Solution : https://service.sap.com/sap/support/notes/717376 (SAP Service marketplace login required)
Key words : 
dirs=/qibm/proddata/java400/jdk14/lib/ext, /infocenter/iseries/v5r4/topic/rzatz/51/admin/reftzval, timezone=europe/berlinto /qibm/userdata/java400/systemdefault, jit compiler modethe jit compiler mode jitc, dirs=/usr/sap/<sid>/sys/j2ee/ext, </my_path>-xx properties / -xj9 parameterthe ibm classic jvm, java extension directorythe java extension directory settings, /usr/sap/<sid>/sys/j2ee/cache/qdefineclasscache, solution configjvm tool - sap note 1262494the java settings, directory /usr/sap/<sid>/<instance>/j2ee/cluster
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