NullPointException when i drag portlet

Hello everyone,
I insert 2 portlet in a user defined canvas. And i try to drag these portlets.
I see the log file, sometime I can catch nullpointexception as follows (I log the data paramHandler.getParameter("canvas") in MashboardServlet.java):

Sometimes I have got another NullpointException:

paramHandler.getParameter::{"name": "test", "type": "user", "portletRefs": {"portletRef": [{"ref": "engadget", "row": 0, "col": 2}]}}
paramHandler.getParameter::{"name": "test", "type": "user", "portletRefs": {"portletRef": [{"ref": "engadget", "row": 0, "col": 2}]}}
- Servlet.service() for servlet MashboardAJAXServlet threw exception
java.lang.NullPointerException
at com.sun.xml.bind.v2.runtime.output.Encoded.set(Encoded.java:29)
at com.sun.xml.bind.v2.runtime.output.UTF8XmlOutput.writeName(UTF8XmlOutput.java:185)
at com.sun.xml.bind.v2.runtime.output.UTF8XmlOutput.endTag(UTF8XmlOutput.java:235)
at com.sun.xml.bind.v2.runtime.output.NamespaceContextImpl$Element.endElement(NamespaceContextImpl.java:458)
at com.sun.xml.bind.v2.runtime.XMLSerializer.endElement(XMLSerializer.java:292)
at com.sun.xml.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(SingleElementNodeProperty.java:115)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:286)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:663)
at com.sun.xml.bind.v2.runtime.property.ArrayElementNodeProperty.serializeItem(ArrayElementNodeProperty.java:29)
at com.sun.xml.bind.v2.runtime.property.ArrayElementProperty.serializeListBody(ArrayElementProperty.java:132)
at com.sun.xml.bind.v2.runtime.property.ArrayERProperty.serializeBody(ArrayERProperty.java:116)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:286)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsSoleContent(XMLSerializer.java:571)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeRoot(ClassBeanInfoImpl.java:276)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsRoot(XMLSerializer.java:472)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:301)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:230)
at javax.xml.bind.helpers.AbstractMarshallerImpl.marshal(AbstractMarshallerImpl.java:75)
at com.actuate.mashboard.ajax.MashboardServlet.saveUserCanvasesToServer(MashboardServlet.java:303)
at com.actuate.mashboard.ajax.MashboardServlet.doSaveOperation(MashboardServlet.java:120)
at com.actuate.mashboard.ajax.MashboardServlet.handleServletRequest(MashboardServlet.java:50)
at com.actuate.reportcast.servlets.AcServlet.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:482)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:136)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:711)
at java.lang.Thread.run(Thread.java:619)
paramHandler.getParameter::{"name": "test", "type": "user", "portletRefs": {"portletRef": [{"ref": "engadget", "row": 0, "col": 2}, {"ref": "weather_r", "row": 1, "col": 2}]}}

Can someone tell me the reason?
Thanks a lot for your answer!!

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Comments

kiki

Just a moment, I have got ArrayIndexOutOfBoundsException, after that, when i try to drag portlets, this exception appears always and the user's canvas cann't be saved.

- Servlet.service() for servlet MashboardAJAXServlet threw exception
java.lang.ArrayIndexOutOfBoundsException: -1
at com.sun.xml.bind.v2.util.CollisionCheckStack.pushNocheck(CollisionCheckStack.java:85)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsRoot(XMLSerializer.java:465)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:301)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:230)
at javax.xml.bind.helpers.AbstractMarshallerImpl.marshal(AbstractMarshallerImpl.java:75)
at com.actuate.mashboard.ajax.MashboardServlet.saveUserCanvasesToServer(MashboardServlet.java:303)
at com.actuate.mashboard.ajax.MashboardServlet.doSaveOperation(MashboardServlet.java:120)
at com.actuate.mashboard.ajax.MashboardServlet.handleServletRequest(MashboardServlet.java:50)
at com.actuate.reportcast.servlets.AcServlet.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:482)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:136)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:711)
at java.lang.Thread.run(Thread.java:619)
paramHandler.getParameter::{"name": "test", "type": "user", "portletRefs": {"portletRef": [{"ref": "weather_r", "row": 0, "col": 2}]}}

from the log of paramHandler.getParameter("canvas"), I have found, there is a portlet to disappear automatically.
It is strange. Have someone this problem?

bhanley

Can you post your mashconfig file for the user that is logged in when you hit these exceptions?

Thanks.

kiki

my mashconfig file is:
<?xml version="1.0" encoding="UTF-8"?>

<mashConfig version="2.0">

<navItems>
<navItem label="N3" id="nav_3">
<body urlType="shared" url="portal.jsp?canvasName=Blank&canvasType=global" />
</navItem>

</navItems>

<portlets>


<portlet id="weather_r" title="Current Radar" img="radar.gif"
imgalt="Current Radar for Boston, MA">
<content iframe="true" urlType="absolute" url="http://mobile.weather.gov/radarlp.php?radar=kbox" />
<size width="50" height="250" />
</portlet>

<portlet id="engadget" title="Latest Tech News from Engadget" img="tbl.gif" imgalt="Latest Tech News">
<content iframe="true" scroll="true" urlType="absolute" url="http://m.engadget.com/" />
<size width="50" height="300" />
</portlet>

<portlet id="news" title="Headlines from Reuters" img="tbl.gif" imgalt="My Headlines">
<content iframe="true" scroll="true" urlType="absolute" url="http://mobile.reuters.com/mobile/m/Category/CTOP" />
<size width="50" height="300" />
</portlet>

<portlet id="weather_r_hires" title="Current Radar (Hi Res)" img="radar.gif"
imgalt="High Resolution Radar for Boston, MA">
<content iframe="true" urlType="absolute" url="http://mobile.weather.gov/radarhl.php?radar=kbox" />
<size width="66" height="600" />
</portlet>

<portlet id="weather_forecast" title="Forecast for Boston, MA" img="tbl.gif"
imgalt="Forecast for Boston, MA">
<content iframe="true" urlType="absolute" url="http://mobile.weather.gov/port_mp_ns.php?select=1&CityName=Boston&site=BOX&State=MA&warnzone=MAZ015" />
<size width="33" height="600" />
</portlet>



<portlet id="blankIntro" title="Blank Canvas Instructions" img="tbl.gif"
imgalt="Blank Canvas Instructions" copies="0">
<content urlType="shared" scroll="false" iframe="true"
url="content/CanvasIntro.html" />
<size width="100" height="550" />
</portlet>

</portlets>

</mashConfig>

The exception appears when i in a user canvas, not a global canvas.

bhanley

What user are you logged in as? Are you logged in as "Administrator"? There are some issues if you try and create a user canvas as the protected "administrator" user that is added to the iServer on installation. Try creating a user on your system and logging in as them rather than Administrator.

kiki

I have tried to log in as another user, who's role in iserver includes administrator.<br />
But this exception appears sometimes. When ArrayIndexOutOfBoundsException appears, then user's canvas cann't be saved, until i restart the iportal.<br />
I search such a exception in intenet, for example: <a class='bbc_url' href='http://markmail.org/message/ivsc2wp44be2hs5j'>Re: ArrayIndexOutOfBoundsException on Serialization using JAXB 2.1</a>, they run their application, sometimes also catch the same exception as in mashboard.<br />
I think the problem is from jaxb, which version of jaxb and jdk in mashboard?