[xwiki-devs] Component and third party jar's

23 Jul 2013

      Hello,
I currently developing an additional component, this component need 3rd 
party jars to run.

I have included my project in Eclipse, where I stored the jars in the 
build path.
To create the jar with Maven works without error.

Whenever I install my component in xwiki.basedir {} / WEB-INF/lib, and 
then try to execute this in Velocity in a page I get the following error 
displayed:

Caused by: org.apache.velocity.exception.MethodInvocationException: Invocation of method 'createProjectPages' in  class com.acme.internal.BlueAntComponentScriptService threw exception java.lang.NoClassDefFoundError: org/apache/commons/discovery/tools/DiscoverSingleton at xwiki:BlueAnt Space.WebHome[line 2, column 19]
	at org.apache.velocity.runtime.parser.node.ASTMethod.handleInvocationException(ASTMethod.java:261)
	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.render(ASTReference.java:369)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:228)
	... 106 more
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/discovery/tools/DiscoverSingleton
	at org.apache.axis.components.logger.LogFactory$1.run(LogFactory.java:45)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.apache.axis.components.logger.LogFactory.getLogFactory(LogFactory.java:41)
	at org.apache.axis.components.logger.LogFactory.<clinit>(LogFactory.java:33)
	at org.apache.axis.handlers.BasicHandler.<clinit>(BasicHandler.java:43)
	at org.apache.axis.client.Service.getAxisClient(Service.java:104)
	at org.apache.axis.client.Service.<init>(Service.java:113)
	at net.proventis.axis.blueant.BaseServiceLocator.<init>(BaseServiceLocator.java:12)
	at com.acme.internal.ClientTest.<init>(ClientTest.java:41)
	at com.acme.internal.BlueAntDefaultComponent.createProjectPages(BlueAntDefaultComponent.java:73)
	at com.acme.internal.BlueAntComponentScriptService.createProjectPages(BlueAntComponentScriptService.java:50)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.velocity.util.introspection.UberspectImpl$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)
	... 110 more
Caused by: java.lang.ClassNotFoundException: org.apache.commons.discovery.tools.DiscoverSingleton
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
	... 128 more

I've tried to make the jars available via the command:

mvn install:install-file -Dfile=src\main\resources\axis.jar 
-DgroupId=axis -DartifactId=axis -Dversion=1 -Dpackaging=jar
...
...
...

But this has not helped.

My pom file looks like:

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.xwiki.commons</groupId>
<artifactId>xwiki-commons-component-archetype</artifactId>
   <version>3.3-milestone-2</version>
   <name>XWiki BlueAnt Component</name>
   <description>XWiki BlueAnt Component</description>
   <properties>
<platform.core.version>3.3-milestone-2</platform.core.version>
   </properties>
   <build>
     <plugins>
       <!-- plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
           <source>1.6</source>
           <target>1.6</target>
         </configuration>
       </plugin -->
       <plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
           <configuration>
<compilerVersion>1.5</compilerVersion>
             <source>1.5</source>
             <target>1.5</target>
           </configuration>
         </plugin>
     </plugins>
   </build>
   <dependencies>
     <dependency>
       <groupId>org.xwiki.commons</groupId>
<artifactId>xwiki-commons-component-default</artifactId>
<version>${platform.core.version}</version>
     </dependency>
     <!-- Only needed if some of the component's APIs must be made 
visible to scripting in wiki pages -->
     <dependency>
       <groupId>org.xwiki.commons</groupId>
<artifactId>xwiki-commons-script</artifactId>
<version>${platform.core.version}</version>
     </dependency>
     <!-- Testing dependencies -->
     <dependency>
         <groupId>org.xwiki.commons</groupId>
<artifactId>xwiki-commons-test</artifactId>
<version>${platform.core.version}</version>
         <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>axis</groupId>
       <artifactId>axis</artifactId>
       <version>1.0</version>
       <type>jar</type>
       <scope>system</scope>
<systemPath>D:\Entwicklung\JAVA\Maven\TestProject\example\src\main\resources\axis.jar</systemPath>
     </dependency>

     ... and for all other third party jars

   </dependencies>
</project>

Can anyone help a desperate trainee? :)

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