maven 2 - m2eclipse: Eclipse is running in a JRE, but a JDK is required

Question

I have a problem with m2eclipse (0.10.0) together with eclipse galileo (Build id: 20090920-1017).

I always get the error message:"Eclipse is running in a JRE, but a JDK is required". I have tried several things, but nothing works. The error message is still there. Here are the things I have tried:

• In Window>Preferences>Java>Installed JREs I checked JDK1.6.0_20. DOES NOT WORK

• In Window>Preferences>Java>Installed JREs I removed all JREs. Only the checked JDK1.6.0_20 is still there. DOES NOT WORK

• In Window>Preferences>Java>Installed JREs>Execution Environments I choosed JavaSE-1.6 and checked JDK1.6.0_20[perfect match]. DOES NOT WORK.

• In Preferences of the eclipse desktop start icon I added the -vm parameter (C:Programmeeclipse_galileoeclipseeclipse.exe -vm C:ProgrammeJavajdk1.6.0_20in). DOES NOT WORK.

• I added the clean parameter (C:Programmeeclipse_galileoeclipseeclipse.exe -vm C:ProgrammeJavajdk1.6.0_20in -clean). DOES NOT WORK.

• I added the -vm parameter to the eclipse.ini file with a carriage return after -vm and C:/Programme/Java/jdk1.6.0_20/bin/javaw.exe in a new line. DOES NOT WORK.

• After doing all these things I removed the m2eclipse plugin and installed it once again. DOES NOT WORK.

New ideas I have tried:

• In Preferences of the eclipse desktop start icon I put the executable at the end (C:Programmeeclipse_galileoeclipseeclipse.exe -vm C:ProgrammeJavajdk1.6.0_20injavaw.exe). DOES NOT WORK.

• I changed in eclipse.ini the slashes to backslashes. DOES NOT WORK.

Here is my eclipse.ini file:

-startup
plugins/org.eclipse.equinox.launcher_1.0.201.R35x_v20090715.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.0.200.v20090519
-product
org.eclipse.epp.package.jee.product
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-vm
C:ProgrammeJavajdk1.6.0_20injavaw.exe
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms40m
-Xmx512m

Is anyone out there who have other ideas? Any help is appreciated.

Thank You very much. GernoK

question from:https://stackoverflow.com/questions/2921473/m2eclipse-eclipse-is-running-in-a-jre-but-a-jdk-is-required

Answer 1

Unbelievable, the solution to this problem has nothing to do with slashes, backslashes, quotes, spaces, jre, jdk, jvm, javaw, ....

The answer is that you have to have a line break between

-vm

and the path.

So in the eclipse.ini file:

THIS WILL NOT WORK:

-vm C:javajdkinjavaw.exe

BUT THIS WILL:

-vm
C:javajdkinjavaw.exe