Issue When Deploying The New Demantra.war File In WEBLOGIC 12c - Unsupported major.minor version 52.0 (Doc ID 2202940.1)

Last updated on AUGUST 17, 2022

Applies to:

Symptoms

On : 12.2.6 version, Technical

When attempting to deploy the newnew demantra.war file in WEBLOGIC 12c,
the following error occurs.

ERROR
-----------------------

<Class, com.demantra.common.webServices.workflow.WorkflowServices, was compiled with an incompatible version of Java. Make sure that all the classes needed by the application have been compiled with a compatible java version. java.lang.UnsupportedClassVersionError: com/demantra/common/webServices/workflow/WorkflowServices : Unsupported major.minor version 52.0
java.lang.UnsupportedClassVersionError: com/demantra/common/webServices/workflow/WorkflowServices : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:412)
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:366)
Truncated. see log file for complete stacktrace


STEPS
-----------------------
The issue can be reproduced at will with the following steps:
1. Upgrade demantra from version 12.2.5.1 to version 12.2.6.
2. Try to deploy the new demantra.war file in WEBLOGIC 12c.
3. It fails.

BUSINESS IMPACT
-----------------------
The issue has the following business impact:
Due to this issue, users cannot deploy demantra war file on weblogic server. This is stopping the project of upgrading of demantra to the latest release.

Changes

Cause

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