2452033 - Java crashed due to LDAP issues

• Java hangs/goes down while accessing user details for the users with large number of group assignment using LDAP as datasource.
• Outofmemory occurs with error "Exception occured while retrieve red threads; java.lang.OutOfMemoryError: Java heap space ".
• Leak suspect report after analyzing heap dump OOM.hrpof shows :<nnn> instances of "iaik.security.ssl.SSLTransport", loaded by "library:mail-activation-iaik" occupy <xxx> (yy%) bytes.
• Default traces contains

         java.lang.ThreadDeath
         at java.lang.Thread.stop(Thread.java:858)
         at com.sap.security.core.persistence.datasource.imp.LDAPDataSourceConnectionPool.newConnection(LDAPDataSourceConnectionPool.java:835)
         at com.sap.security.core.persistence.datasource.imp.LDAPDataSourceCo.."

• LDAP servers are working fine.

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SAP Netweaver Java 7.1 and above.

SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP NetWeaver Application Server for Java 7.1 ; SAP NetWeaver Application Server for Java 7.2 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 1 for SAP NetWeaver Application Server for Java 7.1

ume.ldap.access.group_existence_check, Propertysheet com.sap.security. core.ume.service ume.ldap.access.server_name ume.ldap.access.server_port ume.ldap.access.server_port 673824 ,SAP Production ABAP R/3 ERP SRM CRM ERP PPM SEM APO XI PI PORTAL Test development QA,Propertysheet com.sap.security. core.ume.service destinations  Propertysheet  UMEBackendConnection Connection and Transport , KBA , BC-JAS-SEC-UME , User Management Engine , Problem