Problems with the administrative console: JVM memory issues
Console runs out of memory (PermGen). An inadequate PermSize setting in the server, while hosting web applications like the administrative console can result in errors like this in the error log:
[02/Mar/2016:07:50:27.017 -0600] threadID=2 category=UTIL severity=SEVERE_ERROR msgID=-1 msg="The server experienced an unexpected error. Please report this problem and include this log file. OutOfMemoryError: PermGen space ()\ncom.unboundid.directory.server.core.DirectoryServer.uncaughtException (DirectoryServer.java:15783)\njava.lang.ThreadGroup.uncaughtException (ThreadGroup.java:1057)\njava.lang.ThreadGroup.uncaughtException (ThreadGroup.java:1052)\njava.lang.ThreadGroup.uncaughtException (ThreadGroup.java:1052)\njava.lang.Thread.dispatchUncaughtException (Thread.java:1986)\nBuild revision: 22496\n"
This is only relevant for servers running Java 7.