NullPointerException when deploying the portlet

[Dhanush B, modificado 7 Anos atrás.]

Hi all,

I am getting below error when i am deploying the portlet in tomcat server.

SEVERE: Servlet.service() for servlet [default] in context with path [/hams-eCalendar-portlet] threw exception
java.lang.NullPointerException
at com.liferay.portal.kernel.servlet.PortalClassLoaderFilter.doFilter(PortalClassLoaderFilter.java:78)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:119)
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:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)


Please can anyone help me for this issue..

Thanks
Dhanush

[David H Nebinger, modificado 7 Anos atrás.]

Can you post the plugin? There's really nothing here which even starts to point at an issue...

[Andrew Jardine, modificado 7 Anos atrás.]

At the very least post the FULL stacktrace including the Caused By information.

[Dhanush B, modificado 7 Anos atrás.]

Hi Andrew and David,

I have attached error full stacktrace. Please provide some suggestion.


Thansk & Regards
Dhanush B

[David H Nebinger, modificado 7 Anos atrás.]

The only thing this tells me is that spring is not able to autowire the liferayTransactionManager bean because it can't find the getTransactionManager() method in the class, then all of the NPEs.

I'm guessing the NPEs are actually symptoms of earlier exceptions and the portlet not really loading.

The spring wiring error is likely due to a jar conflict, like say you are trying to use spring 4 in liferay when it uses spring 3 or perhaps there's some other conflict.

Try posting the whole log file (so we can see any earlier exceptions) and your project so we can review the dependencies.

[Dhanush B, modificado 7 Anos atrás.]

Hi David,

Thanks for your reply. I have attachecd my error log and pom.xml file also. Actually i am trying to convert sdk project to maven project.

Thanks
Dhanush