Update to ASM 7.1

pom.xml

@@ -15,9 +15,9 @@
 
   <dependencies>
     <dependency>
-      <groupId>asm</groupId>
+      <groupId>org.ow2.asm</groupId>
       <artifactId>asm</artifactId>
-      <version>3.1</version>
+      <version>7.1</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>

src/main/java/org/apache/harmony/pack200/Pack200ClassReader.java

@@ -41,7 +41,7 @@ public class Pack200ClassReader extends ClassReader {
         // Doing this to check whether last load-constant instruction was ldc (18) or ldc_w (19)
         // TODO:  Assess whether this impacts on performance
         int unsignedShort = super.readUnsignedShort(index);
-        if(b[index - 1] == 19) {
+        if(index > 0 && b[index - 1] == 19) {
             lastUnsignedShort = unsignedShort;
         } else {
             lastUnsignedShort = Short.MIN_VALUE;

src/main/java/org/apache/harmony/pack200/Segment.java

@@ -32,12 +32,13 @@ import org.objectweb.asm.ClassVisitor;
 import org.objectweb.asm.FieldVisitor;
 import org.objectweb.asm.Label;
 import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
 import org.objectweb.asm.Type;
 
 /**
  * A Pack200 archive consists of one or more Segments.
  */
-public class Segment implements ClassVisitor {
+public class Segment extends ClassVisitor {
 
     private SegmentHeader segmentHeader;
     private CpBands cpBands;
@@ -54,6 +55,10 @@ public class Segment implements ClassVisitor {
     private boolean stripDebug;
     private Attribute[] nonStandardAttributePrototypes;
 
+    public Segment() {
+        super(Opcodes.ASM7);
+    }
+
     /**
      * The main method on Segment. Reads in all the class files, packs them and
      * then writes the packed segment out to the given OutputStream.
@@ -265,7 +270,11 @@ public class Segment implements ClassVisitor {
      * It delegates to BcBands for bytecode related visits and to ClassBands for
      * everything else.
      */
-    public class SegmentMethodVisitor implements MethodVisitor {
+    public class SegmentMethodVisitor extends MethodVisitor {
+
+        public SegmentMethodVisitor() {
+            super(Opcodes.ASM7);
+        }
 
         public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
             return new SegmentAnnotationVisitor(
@@ -394,7 +403,7 @@ public class Segment implements ClassVisitor {
         }
 
         public void visitMethodInsn(int opcode, String owner, String name,
-                String desc) {
+                String desc, boolean isInterface) {
             bcBands.visitMethodInsn(opcode, owner, name, desc);
         }
 
@@ -425,7 +434,7 @@ public class Segment implements ClassVisitor {
      * SegmentAnnotationVisitor implements <code>AnnotationVisitor</code> to
      * visit Annotations found in a class file.
      */
-    public class SegmentAnnotationVisitor implements AnnotationVisitor {
+    public class SegmentAnnotationVisitor extends AnnotationVisitor {
 
         private int context = -1;
         private int parameter = -1;
@@ -442,17 +451,20 @@ public class Segment implements ClassVisitor {
 
         public SegmentAnnotationVisitor(int context, String desc,
                 boolean visible) {
+            super(Opcodes.ASM7);
             this.context = context;
             this.desc = desc;
             this.visible = visible;
         }
 
         public SegmentAnnotationVisitor(int context) {
+            super(Opcodes.ASM7);
             this.context = context;
         }
 
         public SegmentAnnotationVisitor(int context, int parameter,
                 String desc, boolean visible) {
+            super(Opcodes.ASM7);
             this.context = context;
             this.parameter = parameter;
             this.desc = desc;
@@ -474,7 +486,7 @@ public class Segment implements ClassVisitor {
             nameRU.add(name);
             nestTypeRS.add(desc);
             nestPairN.add(new Integer(0));
-            return new AnnotationVisitor() {
+            return new AnnotationVisitor(Opcodes.ASM7) {
                 public void visit(String name, Object value) {
                     Integer numPairs = (Integer) nestPairN.remove(nestPairN.size() - 1);
                     nestPairN.add(new Integer(numPairs.intValue() + 1));
@@ -537,9 +549,9 @@ public class Segment implements ClassVisitor {
             values.add(value);
         }
     }
-    
+
-    public class ArrayVisitor implements AnnotationVisitor  {
+    public class ArrayVisitor extends AnnotationVisitor  {
-        
+
         private int indexInCaseArrayN;
         private List caseArrayN;
         private List values;
@@ -547,13 +559,14 @@ public class Segment implements ClassVisitor {
         private List T;
 
         public ArrayVisitor(List caseArrayN, List T, List nameRU, List values) {
+            super(Opcodes.ASM7);
             this.caseArrayN = caseArrayN;
             this.T = T;
             this.nameRU = nameRU;
             this.values = values;
             this.indexInCaseArrayN = caseArrayN.size() - 1;
         }
-        
+
         public void visit(String name, Object value) {
             Integer numCases = (Integer) caseArrayN.remove(indexInCaseArrayN);
             caseArrayN.add(indexInCaseArrayN, new Integer(numCases.intValue() + 1));
@@ -594,7 +607,11 @@ public class Segment implements ClassVisitor {
      * SegmentFieldVisitor implements <code>FieldVisitor</code> to visit the
      * metadata relating to fields in a class file.
      */
-    public class SegmentFieldVisitor implements FieldVisitor {
+    public class SegmentFieldVisitor extends FieldVisitor {
+
+        public SegmentFieldVisitor() {
+            super(Opcodes.ASM7);
+        }
 
         public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
             return new SegmentAnnotationVisitor(MetadataBandGroup.CONTEXT_FIELD,