--- /dev/null
+package org.apache.lucene.index;
+
+/**
+ * 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.
+ */
+
+import org.apache.lucene.document.Document;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.store.IndexOutput;
+import org.apache.lucene.util.LuceneTestCase;
+
+public class TestAllZerosSegmentsFile extends LuceneTestCase {
+
+ public void test() throws Exception {
+ Directory dir = newDirectory();
+ RandomIndexWriter w = new RandomIndexWriter(random, dir);
+ w.addDocument(new Document());
+ w.close();
+
+ String nextSegmentsFile = IndexFileNames.fileNameFromGeneration(IndexFileNames.SEGMENTS,
+ "",
+ SegmentInfos.getCurrentSegmentGeneration(dir)+1);
+ IndexOutput out = dir.createOutput(nextSegmentsFile);
+ for(int idx=0;idx<8;idx++) {
+ out.writeByte((byte) 0);
+ }
+ out.close();
+
+ IndexReader r= IndexReader.open(dir,true);
+ assertEquals(r.numDocs(), 1);
+ r.close();
+ dir.close();
+ }
+}