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Posted to commits@clerezza.apache.org by re...@apache.org on 2010/07/19 16:10:24 UTC

svn commit: r965491 - /incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.utils/src/main/java/org/apache/clerezza/utils/IteratorMerger.java

Author: reto
Date: Mon Jul 19 14:10:24 2010
New Revision: 965491

URL: http://svn.apache.org/viewvc?rev=965491&view=rev
Log:
IteartorMerger to merge an empty iterator of iterator

Modified:
    incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.utils/src/main/java/org/apache/clerezza/utils/IteratorMerger.java

Modified: incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.utils/src/main/java/org/apache/clerezza/utils/IteratorMerger.java
URL: http://svn.apache.org/viewvc/incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.utils/src/main/java/org/apache/clerezza/utils/IteratorMerger.java?rev=965491&r1=965490&r2=965491&view=diff
==============================================================================
--- incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.utils/src/main/java/org/apache/clerezza/utils/IteratorMerger.java (original)
+++ incubator/clerezza/trunk/org.apache.clerezza.parent/org.apache.clerezza.utils/src/main/java/org/apache/clerezza/utils/IteratorMerger.java Mon Jul 19 14:10:24 2010
@@ -19,6 +19,7 @@
 
 package org.apache.clerezza.utils;
 
+import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Iterator;
 
@@ -70,7 +71,11 @@ public class IteratorMerger<T> implement
 
 	private void init(Iterator<Iterator<T>> baseIterators) {
 		this.baseIterators = baseIterators;
-		current = baseIterators.next();
+		if (baseIterators.hasNext()) {
+			current = baseIterators.next();
+		} else {
+			current = new ArrayList<T>(0).iterator();
+		}
 	}
 
 	private void updateCurrentIfNeeded() {