Re: /rpc/RemoteService : Unsupported major.minor version 51.0

I just noticed that weblogic is still running at JDK 1.6. That might be the reason. It will be very hard for now to upgrade sdk on weblogic since other legacy applications are in same server.

Is there any alternate solution ?

Thanks

Kumar

On Sunday, January 1, 2017 at 3:17:00 AM UTC-5, Kumarasamy R wrote:

Hi all,

Trying to migrate to 2.8 from 2.7. Resolved all the build issues and successfully done. When I deploy my war into weblogic getting folloing error. 

I verified gwt-servlet jar is in war\WEB-INF\lib\gwt-servlet-2.8.0.jar

Any idea what might cause this issue ?

appreciate your help.

<Jan 1, 2017 2:32:32 AM EST> <Warning> <HTTP> <BEA-101162> <User defined listener weblogic.wsee.deploy.ServletDeployListener failed: java.lang.NoClassDefFoundError: com/google/gwt/user/client/rpc/RemoteService.

java.lang.NoClassDefFoundError: com/google/gwt/user/client/rpc/RemoteService

        at java.lang.ClassLoader.defineClass1(Native Method)

        at java.lang.ClassLoader.defineClass(ClassLoader.java:616)

        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)

        at weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:344)

        at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:301)

        Truncated. see log file for complete stacktrace

Caused By: java.lang.ClassNotFoundException: Class bytes found but defineClass()failed for: 'com.google.gwt.user.client.rpc.RemoteService'

        at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:275)

        at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:56)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:303)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

        at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:177)

        Truncated. see log file for complete stacktrace

Caused By: java.lang.UnsupportedClassVersionError: com/google/gwt/user/client/rpc/RemoteService : Unsupported major.minor version 51.0

        at java.lang.ClassLoader.defineClass1(Native Method)

        at java.lang.ClassLoader.defineClass(ClassLoader.java:616)

        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)

        at weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:344)

        at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:301)

        Truncated. see log file for complete stacktrace

>

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