Index: bitten/build/javatools.py
===================================================================
--- bitten/build/javatools.py	(revision 301)
+++ bitten/build/javatools.py	(working copy)
@@ -26,6 +26,10 @@
     if ant_home:
         executable = os.path.join(ant_home, 'bin', 'ant')
 
+    java_home = ctxt.config.get_dirpath('java.home')
+    if java_home:
+        os.environ['JAVA_HOME'] = java_home
+
     logfile = tempfile.NamedTemporaryFile(prefix='ant_log', suffix='.xml')
     if args:
         args = shlex.split(args)