Hi,

I am developing several gadgets for a WSO2 UES Dashboard and I need call a
custom OSGi service bundle that I developed, within the jaggery code. When
I try to do that using Jaggery carbon module, it gives me the following
fault output.

I copied the generated bundles to the drop-ins folder also. You can find
the source code of the bundles on my github
repo<https://github.com/kaviththiranga/qaportalconnectorapi>.
I followed OSGi declarative services approach to create the service.

What should be the cause of this problem? After some research, I could see
several answers stating that this is caused by the starting order of the
bundles. If it is so, how can I overcome it?

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Here is the code from the jag file.

<%
response.addHeader("Content-Type", "application/json");

var carbon = require('carbon');
var qaPortal =
carbon.server.osgiService('org.wso2.carbon.utility.qaportal.QAPortal');
var products =qaPortal.getAllProducts();
print(products);
%>

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[Console output]

[2014-02-10 16:11:12,947] ERROR
{org.jaggeryjs.scriptengine.engine.RhinoEngine} -
org.mozilla.javascript.WrappedException: Wrapped
java.lang.NullPointerException (osgi#9)
[2014-02-10 16:11:12,947] ERROR
{org.jaggeryjs.jaggery.core.manager.WebAppManager} -
org.mozilla.javascript.WrappedException: Wrapped
java.lang.NullPointerException (osgi#9)
org.jaggeryjs.scriptengine.exceptions.ScriptException:
org.mozilla.javascript.WrappedException: Wrapped
java.lang.NullPointerException (osgi#9)
    at
org.jaggeryjs.scriptengine.engine.RhinoEngine.execScript(RhinoEngine.java:582)
    at
org.jaggeryjs.scriptengine.engine.RhinoEngine.exec(RhinoEngine.java:280)
    at
org.jaggeryjs.jaggery.core.manager.WebAppManager.execute(WebAppManager.java:432)
    at
org.jaggeryjs.jaggery.core.JaggeryServlet.doGet(JaggeryServlet.java:24)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:735)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at
org.jaggeryjs.jaggery.core.JaggeryFilter.doFilter(JaggeryFilter.java:21)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at
org.wso2.carbon.tomcat.ext.valves.CompositeValve.invoke(CompositeValve.java:177)
    at
org.wso2.carbon.tomcat.ext.valves.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:161)
    at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
    at
org.wso2.carbon.tomcat.ext.valves.CarbonContextCreatorValve.invoke(CarbonContextCreatorValve.java:57)
    at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
    at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1653)
    at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:662)
Caused by: org.mozilla.javascript.WrappedException: Wrapped
java.lang.NullPointerException (osgi#9)
    at
org.mozilla.javascript.Context.throwAsScriptRuntimeEx(Context.java:1754)
    at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:148)
    at
org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:225)
    at org.mozilla.javascript.optimizer.OptRuntime.call1(OptRuntime.java:32)
    at org.mozilla.javascript.gen.osgi_7._c_anonymous_2(osgi:9)
    at org.mozilla.javascript.gen.osgi_7.call(osgi)
    at org.mozilla.javascript.optimizer.OptRuntime.call1(OptRuntime.java:32)
    at
org.jaggeryjs.rhino.QA_Reports.c1._c_script_0(/QA-Reports//test.jag:5)
    at org.jaggeryjs.rhino.QA_Reports.c1.call(/QA-Reports//test.jag)
    at
org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:394)
    at
org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3091)
    at org.jaggeryjs.rhino.QA_Reports.c1.call(/QA-Reports//test.jag)
    at org.jaggeryjs.rhino.QA_Reports.c1.exec(/QA-Reports//test.jag)
    at
org.jaggeryjs.scriptengine.engine.RhinoEngine.execScript(RhinoEngine.java:577)
    ... 31 more
Caused by: java.lang.NullPointerException
    at
org.wso2.carbon.context.PrivilegedCarbonContext.getOSGiService(PrivilegedCarbonContext.java:447)
    at sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:126)
    ... 43 more

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------


Thanks
-- 
*Kavith Lokuhewage*
Software Engineer
WSO2 Inc. - http://wso2.com
lean . enterprise . middleware
Mobile - +9477-9-145-123 | +9471-455-6-401
Linkedin <http://www.linkedin.com/pub/kavith-lokuhewage/49/473/419>
Twitter<https://twitter.com/KavithThiranga>
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