diff --git a/src/main/java/edu/cornell/cs/cs4120/xic/ir/IRMem.java b/src/main/java/edu/cornell/cs/cs4120/xic/ir/IRMem.java
index e964bd9..5324589 100644
--- a/src/main/java/edu/cornell/cs/cs4120/xic/ir/IRMem.java
+++ b/src/main/java/edu/cornell/cs/cs4120/xic/ir/IRMem.java
@@ -30,7 +30,7 @@ public String toString() {
             }
             throw new InternalCompilerError("Unknown mem type!");
         }
-    };
+    }
 
     private IRExpr expr;
     private MemType memType;
diff --git a/src/main/java/edu/cornell/cs/cs4120/xic/ir/IRSeq.java b/src/main/java/edu/cornell/cs/cs4120/xic/ir/IRSeq.java
index ab69a3b..3407fc1 100644
--- a/src/main/java/edu/cornell/cs/cs4120/xic/ir/IRSeq.java
+++ b/src/main/java/edu/cornell/cs/cs4120/xic/ir/IRSeq.java
@@ -47,7 +47,7 @@ public IRSeq(List<IRStmt> stmts) {
     }
 
     public IRSeq(List<IRStmt> stmts, boolean replaceParent) {
-        this.stmts = filterNulls(stmts);;
+        this.stmts = filterNulls(stmts);
         this.replaceParent = replaceParent;
     }
 
diff --git a/src/main/java/edu/cornell/cs/cs4120/xic/ir/dfa/AvailableCopiesDFA.java b/src/main/java/edu/cornell/cs/cs4120/xic/ir/dfa/AvailableCopiesDFA.java
index 466a212..f864889 100644
--- a/src/main/java/edu/cornell/cs/cs4120/xic/ir/dfa/AvailableCopiesDFA.java
+++ b/src/main/java/edu/cornell/cs/cs4120/xic/ir/dfa/AvailableCopiesDFA.java
@@ -5,7 +5,6 @@
 import kc875.cfg.DFAFramework;
 import kc875.cfg.Graph;
 import kc875.utils.SetWithInf;
-import kc875.utils.XiUtils;
 import polyglot.util.Pair;
 
 public class AvailableCopiesDFA extends
diff --git a/src/main/java/edu/cornell/cs/cs4120/xic/ir/interpret/IRSimulator.java b/src/main/java/edu/cornell/cs/cs4120/xic/ir/interpret/IRSimulator.java
index 4301d63..0c285a5 100644
--- a/src/main/java/edu/cornell/cs/cs4120/xic/ir/interpret/IRSimulator.java
+++ b/src/main/java/edu/cornell/cs/cs4120/xic/ir/interpret/IRSimulator.java
@@ -3,12 +3,9 @@
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
-import java.io.PrintWriter;
 import java.math.BigInteger;
 import java.util.*;
-import java.util.ArrayList;
 
-import edu.cornell.cs.cs4120.util.CodeWriterSExpPrinter;
 import edu.cornell.cs.cs4120.util.InternalCompilerError;
 import edu.cornell.cs.cs4120.xic.ir.IRBinOp;
 import edu.cornell.cs.cs4120.xic.ir.IRCJump;
@@ -574,7 +571,7 @@ public IRNode getCurrentInsn() {
                 throw new Trap("No next instruction.  Forgot RETURN?");
             return insn;
         }
-    };
+    }
 
