diff --git a/java/test/org/broadinstitute/sting/gatk/WalkerManagerUnitTest.java b/java/test/org/broadinstitute/sting/gatk/WalkerManagerUnitTest.java
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+++ b/java/test/org/broadinstitute/sting/gatk/WalkerManagerUnitTest.java
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+/*
+ * Copyright (c) 2010, The Broad Institute
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package org.broadinstitute.sting.gatk;
+
+import org.broadinstitute.sting.commandline.Hidden;
+import org.broadinstitute.sting.gatk.walkers.Walker;
+import org.broadinstitute.sting.gatk.walkers.qc.CountLociWalker;
+import org.broadinstitute.sting.utils.exceptions.DynamicClassResolutionException;
+import org.broadinstitute.sting.utils.exceptions.UserException;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * Tests basic functionality of the walker manager.
+ */
+public class WalkerManagerUnitTest {
+    private static WalkerManager walkerManager;
+
+    @BeforeClass
+    public static void setUp() {
+        walkerManager = new WalkerManager();
+    }
+
+    @Test
+    public void testPresentWalker() {
+        Walker countLociWalker = walkerManager.createByName("CountLoci");
+        Assert.assertEquals(CountLociWalker.class,countLociWalker.getClass());
+    }
+
+    @Test(expected=UserException.class)
+    public void testAbsentWalker() {
+        walkerManager.createByName("Missing");
+    }
+
+    @Test(expected=DynamicClassResolutionException.class)
+    public void testUninstantiableWalker() {
+        walkerManager.createByName("Uninstantiable");
+    }
+}
+
+@Hidden
+class UninstantiableWalker extends Walker<Integer,Long> {
+    // Private constructor will generate uninstantiable message
+    private UninstantiableWalker() {}
+    public Long reduceInit() { return 0L; }
+    public Long reduce(Integer value, Long accum) { return 0L; }
+}
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