diff --git a/contrib/extraction/CHANGES.txt b/contrib/extraction/CHANGES.txt
index 1609b2da955..d31fa2cffba 100644
--- a/contrib/extraction/CHANGES.txt
+++ b/contrib/extraction/CHANGES.txt
@@ -23,6 +23,9 @@ $Id:$
 
 * SOLR-1567: Upgrade to Tika 0.5, which upgrades many of the underlying libraries (PDFBox, for example) too (gsingers)
 
+* SOLR-1756: The date.format setting causes ClassCastException when enabled and the config code that
+  parses this setting does not properly use the same iterator instance. (Christoph Brill, Mark Miller)
+
 ================== Release 1.4.0 ==================
 
 1. SOLR-284:  Added in support for extraction. (Eric Pugh, Chris Harris, gsingers)
diff --git a/contrib/extraction/src/main/java/org/apache/solr/handler/extraction/ExtractingRequestHandler.java b/contrib/extraction/src/main/java/org/apache/solr/handler/extraction/ExtractingRequestHandler.java
index 32cb7b3a13c..14cfc7efc14 100644
--- a/contrib/extraction/src/main/java/org/apache/solr/handler/extraction/ExtractingRequestHandler.java
+++ b/contrib/extraction/src/main/java/org/apache/solr/handler/extraction/ExtractingRequestHandler.java
@@ -35,6 +35,8 @@ import org.slf4j.LoggerFactory;
 import java.io.File;
 import java.util.Collection;
 import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map;
 
 
 /**
@@ -81,8 +83,9 @@ public class ExtractingRequestHandler extends ContentStreamHandlerBase implement
       NamedList configDateFormats = (NamedList) initArgs.get(DATE_FORMATS);
       if (configDateFormats != null && configDateFormats.size() > 0) {
         dateFormats = new HashSet<String>();
-        while (configDateFormats.iterator().hasNext()) {
-          String format = (String) configDateFormats.iterator().next();
+        Iterator<Map.Entry> it = configDateFormats.iterator();
+        while (it.hasNext()) {
+          String format = (String) it.next().getValue();
           log.info("Adding Date Format: " + format);
           dateFormats.add(format);
         }