.NoClassDefFoundError: groovy/lang/Script
> 	at java.lang.ClassLoader.defineClass1(Native Method)[:1.6.0_24]
> 	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)[:1.6.0_24]
> 	at java.lang.ClassLoader.defineClass(ClassLoader.java:616)[:1.6.0_24]
> 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)[:1.6.0_24]
> 	at groovy.lang.GroovyClassLoader.access$300(GroovyClassLoader.java:55)
> 	at groovy.lang.GroovyClassLoader$ClassCollector.createClass(GroovyClassLoader.java:519)
> 	at groovy.lang.GroovyClassLoader$ClassCollector.onClassNode(GroovyClassLoader.java:536)
> 	at groovy.lang.GroovyClassLoader$ClassCollector.call(GroovyClassLoader.java:540)
> 	at org.codehaus.groovy.control.CompilationUnit$11.call(CompilationUnit.java:747)
> 	at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:932)
> 	at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:509)
> 	at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:487)
> 	at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:464)
> 	at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:306)
> 	at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:287)
> 	at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:267)
> 	at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:214)
> 	at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:224)
> 	at org.apache.camel.language.groovy.GroovyLanguage.parseExpression(GroovyLanguage.java:44)
> 	at org.apache.camel.language.groovy.GroovyLanguage.createExpression(GroovyLanguage.java:38)
> 	at org.apache.camel.language.groovy.GroovyLanguage.createExpression(GroovyLanguage.java:27)
> 	at org.apache.camel.component.language.LanguageProducer.process(LanguageProducer.java:41)[68:org.apache.camel.camel-core:2.6.0.fuse-01-09]
> 	at org.apache.camel.impl.converter.AsyncProcessorTypeConverter$ProcessorToAsyncProcessorBridge.process(AsyncProcessorTypeConverter.java:50)[68:org.apache.camel.camel-core:2.6.0.fuse-01-09]
> 	... 92 more
> Caused by: java.lang.ClassNotFoundException: groovy.lang.Script
> 	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)[:1.6.0_24]
> 	at java.security.AccessController.doPrivileged(Native Method)[:1.6.0_24]
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)[:1.6.0_24]
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)[:1.6.0_24]
> 	at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:696)[134:groovy-all:1.7.5]
> 	at groovy.lang.GroovyClassLoader$InnerLoader.loadClass(GroovyClassLoader.java:449)
> 	at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:793)[134:groovy-all:1.7.5]
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:248)[:1.6.0_24]
> 	... 115 more

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