Specified in the plugin.xml of the branding plugin.
-product org.eclipse.epp.package.linuxtools.product
--launcher.defaultAction openFile
--launcher.XXMaxPermSize
256M
-Dosgi.requiredJavaVersion=1.6
-Xms40m
-Xmx256m
-XX:MaxPermSize=256m
-XstartOnFirstThread -Dorg.eclipse.swt.internal.carbon.smallFonts
-XX:MaxPermSize=256m
org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5
org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5
org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5
org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5