     /**
      * While traversing the IR tree, we require a stack in order to hold
@@ -626,7 +623,7 @@ public void pushValue(long value) {
 
     public static class StackItem {
         public enum Kind {
-            COMPUTED, MEM, TEMP, NAME;
+            COMPUTED, MEM, TEMP, NAME
         }
 
         public Kind type;
@@ -653,7 +650,7 @@ public StackItem(Kind type, long value, String string) {
                 temp = string;
             else name = string;
         }
-    };
+    }
 
     public static class Trap extends RuntimeException {
         private static final long serialVersionUID =
@@ -662,7 +659,7 @@ public static class Trap extends RuntimeException {
         public Trap(String message) {
             super(message);
         }
-    };
+    }
 
     public static class OutOfBoundTrap extends Trap {
         private static final long serialVersionUID =
@@ -671,5 +668,5 @@ public static class OutOfBoundTrap extends Trap {
         public OutOfBoundTrap(String message) {
             super(message);
         }
-    };
+    }
 }
diff --git a/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/ASMTranslationVisitor.java b/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/ASMTranslationVisitor.java
index 1407a86..1465690 100644
--- a/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/ASMTranslationVisitor.java
+++ b/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/ASMTranslationVisitor.java
@@ -1050,17 +1050,6 @@ public List<ASMInstr> visit(IRExp node) {
         return visitExpr(node.expr(), new ASMExprTemp(newTemp()));
     }
 
-    /**
-     * Remove all non-digit characters from a string, and return the integer
-     * value of the result.
-     *
-     * @param s string containing one or more digit
-     * @return number contained within the string
-     */
-    private static int numFromString(String s) {
-        return Integer.parseInt(s.replaceAll("\\D+", ""));
-    }
-
     public List<ASMInstr> visit(IRFuncDecl node) {
         List<ASMInstr> instrs = new ArrayList<>();
         int numParams = node.getNumParams();
diff --git a/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/CommonSubexprElimVisitor.java b/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/CommonSubexprElimVisitor.java
index 607a86d..e0e88ba 100644
--- a/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/CommonSubexprElimVisitor.java
+++ b/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/CommonSubexprElimVisitor.java
@@ -72,7 +72,6 @@ private IRFuncDecl removeCommonSubExpressions(IRFuncDecl func) {
                 if (e instanceof IRTemp
                         || e instanceof IRConst
                         || tempExprMap.containsKey(e)) {
-                    continue;
                 } else if (dfa.nodesUsingExpr(e).size() > 1 ) {
                     String tmp = newTemp();
                     tempExprMap.put(e, tmp);
diff --git a/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/InsnMapsBuilder.java b/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/InsnMapsBuilder.java
index 99f6dd0..7766e35 100644
--- a/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/InsnMapsBuilder.java
+++ b/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/InsnMapsBuilder.java
@@ -1,8 +1,6 @@
 package edu.cornell.cs.cs4120.xic.ir.visit;
 
 import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
 import java.util.Map;
 
 import edu.cornell.cs.cs4120.util.InternalCompilerError;
diff --git a/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/ListChildrenVisitor.java b/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/ListChildrenVisitor.java
index 65fc0cc..b6603de 100644
--- a/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/ListChildrenVisitor.java
+++ b/src/main/java/edu/cornell/cs/cs4120/xic/ir/visit/ListChildrenVisitor.java
@@ -1,7 +1,6 @@
 package edu.cornell.cs.cs4120.xic.ir.visit;
 
 import edu.cornell.cs.cs4120.xic.ir.IRNode;
-import edu.cornell.cs.cs4120.xic.ir.IRTemp;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/main/java/kc875/asm/ASMInstrComment.java b/src/main/java/kc875/asm/ASMInstrComment.java
index 6f2906b..d5605b9 100644
--- a/src/main/java/kc875/asm/ASMInstrComment.java
+++ b/src/main/java/kc875/asm/ASMInstrComment.java
@@ -2,10 +2,7 @@
 
 import kc875.asm.visit.ASMinstrBareVisitor;
 
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
+import java.util.*;
 
 public class ASMInstrComment extends ASMInstr {
     private String comment;
@@ -25,7 +22,7 @@ public String toString() {
     @Override
     public boolean equals(Object obj) {
         return obj instanceof ASMInstrComment &&
-                ((ASMInstrComment) obj).getComment() == this.comment;
+                Objects.equals(((ASMInstrComment) obj).getComment(), this.comment);
     }
 
