diff --git a/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/examples/SimpleStringAnalysisDriver.java b/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/examples/SimpleStringAnalysisDriver.java
index 56259c590..7f8868480 100644
--- a/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/examples/SimpleStringAnalysisDriver.java
+++ b/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/examples/SimpleStringAnalysisDriver.java
@@ -1,12 +1,11 @@
 package com.ibm.wala.stringAnalysis.js.examples;
 
-import com.ibm.wala.classLoader.*;
-import com.ibm.wala.ipa.callgraph.*;
-import com.ibm.wala.stringAnalysis.js.client.*;
-import com.ibm.wala.util.debug.*;
+import java.io.File;
+import java.util.Collections;
 
-import java.io.*;
-import java.util.*;
+import com.ibm.wala.classLoader.SourceFileModule;
+import com.ibm.wala.stringAnalysis.js.client.JSStringAnalysisEngine;
+import com.ibm.wala.util.debug.Assertions;
 
 public class SimpleStringAnalysisDriver {
 
@@ -21,7 +20,7 @@ public class SimpleStringAnalysisDriver {
     JSStringAnalysisEngine engine = new JSStringAnalysisEngine();
     engine.setModuleFiles(
       Collections.singleton(new SourceFileModule(scriptFile, testName)));
-    CallGraph CG = engine.buildDefaultCallGraph();
+    engine.buildDefaultCallGraph();
     
     String variableName = args[1];
     String patternString = args[2];
diff --git a/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/test/translator/TestCG2GR.java b/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/test/translator/TestCG2GR.java
index 99539c235..57a5a6162 100644
--- a/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/test/translator/TestCG2GR.java
+++ b/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/test/translator/TestCG2GR.java
@@ -29,7 +29,6 @@ public class TestCG2GR extends TestJSTranslatorBase {
         CG2GR cg2gr = new CG2GR(ir2gr, new FunctionNameCalleeResolver(new JSFunctionNameResolver()));
         ISimplify g = cg2gr.translate(getCallGraphBuilder());
         assertTrue(g instanceof GR);
-        GR gr = (GR) g;
         //Trace.println("--- GR:");
         //Trace.println(SAUtil.prettyFormat(gr));
     }
diff --git a/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/test/translator/TestGR2CFG.java b/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/test/translator/TestGR2CFG.java
index bf1fde381..ddb1ad080 100644
--- a/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/test/translator/TestGR2CFG.java
+++ b/com.ibm.wala.stringAnalysis.js.test/src/com/ibm/wala/stringAnalysis/js/test/translator/TestGR2CFG.java
@@ -76,7 +76,6 @@ public class TestGR2CFG extends TestJSTranslatorBase {
 
 
   public void testConditionalBranch() {
-    IVariable r2 = new LexicalVariable("r2");
     IContextFreeGrammar cfg = verifyCFG(new LexicalVariable("r2"), "astrA|bstrB");
     assertTrue(CFLReachability.containsSome(cfg, pattern("a" + "strA")));
     assertTrue(CFLReachability.containsSome(cfg, pattern("b" + "strB")));
@@ -125,7 +124,7 @@ public class TestGR2CFG extends TestJSTranslatorBase {
   public void testAssocArray1() {
     //TODO:
     //assertTrue(CFLReachability.containsAll(pattern("strA|strB|ASSOC"), cfg));
-    IContextFreeGrammar cfg = verifyCFG(new LexicalVariable("r21"), "ASSOC");
+    verifyCFG(new LexicalVariable("r21"), "ASSOC");
   }
 
   public void testSubstring1() {
@@ -197,7 +196,7 @@ public class TestGR2CFG extends TestJSTranslatorBase {
   }
 
   public void testSplit1() {
-    IContextFreeGrammar cfg = verifyCFG(new LexicalVariable("rSplit1"), "a|b|c|()");
+    verifyCFG(new LexicalVariable("rSplit1"), "a|b|c|()");
   }
 
   public void testProp1() {
@@ -207,10 +206,10 @@ public class TestGR2CFG extends TestJSTranslatorBase {
                 pattern("foo"),
                 Automatons.createAutomaton(new ISymbol[]{new NumberSymbol(123.0)}));
      */
-    IContextFreeGrammar cfg = verifyCFG(new LexicalVariable("rProp1"), pattern("foo"));
+    verifyCFG(new LexicalVariable("rProp1"), pattern("foo"));
   }
 
   public void testCyclic1() {
-    IContextFreeGrammar cfg = verifyCFG(new LexicalVariable("rCyclic1"), "(abcdefg)|(bcd)");
+    verifyCFG(new LexicalVariable("rCyclic1"), "(abcdefg)|(bcd)");
   }
 }