Exception-----can't startup OSGI framework

mann

Hi,
As i m using BIRT Chart from a week. I wont to deploy ChartEngine on my webApplication
As I wont to display chart on my web Appliction
I try the given example with ChartEngine download,but I m getting this error

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Apr 3, 2008 4:01:51 PM org.eclipse.birt.chart.util.PluginSettings instance
WARNING: Exception
org.eclipse.birt.core.exception.BirtException: $NO-RB$ Cant startup the OSGI fra
mework
at org.eclipse.birt.core.framework.Platform.startup(P latform.java:89)
at org.eclipse.birt.chart.util.PluginSettings.instanc e(PluginSettings.ja
va:268)
at org.eclipse.birt.chart.util.PluginSettings.instanc e(PluginSettings.ja
va:248)
at ChartRenderingServlet.<init>(ChartRenderingServlet .java:71)
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(Unknown Sou
rce)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.apache.catalina.core.StandardWrapper.loadServl et(StandardWrapper.
java:1089)
at org.apache.catalina.core.StandardWrapper.allocate( StandardWrapper.jav
a:791)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperV
alve.java:127)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextV
alve.java:174)
at org.apache.catalina.authenticator.AuthenticatorBas e.invoke(Authentica
torBase.java:433)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.j
ava:127)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.j
ava:117)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineVal
ve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.jav
a:174)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java
:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11 ConnectionHandler.p
rocessConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.process Socket(PoolTcpEndpo
int.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThr ead.runIt(LeaderFol
lowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlR unnable.run(ThreadP
ool.java:689)
at java.lang.Thread.run(Unknown Source)
Caused by: org.eclipse.birt.core.exception.BirtException: $NO-RB$ Could not find
the Framework - [Ljava.lang.Object;@1f68272
at org.eclipse.birt.core.framework.osgi.OSGILauncher. startup(OSGILaunche
r.java:95)
at org.eclipse.birt.core.framework.Platform.startup(P latform.java:77)
... 24 more

---

and

---

type :Exception report

message :

description :The server encountered an internal error () that prevented it from fulfilling this request.

exception :

java.lang.NullPointerException
org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.getEnco ding(XMLLoadImpl.java:320)
org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XM LLoadImpl.java:125)
org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doL oad(XMLResourceImpl.java:179)
org.eclipse.emf.ecore.resource.impl.ResourceImpl.l oad(ResourceImpl.java:1094)
org.eclipse.birt.chart.model.impl.SerializerImpl.r ead(SerializerImpl.java:234)
ChartModels.loadChart(ChartModels.java:64)
ChartRenderingServlet.doGet(ChartRenderingServlet. java:145)
javax.servlet.http.HttpServlet.service(HttpServlet .java:690)
javax.servlet.http.HttpServlet.service(HttpServlet .java:803)
filters.ExampleFilter.doFilter(ExampleFilter.java: 102)


note The full stack trace of the root cause is available in the Apache Tomcat/5.5.26 logs.

---

what should I do?????

I added required Api in WEB-INF/lib directoty.
please help me?????
Can any body provide sm help that how to integrate chart Engine with WebApplication?

thanks
mann