     @Override
diff --git a/src/main/java/kc875/asm/dfa/ASMGraph.java b/src/main/java/kc875/asm/dfa/ASMGraph.java
index 11208ce..12986fa 100644
--- a/src/main/java/kc875/asm/dfa/ASMGraph.java
+++ b/src/main/java/kc875/asm/dfa/ASMGraph.java
@@ -94,18 +94,10 @@ public ASMGraph(List<ASMInstr> instrs) {
         }
     }
 
-    public BiMap<Node, ASMInstr> getNodeInstrMap() {
-        return nodeInstrMap;
-    }
-
     public Node getNode(ASMInstr i) {
         return nodeInstrMap.inverse().get(i);
     }
 
-    public ASMInstr getInstr(Node n) {
-        return nodeInstrMap.get(n);
-    }
-
     /**
      * Check if an instruction needs a CFG edge to the instruction immediately
      * following it. This is false if the instruction is non-fallthrough, e.g.
diff --git a/src/main/java/kc875/asm/dfa/InterferenceGraph.java b/src/main/java/kc875/asm/dfa/InterferenceGraph.java
index 5fc4898..b0ffdfd 100644
--- a/src/main/java/kc875/asm/dfa/InterferenceGraph.java
+++ b/src/main/java/kc875/asm/dfa/InterferenceGraph.java
@@ -3,10 +3,8 @@
 import com.google.common.collect.BiMap;
 import com.google.common.collect.HashBiMap;
 import kc875.asm.ASMExprRT;
-import kc875.asm.ASMInstr;
 import kc875.cfg.Graph;
 
-import java.util.List;
 import java.util.HashSet;
 
 public class InterferenceGraph extends Graph<ASMExprRT> {
diff --git a/src/main/java/kc875/asm/visit/ASMDirectivesVisitor.java b/src/main/java/kc875/asm/visit/ASMDirectivesVisitor.java
index 7c618a4..690888c 100644
--- a/src/main/java/kc875/asm/visit/ASMDirectivesVisitor.java
+++ b/src/main/java/kc875/asm/visit/ASMDirectivesVisitor.java
@@ -16,19 +16,6 @@ public ASMDirectivesVisitor(Map<String, List<String>> dvs) {
         dispatchVectorLayouts = dvs;
     }
 
-    private String returnTypeName(TypeT type) {
-        if (type instanceof TypeTList) {
-            TypeTList tuple = (TypeTList) type;
-            ArrayList<String> types = new ArrayList<>();
-            tuple.getTTauList().forEach((t) -> types.add(returnTypeName(t)));
-            return "t" + tuple.getLength() + String.join("", types);
-        } else if (type instanceof TypeTUnit) { //TypeTUnit
-            return "p";
-        } else {
-            return typeName(type);
-        }
-    }
-
     private String typeName(TypeT type) {
         if (type instanceof TypeTList) {
             TypeTList tuple = (TypeTList) type;
diff --git a/src/main/java/kc875/asm/visit/RegAllocationColoringVisitor.java b/src/main/java/kc875/asm/visit/RegAllocationColoringVisitor.java
index b64049e..d54dbe1 100644
--- a/src/main/java/kc875/asm/visit/RegAllocationColoringVisitor.java
+++ b/src/main/java/kc875/asm/visit/RegAllocationColoringVisitor.java
@@ -661,27 +661,6 @@ private boolean isMoveInstruction(ASMInstr i) {
         //return i.destIsDefButNoUse();
     }
 
