Remove unncessary clone method and related tests

VadereState/src/org/vadere/state/attributes/Attributes.java

@@ -22,12 +22,4 @@ public abstract class Attributes extends DefaultSealable implements Cloneable {
 
 	public Attributes() {}
 
-	public Attributes cloneAttributes() {
-		try {
-			return (Attributes) super.clone();
-		} catch (CloneNotSupportedException e) {
-			throw new RuntimeException("This should never happen because the base class Attributes is Cloneable.");
-		}
-	}
-
 }

VadereState/tests/org/vadere/state/attributes/TestAttributesCloneable.java

 package org.vadere.state.attributes;
 
-import static org.junit.Assert.*;
-
 import org.junit.Test;
 
 public class TestAttributesCloneable {
 	
-	private static class SimpleAttributes extends Attributes {
-		int id = 1;
-	}
-
-	private static class NestedAttributes extends Attributes {
-		int id = 1;
-		SimpleAttributes c = new SimpleAttributes();
-		SimpleCloneable d = new SimpleCloneable();
-	}
-
-	private static class SimpleCloneable implements Cloneable {
-		int id = 1;
-	}
-
 	private static class NotCloneableClass {
 		@Override
 		public Object clone() throws CloneNotSupportedException {
@@ -27,30 +11,6 @@ public class TestAttributesCloneable {
 		}
 	}
 
-	@Test
-	public void testSimpleCloneable() {
-		try {
-			SimpleAttributes a = new SimpleAttributes();
-			SimpleAttributes b = (SimpleAttributes) a.cloneAttributes();
-			assertEquals(a.id, b.id);
-		} catch (Exception e) {
-			fail("clone should not throw exception");
-		}
-	}
-
-	@Test
-	public void testExtendedCloneable() {
-		try {
-			NestedAttributes a = new NestedAttributes();
-			NestedAttributes b = (NestedAttributes) a.cloneAttributes();
-			assertEquals(a.id, b.id);
-			assertEquals(a.c.id, b.c.id);
-			assertEquals(a.d.id, b.d.id);
-		} catch (Exception e) {
-			fail("clone should not throw exception");
-		}
-	}
-	
 	@Test(expected=CloneNotSupportedException.class)
 	public void testNotCloneableClass() throws CloneNotSupportedException {
 		new NotCloneableClass().clone();