update build to force Java 1.6 compatibility.
diff --git a/storm-console-logging/project.clj b/storm-console-logging/project.clj
index 56d71c7..7b4322b 100644
--- a/storm-console-logging/project.clj
+++ b/storm-console-logging/project.clj
@@ -4,7 +4,7 @@
 (defproject storm/storm-console-logging VERSION
   :resource-paths ["logback"]
   :target-path "target"
-
+  :javac-options ["-target" "1.6" "-source" "1.6"]
   :profiles {:release {}
              }
 
diff --git a/storm-core/project.clj b/storm-core/project.clj
index e274e66..0eaa6a3 100644
--- a/storm-core/project.clj
+++ b/storm-core/project.clj
@@ -34,7 +34,7 @@
   :test-paths ["test/clj"]
   :resource-paths ["../conf"]
   :target-path "target"
-
+  :javac-options ["-target" "1.6" "-source" "1.6"]
   :profiles {:dev {:resource-paths ["src/dev"]
                    :dependencies [[org.mockito/mockito-all "1.9.5"]]}
              :release {}
diff --git a/storm-netty/project.clj b/storm-netty/project.clj
index 869179c..24905bf 100644
--- a/storm-netty/project.clj
+++ b/storm-netty/project.clj
@@ -9,4 +9,5 @@
   :profiles {:release {}}
   :jvm-opts ["-Djava.library.path=/usr/local/lib:/opt/local/lib:/usr/lib"]
   :target-path "target"
+  :javac-options ["-target" "1.6" "-source" "1.6"]
   :aot :all))