DB Console Fails to Start with java.lang.NoClassDefFoundError in a High Availability Cold Failover Cluster (Doc ID 371549.1)

Last updated on JUNE 22, 2017

Applies to:

Enterprise Manager for Fusion Middleware - Version 10.1.2.0.0 to 10.1.4.0.1
Oracle Fusion Middleware High Availability - Version 10.1.2.0.0 to 10.1.4.0.1 [Release AS10gR2]
Information in this document applies to any platform.

Symptoms

After installing Oracle Application Server in an active passive Cold Failover Cluster the OracleAS DB Console does not start.

Running 'emctl start dbconsole' fails with the error, "OC4J Configuration issue. <Path_to_oracle_home>/oc4j/j2ee/OC4J_<DBConsole_hostname_sid> not found",

The em-application.log shows error, "emd: Servlet error", similar to the stack below:

emd: Servlet error
java.lang.NoClassDefFoundError: oracle/sysman/eml/app/Console
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java(Compiled Code))

Changes

 

Cause

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