Setting User Defined JVM Memory Arguments in JDeveloper 11g Integrated WebLogic Server This guide explains how to set your own predefined JVM memory arguments for the JDeveloper WebLogic container at startup for the integrated WebLogic server. This will help avoid java.lang.OutOfMemoryError s experienced on heavy java processes and also improve on the integrated JDeveloper WebLogic server’s performance overall. Steps Locate the file: setDomainEnv.cmd which should be at: [JDeveloper Working Directory]\jdeveloper\system.xxx.xx.xx\DefaultDomain\bin i. Note: [JDeveloper Working Directory] will be "C:\Documents and Settings\<username>\Application Data per default ii. xxx.xx.xx will be a version number After the comments at the start of the file add the following environment variable with your