Problem deploying java event handlers!

Hello, 
 
I'm having some problems deploying one java event handler that i have made. The event handler works perfectly when I run it via the eclipse report designer. I place the event handlers and the design in two separete projects like mentioned in one tutorial/example and then i run them, no problem. 
 
But when i try to deploy them via netbeans/tomcat i get one exception, and i dont know how to fix it. 
 
I have used the code from the examples, it works fine with other reports but not when using event handlers. 
 
<a class='bbc_url' href='http://wiki.eclipse.org/Servlet_Example_(BIRT)_2.1'>Servlet Example (BIRT) 2.1 - Eclipsepedia</a> 
 
root cause 
 
java.lang.NoClassDefFoundError: org/eclipse/core/runtime/CoreException 
org.eclipse.birt.report.engine.api.impl.ReportEngine.<init>(ReportEngine.java:104) 
org.eclipse.birt.report.engine.api.impl.ReportEngineFactory.createReportEngine(ReportEngineFactory.java:13) 
BirtEngine.getBirtEngine(BirtEngine.java:79) 
BirtServlet.doGet(BirtServlet.java:63) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
 
 
root cause 
 
java.lang.ClassNotFoundException: org.eclipse.core.runtime.CoreException 
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387) 
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233) 
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) 
org.eclipse.birt.report.engine.api.impl.ReportEngine.<init>(ReportEngine.java:104) 
org.eclipse.birt.report.engine.api.impl.ReportEngineFactory.createReportEngine(ReportEngineFactory.java:13) 
BirtEngine.getBirtEngine(BirtEngine.java:79) 
BirtServlet.doGet(BirtServlet.java:63) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
 
 
The exception is generated when i add org.eclipse.birt.report.engine_2.3.1.v20080918.jar in the libraries and then try to run. 
Even if i dont call the handlers i get the exception:/ 
 
Any idea what i'm doing wrong?:/

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Comments

JasonW

Do not put this
org.eclipse.birt.report.engine_2.3.1.v20080918.jar
in the lib folder or the classpath. OSGi will take care of that.
Modify that example to either set the parent classloader or add to the classpath.

//set parent classloader
config.getAppContext().put(EngineConstants.APPCONTEXT_CLASSLOADER_KEY, yourclass.class.getClassLoader());

//add to the classpath
config.getAppContext().put(EngineConstants.WEBAPP_CLASSPATH_KEY, "c:/jars/mjo.jar");
Platform.startup( config );

Jason

Dimman

Jason, thanks for the reply!

It seems to work if i remove the file you told me.
But i'm using the
import org.eclipse.birt.report.engine.content.IImageContent;

in one if case

if( image.getImageSource() == IImageContent.IMAGE_EXPRESSION)

so if i remove the file i have to remove the two things mentioned above.
If i dont remove them my app generates exceptions about the missing file.

But maybee i dont have to worry caus even if i remove the import/if
my app works:/

Thanks again for the reply:)