在Solaris上的Weblogic application server今天无法启动，以下是log, 请高手分享经验，可能原因，多谢。
Starting WebLogic Server...
<140005>
ion /opt/edb/domains/edb4/config.xml>
<000000>
ng 'dc=edb4': null>
<000000>
ect.InvocationTargetException: java.lang.OutOfMemoryError
<>
>
<171522>
red while initializing the Embedded LDAP Server. The exception thown is java.lan
g.ClassCastException: com.octetstring.vde.backend.BackendRoot. This may indicate
a problem with the data files for the Embedded LDAP Server. If the problem is w
ith the data files and it can not be corrected, backups of previous versions of
the data files exist in /opt/edb/domains/edb4/edbtest4/ldap/backup.>
<000364>
d during initialization. Exception:weblogic.server.ServiceFailureException: Erro
r initializing Embedded LDAP Server - with nested exception:
[java.lang.ClassCastException: com.octetstring.vde.backend.BackendRoot]
java.lang.ClassCastException: com.octetstring.vde.backend.BackendRoot
at weblogic.ldap.EmbeddedLDAP.initialize(EmbeddedLDAP.java:252)
at weblogic.t3.srvr.T3Srvr.initialize1(T3Srvr.java:717)
at weblogic.t3.srvr.T3Srvr.initialize(T3Srvr.java:594)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:282)
at weblogic.Server.main(Server.java:32)