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diff --git a/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/miscellaneous/TestStemmerOverrideFilter.java b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/miscellaneous/TestStemmerOverrideFilter.java
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+++ b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/miscellaneous/TestStemmerOverrideFilter.java
@@ -0,0 +1,43 @@
+package org.apache.lucene.analysis.miscellaneous;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.lucene.analysis.BaseTokenStreamTestCase;
+import org.apache.lucene.analysis.KeywordTokenizer;
+import org.apache.lucene.analysis.PorterStemFilter;
+import org.apache.lucene.analysis.TokenStream;
+import org.apache.lucene.analysis.Tokenizer;
+
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+public class TestStemmerOverrideFilter extends BaseTokenStreamTestCase {
+  public void testOverride() throws IOException {
+    // lets make booked stem to books
+    // the override filter will convert "booked" to "books",
+    // but also mark it with KeywordAttribute so Porter will not change it.
+    Map<String,String> dictionary = new HashMap<String,String>();
+    dictionary.put("booked", "books");
+    Tokenizer tokenizer = new KeywordTokenizer(new StringReader("booked"));
+    TokenStream stream = new PorterStemFilter(
+        new StemmerOverrideFilter(TEST_VERSION_CURRENT, tokenizer, dictionary));
+    assertTokenStreamContents(stream, new String[] { "books" });
+  }
+}