Error

Following error is thrown while starting Application Tier:

ApplicationLogManager is not installed, may result in loader leaks. Set -Djava.util.logging.manager=oracle.classloader.util.ApplicationLogManager 

Log File Directory = /u01/install/APPS/inst/apps/EBSDB_ebs/logs/ora/10.1.3/opmn

File Name = default_group~oacore~default_group~1.log

Investigation done

When the OC4J instance was created using AS Control, under -> Administration -> Server-Properties, there was a check box "Activate J2SE 5.0 Platform MBeans".
When this check box was ticked, it added JVM startup parameter "-Dcom.sun.management.jmxremote" to the OC4J instance.
Therefore, when OC4J instance is restarted, the opmn.log reports the warning.

Solution

This warning message is not an error and can be ignored. If you suspect it affects the application deployed in the OC4J instance, then provide a testcase to show the exact problem.

If you want to suppress the warning message being displayed, add the following JVM startup parameter to the OC4J instance:
-Djava.util.logging.manager=oracle.classloader.util.ApplicationLogManager

Environment

+ Oracle E-Business Suite Release 12.1.3

+ Oracle Linux x86-64 Operating System