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simple-xml NodeBuilder No Class Def Found Error on Raspberry Pi running Kura [message #1601606]

Thu, 05 February 2015 02:39

shauheen azami

Messages: 5
Registered: January 2015

Junior Member

Hi,

I have a bundle that is using SimpleXML Framework (mvnrepository: org.simpleframework/simple-xml). The jar is on Bundle-ClassPath, and is included in the build. The bundle works fine in emulator and everything works as expected.

However when I deploy the exported bundle on Raspberry Pi (It activates just fine, no errors and the jar does include the SimpleXML jar inside it) when the bundle is used, it throws,

java.lang.NoClassDefFoundError: Could not initialize class org.simpleframework.xml.stream.NodeBuilder

Has anyone encountered this issue or knows how to fix it?

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Re: simple-xml NodeBuilder No Class Def Found Error on Raspberry Pi running Kura [message #1603103 is a reply to message #1601606]

Fri, 06 February 2015 01:17

David Woodard

Messages: 420
Registered: July 2014

Senior Member

Hello,

How are you exporting your bundle from Eclipse? You may want to extract your exported bundle that you are deploying to the RPi and manually verify the jar file is there. If that looks okay, could you post the contents of your bundles Manifest file?

Thanks,
--Dave

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Re: simple-xml NodeBuilder No Class Def Found Error on Raspberry Pi running Kura [message #1603211 is a reply to message #1603103]

Fri, 06 February 2015 03:04

shauheen azami

Messages: 5
Registered: January 2015

Junior Member

Hi,

The export is done from eclipse (Deployable plugins and fragments), the build.properties has the simpleXML in bin.include, and yes, the bundle does include the jar file for simpleXML,

I have got it to work by having a SimpleXML bundle running on the Pi, and also Importing and exporting SimpleXML from my bundle. (I don't think this is the correct solution, as I don't want to have to expose the jar. But it is working!)

Here is the manifest:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Test Implementation
Bundle-SymbolicName: org.eclipse.kura.test.implementation
Bundle-Version: 1.0.0.qualifier
Bundle-RequiredExecutionEnvironment: JavaSE-1.7
Export-Package: org.simpleframework.xml,
 org.simpleframework.xml.convert,
 org.simpleframework.xml.core,
 org.simpleframework.xml.filter,
 org.simpleframework.xml.strategy,
 org.simpleframework.xml.stream,
 org.simpleframework.xml.transform,
 org.simpleframework.xml.util
Bundle-ClassPath: .,
 jar/org.simpleframework.simple-xml.2.3.jar
Import-Package: org.eclipse.kura.test.api,
 org.osgi.framework;version="1.7.0",
 org.osgi.service.component;version="1.2.0",
 org.simpleframework.xml,
 org.simpleframework.xml.convert,
 org.simpleframework.xml.core,
 org.simpleframework.xml.filter,
 org.simpleframework.xml.strategy,
 org.simpleframework.xml.stream,
 org.simpleframework.xml.transform,
 org.simpleframework.xml.util
Service-Component: OSGI-INF/component.xml
Require-Bundle: slf4j.api
Bundle-ActivationPolicy: lazy

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Re: simple-xml NodeBuilder No Class Def Found Error on Raspberry Pi running Kura [message #1604358 is a reply to message #1603211]

Fri, 06 February 2015 20:29

David Woodard

Messages: 420
Registered: July 2014

Senior Member

Hello,

I tried a very simple example and didn't have a problem referencing the jar on the bundle classpath. If you could provide a link to the jar that was causing the problem, I am happy to take a look. Your method would be useful if you had other bundles that needed access to the simple-xml packages. If only the one bundle needs simple-xml, then it is better to try and resolve the classpath issue.

Thanks,
--Dave

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