Maven error in Eclipse at startup

I recently installed Maven in Eclipse (specifically, MyEclipse) and kept getting this error at startup:

6/20/08 3:44:40 PM CDT: Eclipse is running in a JRE, but a JDK is required
  Some Maven plugins may not work when importing projects or updating source folders.

The fix was to modify my eclipse.ini file as shown here (changes are bold):

-showsplash
com.genuitec.myeclipse.product
--launcher.XXMaxPermSize
256m
-vm
C:\java\jdk1.6.0_06\bin\javaw.exe
-vmargs
-Xms128m
-Xmx512m
-Duser.language=en
-XX:PermSize=128M
-XX:MaxPermSize=256M