Solution : https://service.sap.com/sap/support/notes/978127 (SAP Service marketplace login required)
Key words : 
topics                                          date changed======                                          ============1 general information                              jul/20082 pre-installation                                jan/20083 installation                                    jul/20105 post-installation                                jul/20086 troubleshooting                                  jun/2008+===================================================================+ 1, \qibm\proddata\java400\jdk14\bin\java -classpath /usr/sap/sapinst/nw04s/system/db4/central/, -> system administration [open] [close] -> security guide -> sap netweaver security guide -> security aspects, key capability -> software life-cycle management -> software maintenance -> java support package manager, -> sap netweaver library [en] [de] -> sap library -> sap netweaver library -> sap netweaver, entry set sdm_java_home=/qibm/proddata/java400/jdk14toset sdm_java_home=%java_home%, /usr/sap/qo1/jc00/j2ee/cluster/server0/log/defaulttrace, key capability -> software life cycle management -> system landscape directory, /usr/sap/<sapsid>/<instance>/j2ee/cluster/server0/log/defaulttrace, /usr/sap/sid/sys/exe/run/r3load -dbcodepage 4102 -
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