diff --git a/hyracks-examples/btree-example/btreeapp/.classpath b/hyracks-examples/btree-example/btreeapp/.classpath
index 3f62785..77b6db8 100644
--- a/hyracks-examples/btree-example/btreeapp/.classpath
+++ b/hyracks-examples/btree-example/btreeapp/.classpath
@@ -1,6 +1,7 @@
 <?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-1.4"/>
+	<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.m2e.MAVEN2_CLASSPATH_CONTAINER"/>
 	<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/.project b/hyracks-examples/btree-example/btreeapp/.project
index 897fb85..5355fcc 100644
--- a/hyracks-examples/btree-example/btreeapp/.project
+++ b/hyracks-examples/btree-example/btreeapp/.project
@@ -15,8 +15,14 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.m2e.core.maven2Builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
+		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
 		<nature>org.maven.ide.eclipse.maven2Nature</nature>
 	</natures>
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 f362c73..12584e2 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 @@
-#Sun Aug 14 10:18:14 PDT 2011
+#Tue Oct 04 13:01:57 PDT 2011
 eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.4
-org.eclipse.jdt.core.compiler.compliance=1.4
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
+org.eclipse.jdt.core.compiler.compliance=1.5
 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
-org.eclipse.jdt.core.compiler.source=1.4
+org.eclipse.jdt.core.compiler.source=1.5