diff --git a/.cproject b/.cproject
index ce0ab3c4c..8a2eaaf1c 100644
--- a/.cproject
+++ b/.cproject
@@ -584,7 +584,6 @@
 			</target>
 			<target name="tests/testBayesTree.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>tests/testBayesTree.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -592,7 +591,6 @@
 			</target>
 			<target name="testBinaryBayesNet.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testBinaryBayesNet.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -640,7 +638,6 @@
 			</target>
 			<target name="testSymbolicBayesNet.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testSymbolicBayesNet.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -648,7 +645,6 @@
 			</target>
 			<target name="tests/testSymbolicFactor.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>tests/testSymbolicFactor.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -656,7 +652,6 @@
 			</target>
 			<target name="testSymbolicFactorGraph.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testSymbolicFactorGraph.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -672,7 +667,6 @@
 			</target>
 			<target name="tests/testBayesTree" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>tests/testBayesTree</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1104,7 +1098,6 @@
 			</target>
 			<target name="testErrors.run" path="linear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testErrors.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1334,46 +1327,6 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testBTree.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testBTree.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testDSF.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testDSF.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testDSFMap.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testDSFMap.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testDSFVector.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testDSFVector.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testFixedVector.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testFixedVector.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 			<target name="all" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -1456,6 +1409,7 @@
 			</target>
 			<target name="testSimulated2DOriented.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSimulated2DOriented.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1495,6 +1449,7 @@
 			</target>
 			<target name="testSimulated2D.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSimulated2D.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1502,6 +1457,7 @@
 			</target>
 			<target name="testSimulated3D.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSimulated3D.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1515,6 +1471,46 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="testBTree.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testBTree.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testDSF.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testDSF.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testDSFMap.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testDSFMap.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testDSFVector.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testDSFVector.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testFixedVector.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testFixedVector.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="testEliminationTree.run" path="build/gtsam/inference/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j5</buildArguments>
@@ -1780,7 +1776,6 @@
 			</target>
 			<target name="Generate DEB Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>cpack</buildCommand>
-				<buildArguments/>
 				<buildTarget>-G DEB</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1788,7 +1783,6 @@
 			</target>
 			<target name="Generate RPM Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>cpack</buildCommand>
-				<buildArguments/>
 				<buildTarget>-G RPM</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1796,7 +1790,6 @@
 			</target>
 			<target name="Generate TGZ Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>cpack</buildCommand>
-				<buildArguments/>
 				<buildTarget>-G TGZ</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1804,7 +1797,6 @@
 			</target>
 			<target name="Generate TGZ Source Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>cpack</buildCommand>
-				<buildArguments/>
 				<buildTarget>--config CPackSourceConfig.cmake</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2537,6 +2529,14 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="testOptionalJacobian.run" path="build/gtsam/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j4</buildArguments>
+				<buildTarget>testOptionalJacobian.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="check.tests" path="build/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j5</buildArguments>
@@ -2675,7 +2675,6 @@
 			</target>
 			<target name="testGraph.run" path="build/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testGraph.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2683,7 +2682,6 @@
 			</target>
 			<target name="testJunctionTree.run" path="build/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testJunctionTree.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2691,7 +2689,6 @@
 			</target>
 			<target name="testSymbolicBayesNetB.run" path="build/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testSymbolicBayesNetB.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -3291,6 +3288,7 @@
 			</target>
 			<target name="tests/testGaussianISAM2" path="build/slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>tests/testGaussianISAM2</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
diff --git a/gtsam/base/OptionalJacobian.h b/gtsam/base/OptionalJacobian.h
index 08b8151dc..2ea9d672e 100644
--- a/gtsam/base/OptionalJacobian.h
+++ b/gtsam/base/OptionalJacobian.h
@@ -100,7 +100,7 @@ public:
 
   /// Return true is allocated, false if default constructor was used
   operator bool() const {
-    return map_.data();
+    return map_.data() != NULL;
   }
 
   /// De-reference, like boost optional
@@ -156,7 +156,7 @@ public:
 
   /// Return true is allocated, false if default constructor was used
   operator bool() const {
-    return pointer_;
+    return pointer_!=NULL;
   }
 
   /// De-reference, like boost optional