Merge github.com:ReadyTalk/avian

classpath/java/util/AbstractList.java

@@ -15,6 +15,11 @@ public abstract class AbstractList<T> extends AbstractCollection<T>
 {
   protected int modCount;
 
+  public boolean add(T o) {
+    add(size(), o);
+    return true;
+  }
+
   public Iterator<T> iterator() {
     return listIterator();
   }

classpath/java/util/Arrays.java

@@ -42,6 +42,37 @@ public class Arrays {
     }
   }
 
+  public static int hashCode(Object[] array) {
+    if(array == null) {
+      return 9023;
+    }
+
+    int hc = 823347;
+    for(Object o : array) {
+      hc += o != null ? o.hashCode() : 54267;
+      hc *= 3;
+    }
+    return hc;
+  }
+
+  public static boolean equals(Object[] a, Object[] b) {
+    if(a == b) {
+      return true;
+    }
+    if(a == null || b == null) {
+      return false;
+    }
+    if(a.length != b.length) {
+      return false;
+    }
+    for(int i = 0; i < a.length; i++) {
+      if(!equal(a[i], b[i])) {
+        return false;
+      }
+    }
+    return true;
+  }
+
   public static <T> List<T> asList(final T ... array) {
     return new List<T>() {
       public String toString() {

test/Arrays.java

@@ -77,5 +77,22 @@ public class Arrays {
       array[0] = Integer.valueOf(42);
       expect(array[0].intValue() == 42);
     }
+
+    { Object[] a = new Object[3];
+      Object[] b = new Object[3];
+
+      expect(java.util.Arrays.equals(a, b));
+      a[0] = new Object();
+      expect(! java.util.Arrays.equals(a, b));
+      expect(! java.util.Arrays.equals(b, new Object[4]));
+      expect(! java.util.Arrays.equals(a, null));
+      expect(! java.util.Arrays.equals(null, b));
+      expect(java.util.Arrays.equals(null, null));
+      b[0] = a[0];
+      expect(java.util.Arrays.equals(a, b));
+
+      java.util.Arrays.hashCode(a);
+      java.util.Arrays.hashCode(null);
+    }
   }
 }