JVM terminated Exit code=1 Eclipse error

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When I try to work with eclipse, it is often auto close and open a error dialog on which say: JVM terminated. Exit code=-1 -Dosgi.requiredJavaVersion=1.5 -Xmx349m -XX:MaxPermSize=256m -Djava.class.path=C:\tools\eclipse-rcp-galileo-SR1-win32\eclipse\plugins/org.eclipse.equinox.launcher_1.0.201.R35x_v20090715.jar -os win32 -ws win32 -arch x86 -showsplash C:\tools\eclipse-rcp-galileo-SR1-win32\eclipse\\plugins\org.eclipse.platform_3.3.201.v200909170800\splash.bmp -launcher C:\tools\eclipse-rcp-galileo-SR1-win32\eclipse\eclipse.exe -name Eclipse --launcher.library C:\tools\eclipse-rcp-galileo-SR1-win32\eclipse\plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.0.200.v20090519\eclipse_1206.dll -startup C:\tools\eclipse-rcp-galileo-SR1-win32\eclipse\plugins/org.eclipse.equinox.launcher_1.0.201.R35x_v20090715.jar -product org.eclipse.epp.package.rcp.product -vm c:\tools\java6\bin\..\jre\bin\client\jvm.dll -vmargs -Dosgi.requiredJavaVersion=1.5 -Xmx349m -XX:MaxPermSize=256m -Djava.class.path=C:\tools\eclipse-rcp-galileo-SR1-win32\eclipse\plugins/org.eclipse.equinox.launcher_1.0.201.R35x_v20090715.jar