-    //GETTERS (for testing)
-    public ASMGraph getCfg() {
-        return cfg;
-    }
-
-    public InterferenceGraph getInterference() {
-        return interference;
-    }
-
-    public ASMLiveVariableDFA getLiveness() {
-        return liveness;
-    }
-
-    public List<ASMInstr> getInstrs() {
-        return instrs;
-    }
-
-    public int getK() {
-        return K;
-    }
-
     //FOR TESTING ONLY!
     //USED FOR TESTING ONLY - stops after build graph step so we can test for invariants
     public void buildInterferenceGraph(List<ASMInstr> instrs) {
diff --git a/src/main/java/kc875/asm/visit/RegAllocationOptimVisitor.java b/src/main/java/kc875/asm/visit/RegAllocationOptimVisitor.java
index 166a25b..9d6dc15 100644
--- a/src/main/java/kc875/asm/visit/RegAllocationOptimVisitor.java
+++ b/src/main/java/kc875/asm/visit/RegAllocationOptimVisitor.java
@@ -40,10 +40,12 @@ private List<ASMInstr> allocateFunc(List<ASMInstr> instrs){
         return v.allocate(instrs);
     }
 
-    private void printInstrs(List<ASMInstr> instrs){
-        for (ASMInstr in : instrs) {
-            System.out.println(in);
-        }
-        System.out.println();
-    }
+// --Commented out by Inspection START (2019-05-30 23:39):
+//    private void printInstrs(List<ASMInstr> instrs){
+//        for (ASMInstr in : instrs) {
+//            System.out.println(in);
+//        }
+//        System.out.println();
+//    }
+// --Commented out by Inspection STOP (2019-05-30 23:39)
 }
diff --git a/src/main/java/kc875/ast/TypeTList.java b/src/main/java/kc875/ast/TypeTList.java
index 2cec9f9..c12a68f 100644
--- a/src/main/java/kc875/ast/TypeTList.java
+++ b/src/main/java/kc875/ast/TypeTList.java
@@ -23,9 +23,9 @@ public int getLength(){
 
     @Override
     public String toString() {
-        String s = "(" + tTauList.get(0).toString();
+        StringBuilder s = new StringBuilder("(" + tTauList.get(0).toString());
         for (int i = 1; i < tTauList.size(); i++) {
-            s = s + "," + tTauList.get(i).toString();
+            s.append(",").append(tTauList.get(i).toString());
         }
         return s + ")";
     }
diff --git a/src/test/java/edu/cornell/cs/cs4120/xic/ir/dfa/AvailableExprsDFATest.java b/src/test/java/edu/cornell/cs/cs4120/xic/ir/dfa/AvailableExprsDFATest.java
index bb50282..ee4a46b 100644
--- a/src/test/java/edu/cornell/cs/cs4120/xic/ir/dfa/AvailableExprsDFATest.java
+++ b/src/test/java/edu/cornell/cs/cs4120/xic/ir/dfa/AvailableExprsDFATest.java
@@ -24,10 +24,6 @@ public void setUp() {
         availableExprsDFA = new AvailableExprsDFA(graph);
     }
 
-    @After
-    public void tearDown() {
-    }
-
     @Test
     public void testExprsContainingTemp() {
         IRTemp temp = new IRTemp("temp");
diff --git a/src/test/java/edu/cornell/cs/cs4120/xic/ir/dfa/LivenessDFATest.java b/src/test/java/edu/cornell/cs/cs4120/xic/ir/dfa/LivenessDFATest.java
index 99fc9b4..9d55b5d 100644
--- a/src/test/java/edu/cornell/cs/cs4120/xic/ir/dfa/LivenessDFATest.java
+++ b/src/test/java/edu/cornell/cs/cs4120/xic/ir/dfa/LivenessDFATest.java
@@ -20,10 +20,6 @@ public void setUp() {
         livenessDFA = new LivenessDFA(graph);
     }
 
-    @After
-    public void tearDown() {
-    }
-
     private boolean twoListsEqual(List a, List b) {
         return (a.size() == b.size() &&
                 a.containsAll(b) && b.containsAll(a));
diff --git a/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/ASMTranslationVisitorTest.java b/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/ASMTranslationVisitorTest.java
index 55845cf..401ed0f 100644
--- a/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/ASMTranslationVisitorTest.java
+++ b/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/ASMTranslationVisitorTest.java
@@ -550,11 +550,8 @@ OpType.MUL, new IRTemp("b"), new IRConst(4)
     }
 
