Solution : https://service.sap.com/sap/support/notes/874123 (SAP Service marketplace login required)
Summary : Key words : Related Notes :
The SAP Note describes issues with Java Support Package Manager (JSPM) shutting down due to OutOfMemoryError related to Java heap space or PermGen space. These errors are logged in JSPM_PROCESS_
jspm file /usr/sap/<sid>/<central instance, \usr\sap\<sid>\<central instance, /usr/sap/<sid>/<central instance, >/j2ee/jspm/bootstrap/config/bootconfig, >/j2ee/jspm/data/variables directory, >\j2ee\jspm\data\variables\<file, >/j2ee/jspm/trc/jspm<_xx>, symptom java support package manager, add line <stringvalue>-xmx512m</stringvalue>, deleting corrupted data model files
1443834 Central SAP Note JSPM 7.2 1405732 "OutOfMemoryError: Java heap space" in Web service component 1404134 Compilation fails with memory issue in Web service component 1147119 Central SAP Note JSPM 7.1 891983 JSPM: Central SAP Note SAP NetWeaver 7.0 AS Java