Java APIs

First, the code snippet:

public class EnumSingleTest{

    public enum RUN_MODE {ONE, TWO};

    private Map<RUN_MODE, String> m = new EnumMap<RUN_MODE, String>(RUN_MODE.class); 
      // COMPILER ERROR HERE

    public EnumSingleTest() 
    { 
    }
}

I try to compile it using JBuilder 2005 (using Borland Make and javac), and it keeps giving me the error:
"EnumSingleTest.java": type parameter EnumSingleTest.RUN_MODE is not within its bound at line 20, column 51

However, when I run the same file on the command line using javac, it does NOT give me any errors

C:\temp\Java tests>which javac
/cygdrive/c/Program Files/Java/jdk1.5.0_02/bin/javac

C:\temp\Java tests>javac EnumSingleTest.java

C:\temp\Java tests>

I am clueless. Please help. I ve run out of ideas, and need to get this working asap.

Could this be a JBuilder 2005 problem? (Btw, the JDK in Jbuilder points to JDK 1.5 directory)

Thanks in advance.