diff --git a/hyracks-examples/btree-example/btreeapp/.classpath b/hyracks-examples/btree-example/btreeapp/.classpath
index d0bec0f..3f62785 100644
--- a/hyracks-examples/btree-example/btreeapp/.classpath
+++ b/hyracks-examples/btree-example/btreeapp/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.4"/>
 	<classpathentry kind="con" path="org.maven.ide.eclipse.MAVEN2_CLASSPATH_CONTAINER"/>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/hyracks-examples/btree-example/btreeapp/.settings/org.eclipse.jdt.core.prefs b/hyracks-examples/btree-example/btreeapp/.settings/org.eclipse.jdt.core.prefs
index 75a3d16..f362c73 100644
--- a/hyracks-examples/btree-example/btreeapp/.settings/org.eclipse.jdt.core.prefs
+++ b/hyracks-examples/btree-example/btreeapp/.settings/org.eclipse.jdt.core.prefs
@@ -1,6 +1,6 @@
-#Thu Aug 04 11:50:30 PDT 2011
+#Sun Aug 14 10:18:14 PDT 2011
 eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
-org.eclipse.jdt.core.compiler.compliance=1.5
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.4
+org.eclipse.jdt.core.compiler.compliance=1.4
 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
-org.eclipse.jdt.core.compiler.source=1.5
+org.eclipse.jdt.core.compiler.source=1.4