classpath - Why does ANT tell me that JAVA_HOME is wrong when it is not?

Question

I get the error:

C:devwsspringappuild.xml:81: Unable to find a javac compiler; com.sun.tools.javac.Main is not on the classpath. Perhaps JAVA_HOME does not point to the JDK. It is currently set to "C:Program FilesJavajre6"

But I have clearly set my JAVA_HOME to be C:Program FilesJavajdk1.6.0_14

Where is ANT getting this value?

Answer 1

1. In Eclipse click Run → External Tools → External Tools Configurations.
2. Click the JRE tab.
3. Click the Installed JREs... button.
4. Click the Add button.
   (Select Standard VM, where applicable.)
5. Click the Directory button.
6. Browse to your JDK version (not JRE) of your installed Java
   (e.g. C:Program FilesJavajdk1.7.0_04).
7. Click Finish and OK.
8. Select the JDK at Separate JRE and click Close.
9. Re-run your Ant script — have fun!

This worked in a particular scenario I encountered.