“insufficient memory for the Java Runtime Environment ” message in eclipse

When I run my Java code in Eclipse, I get the following message:

There is insufficient memory for the Java Runtime Environment to continue.
Native memory allocation (malloc) failed to allocate 4088 bytes for AllocateHeap
An error report file with more information is saved as:
E:\Eclipse_Workspace\BTest\hs_err_pid1888.log

I have 4GB RAM in my computer. I have changed my JRE from 1.7 to 1.8 too. But the issue seems un-resolved. I use a Win 8 system with i3 Processor and have around 20gb of free disk space in my C Drive.

Eclipse version: Eclipse Juno Service release 2

I also get this message while starting Eclipse. I have attached the error message screen shot.

What is causing this issue?

enter image description here

Memory parameters in “eclipse.ini” file:

-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20120913-144807
-product
org.eclipse.epp.package.java.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Dhelp.lucene.tokenizer=standard
-Xms40m
-Xmx512m

Resolution: Re-installing eclipse fixed the problem.

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