Remove redundant interfaces

src/main/java/mikera/ai/Tasks.java

@@ -50,7 +50,7 @@ public R run(T actor, P param) {
 				return task.run(actor, param);
 			}
 		};
-	};
+	}
 
 	public static <T,P,R> Task<T,P,R>  prioritise(
 			final PersistentList<PriorityFunction<T,P>> ps,

src/main/java/mikera/data/Data.java

@@ -4,7 +4,6 @@
 import java.io.IOException;
 import java.io.ObjectInput;
 import java.io.ObjectOutput;
-import java.io.Serializable;
 import java.nio.ByteBuffer;
 import java.util.AbstractList;
 import java.util.Iterator;
@@ -28,7 +27,7 @@
  *
  */
 @Mutable
-public final class Data extends AbstractList<Byte> implements List<Byte>, Cloneable, Serializable, Comparable<Data>, Externalizable {
+public final class Data extends AbstractList<Byte> implements Cloneable, Comparable<Data>, Externalizable {
 	private static final long serialVersionUID = 293989965333996558L;
 	private static final int DEFAULT_DATA_INCREMENT=50;
 

src/main/java/mikera/engine/BaseObject.java

@@ -314,4 +314,12 @@ public void flattenProperties() {
     	this.local = flattened.local;
     	this.inherited = null;
     }
+
+	@Override
+	public int hashCode() {
+		// TODO should we have a proper hashcode?
+		return super.hashCode();
+	}
+
+
 }

src/main/java/mikera/engine/BitGrid.java

@@ -10,7 +10,7 @@
  *
  */
 @Mutable
-public final class BitGrid extends BaseGrid<Boolean> implements Cloneable {
+public final class BitGrid extends BaseGrid<Boolean> {
 	private static final int GROW_BORDER=1;
 
 	private static final int XLOWBITS=2;

src/main/java/mikera/util/Arrays.java

@@ -69,7 +69,7 @@ public static <T> T[] deleteElement(T[] array, int i) {
 
 	public static float[] deleteElement(float[] array, int i) {
 		int count=array.length;
-		float[] newarray=new float[count-1];;
+		float[] newarray=new float[count-1];
 
 		System.arraycopy(array, 0, newarray, 0, i);
 		System.arraycopy(array, i+1, newarray, i, count-i-1);

src/main/java/mikera/util/TextUtils.java

@@ -184,7 +184,7 @@ public static String toHexString(int n) {
 		for (int i=0; i<8; i++) {
 			chars[7-i]=toHexChar(n);
 			n>>=4;
-		};
+		}
 		return new String(chars);
 	}
 

src/test/java/mikera/engine/TestGrid.java

@@ -151,7 +151,7 @@ public Object visit(int x1, int y1, int z1, int x2, int y2, int z2,
 
 			return null;
 		}	
-	};
+	}
 
 
 	@Test public void testTreeGidBlockSet() {

src/test/java/mikera/engine/TestOctreap.java

@@ -358,7 +358,7 @@ public Object visit(int x1, int y1, int z1, int x2, int y2, int z2,
 			oct.setBlock(x1, y1, z1, x2, y2, z2, value);
 			return null;
 		}	
-	};
+	}
 
 	@Test public void testBlock2x() {
 		Octreap<Integer> m=new Octreap<>();

src/test/java/mikera/persistent/TestPersistentLongMap.java

@@ -165,7 +165,7 @@ public void testNullAdds(PersistentMap<Long,String> pm) {
 	public void testEquals(PersistentMap<Long,String> pm) {
 		PersistentMap<Long,String> pm2=pm.include(2L,new String("Hello"));
 		PersistentMap<Long,String> pm3=pm.include(2L,new String("Hello"));
-		assertEquals(pm2,pm3);;	
+		assertEquals(pm2,pm3);
 	}
 
 

src/test/java/mikera/persistent/TestPersistentMap.java

@@ -177,7 +177,7 @@ public void testNullAdds(PersistentMap<Integer,String> pm) {
 	public void testEquals(PersistentMap<Integer,String> pm) {
 		PersistentMap<Integer,String> pm2=pm.include(2,new String("Hello"));
 		PersistentMap<Integer,String> pm3=pm.include(2,new String("Hello"));
-		assertEquals(pm2,pm3);;	
+		assertEquals(pm2,pm3);
 	}