     @Before
-    public void setUp() throws Exception {
+    public void setUp() {
         visitor = new ASMTranslationVisitor();
     }
 
-    @After
-    public void tearDown() throws Exception {
-    }
 }
diff --git a/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/CSEVisitorTest.java b/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/CSEVisitorTest.java
index 4140d82..e001e1b 100644
--- a/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/CSEVisitorTest.java
+++ b/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/CSEVisitorTest.java
@@ -22,10 +22,6 @@ public void setUp() {
         cseVisitor = new CommonSubexprElimVisitor();
     }
 
-    @After
-    public void tearDown() {
-    }
-
     private boolean twoListsEqual(List a, List b) {
         return (a.size() == b.size() &&
                 a.containsAll(b) && b.containsAll(a));
diff --git a/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/ConstantFoldVisitorTest.java b/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/ConstantFoldVisitorTest.java
index 46b90c1..24cb77a 100644
--- a/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/ConstantFoldVisitorTest.java
+++ b/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/ConstantFoldVisitorTest.java
@@ -148,11 +148,8 @@ public void cjumpFalseNoLabelTest() {
     }
 
     @Before
-    public void setUp() throws Exception {
+    public void setUp() {
         visitor = new ConstantFoldVisitor(new IRNodeFactory_c());
     }
 
-    @After
-    public void tearDown() throws Exception {
-    }
 }
\ No newline at end of file
diff --git a/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/CopyPropagationAndDCETest.java b/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/CopyPropagationAndDCETest.java
index f86ad3b..a7a0aa5 100644
--- a/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/CopyPropagationAndDCETest.java
+++ b/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/CopyPropagationAndDCETest.java
@@ -21,10 +21,6 @@ public void setUp() {
         deadCodeElimVisitor = new DeadCodeElimVisitor();
     }
 
-    @After
-    public void tearDown() {
-    }
-
     @Test
     public void sanityCheck() {
         copyPropagationVisitor.run(
diff --git a/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/LoweringVisitorTest.java b/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/LoweringVisitorTest.java
index 84d5c74..068777e 100644
--- a/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/LoweringVisitorTest.java
+++ b/src/test/java/edu/cornell/cs/cs4120/xic/ir/visit/LoweringVisitorTest.java
@@ -281,11 +281,8 @@ public void testReordering0() {
     }
 
     @Before
-    public void setUp() throws Exception {
+    public void setUp() {
         visitor = new LoweringVisitor(new IRNodeFactory_c());
     }
 
-    @After
-    public void tearDown() throws Exception {
-    }
 }
\ No newline at end of file
diff --git a/src/test/java/kc875/ast/IRTranslationVisitorTest.java b/src/test/java/kc875/ast/IRTranslationVisitorTest.java
index 9748763..cddbfee 100644
--- a/src/test/java/kc875/ast/IRTranslationVisitorTest.java
+++ b/src/test/java/kc875/ast/IRTranslationVisitorTest.java
@@ -27,10 +27,6 @@ public void setUp() {
         l = new XiTokenLocation(0,0);
     }
 
-    @After
-    public void tearDown() {
-    }
-
     @Test
     public void testFuncName0() {
         TypeSymTableFunc t = new TypeSymTableFunc(
diff --git a/src/test/java/kc875/symboltable/SymbolTableTest.java b/src/test/java/kc875/symboltable/SymbolTableTest.java
index 54ce738..430aabf 100644
--- a/src/test/java/kc875/symboltable/SymbolTableTest.java
+++ b/src/test/java/kc875/symboltable/SymbolTableTest.java
@@ -41,7 +41,4 @@ public void setUp() {
         table = createInstance();
     }
 
-    @After
-    public void tearDown() {
-    }
 }
\ No newline at end of file