Solution : https://service.sap.com/sap/support/notes/1440975 (SAP Service marketplace login required)
Key words : 
netweaver application server java, large java applications, symptom sap jvm 6, solution sap jvm 6, sap jvm build 6, hp-ux/ia64, trace files configured, vm option -xtracefile, configured trace file, adaptive size policy
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