--- a/je	Wed Nov 25 12:36:37 2015 -0500
+++ b/je	Thu Nov 26 08:59:27 2015 -0500
@@ -7,9 +7,12 @@
 # path to jar file to execute, this jar is supposed to be in the same dir as this script
 JAR_FILE=$DIR"/je_1.0_bundle.jar"
 
-OPTS="-Xmx2g"
-# uncomment to change logging level using your own log4j.xml found in $DIR file 
-# OPTS=$OPTS" -Dlog4j.configuration=file:$DIR/log4j.xml"
+# set default _JAVA_OPTIONS
+_JAVA_OPTIONS=${_JAVA_OPTIONS:-'-Xmx4G -Xms256m'}
+export _JAVA_OPTIONS
+
+# uncomment to change logging level using your own log4j.xml found in $DIR file
+# OPTS="-Dlog4j.configuration=file:$DIR/log4j.xml"
 
 java $OPTS -jar $JAR_FILE "$@"
 exit $?