eclipse.ini settings for Eclipse Indigo/Juno/Kepler & JDK7

eclipse.ini

-nosplash
--launcher.defaultAction
openFile
-vm
C:/JDK7/jre/bin/server/jvm.dll #Windows
#/Library/Java/JavaVirtualMachines/jdk1.7.0_25.jdk/Contents/Home/bin/java #OS X
-vmargs
-Xincgc
-Xss1m
-Duser.name=FirstName LastName
-Dfile.encoding=UTF-8
-Dosgi.requiredJavaVersion=1.7
-Declipse.p2.unsignedPolicy=allow
-Declipse.p2.MD5Check=false
#-Dandroid.sdk.path=/Users/yourusername/android-sdk-macosx #Android on OS X
#-Xdock:icon=../Resources/Eclipse.icns #OS X
#-Dorg.eclipse.swt.internal.carbon.smallFonts #OS X
-Xms128m
-Xmx400m
-XX:NewSize=16m
-XX:PermSize=128m
-XX:MaxPermSize=400m
-XX:MaxPermHeapExpansion=20m
-XX:+UseConcMarkSweepGC
-XX:CMSInitiatingOccupancyFraction=70
-XX:+UseCMSInitiatingOccupancyOnly
-XX:+UseParNewGC
-XX:+CMSConcurrentMTEnabled
-XX:ConcGCThreads=2
-XX:ParallelGCThreads=2
-XX:+CMSIncrementalPacing
-XX:CMSIncrementalDutyCycleMin=0
-XX:CMSIncrementalDutyCycle=5
-XX:GCTimeRatio=49
-XX:MaxGCPauseMillis=20
-XX:GCPauseIntervalMillis=1000
-XX:+UseCMSCompactAtFullCollection
-XX:+CMSClassUnloadingEnabled
-XX:+DoEscapeAnalysis
-XX:+UseCompressedOops
-XX:+AggressiveOpts #Doesnt work with Android see Google Code Android issue 9883
-XX:+ExplicitGCInvokesConcurrentAndUnloadsClasses

Hi,
Can you tell me for what reason you have used these lines.
-Duser.name=FirstName LastName
-Dfile.encoding=UTF-8
-Dosgi.requiredJavaVersion=1.7
-Declipse.p2.unsignedPolicy=allow
-Declipse.p2.MD5Check=false
If I will add this line then is there any affect will happens.

Thanks & Regards
Sailendra Narayan Jena
Email Id: [email protected]