ODE-1074:Change the method name "contains" to "find".

The method tries to find an Object in Collection c that deep equals to the Object t1.
If found, return the found object, otherwise return null.
Thus, rename the method as "find" should be more clear than "contains" since "contains" is prone to ask whether something is contained or not and return true or false.

bpel-nobj/src/main/java/org/apache/ode/bpel/obj/migrate/DeepEqualityHelper.java

@@ -110,7 +110,7 @@ public Boolean visitMap(Object obj, Object other) {
 		Set ks2 = m2.keySet();
 		for (Object k1 : ks1){
 			st.push(k1.toString());
-			Object k2 = contains(ks2, k1);
+			Object k2 = find(ks2, k1);
 			if (k2 == null){
 				if (!logFalseThrough){
 					__log.debug("Unequal in Map: cant find key. " + st + "\n missing key: " + k1);
@@ -175,7 +175,7 @@ public Boolean visitSet(Object obj, Object other){
 		while (i1.hasNext()){
 			Object o1 = i1.next();
 			st.push(":" + o1.getClass().getSimpleName());
-			if (contains(c2, o1) == null) {
+			if (find(c2, o1) == null) {
 				if (!logFalseThrough){
 					__log.debug("Unequal in Set: Object mismatch. " + st + 
 						"\n" + "can't find " + o1);
@@ -188,7 +188,7 @@ public Boolean visitSet(Object obj, Object other){
 		return true;
 	}
 
-	private Object contains(Collection c, Object t1) {
+	private Object find(Collection c, Object t1) {
 		Iterator itor = c.iterator();
 		Object t2;
 		logFalseThrough = true;