X-Git-Url: http://jaekl.net/gitweb/?p=cfb.git;a=blobdiff_plain;f=prod%2Fnet%2Fjaekl%2Fcfb%2Futil%2FUtil.java;h=d1e79bdaa0742c45bb763c302d7404aaa6d44216;hp=309e20dde6e74fd672074cde15ad87aa041a6803;hb=f1c4313e9229dd2d5f7fd984169cbdb89fef4cd5;hpb=9868f50714076f9dc90e7021a45324411afd9ce1

diff --git a/prod/net/jaekl/cfb/util/Util.java b/prod/net/jaekl/cfb/util/Util.java
index 309e20d..d1e79bd 100644
--- a/prod/net/jaekl/cfb/util/Util.java
+++ b/prod/net/jaekl/cfb/util/Util.java
@@ -4,14 +4,38 @@ package net.jaekl.cfb.util;
 
 import java.io.PrintWriter;
 import java.io.StringWriter;
+import java.util.Iterator;
+import java.util.List;
 
 public class Util {
-	public static String stringify(Throwable thr) 
+	// Returns true iff. a and b contain equal items in the same order
+	public static boolean listsAreEqual(List<?> a, List<?> b)
 	{
-		StringWriter sw = new StringWriter();
-		PrintWriter pw = new PrintWriter(sw);
-		thr.printStackTrace(pw);
-		return sw.toString();
+		if ((null == a) || (null == b)) {
+			return (a == b);
+		}
+		
+		if (0 == a.size()) {
+			return (0 == b.size());
+		}
+		
+		if (a.size() != b.size()) {
+			return false;
+		}
+		
+		Iterator<?> iterA = a.iterator();
+		Iterator<?> iterB = b.iterator();
+		
+		while (iterA.hasNext()) {
+			Object elemA = iterA.next();
+			Object elemB = iterB.next();
+			
+			if (! objsAreEqual(elemA, elemB)) {
+				return false;
+			}
+		}
+		
+		return true;
 	}
 	
 	// Test for equality, while taking care to avoid 
@@ -34,4 +58,14 @@ public class Util {
 		}
 		return obj.hashCode();
 	}
+	
+	// Convert a Throwable to the string representation 
+	// that is generated by printStackTrace().
+	public static String stringify(Throwable thr) 
+	{
+		StringWriter sw = new StringWriter();
+		PrintWriter pw = new PrintWriter(sw);
+		thr.printStackTrace(pw);
+		return sw.toString();
+	}	
 }