HBASE-11167 Avoid usage of java.rmi package Exception in MemStore. (Anoop)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1595100 13f79535-47bb-0310-9956-ffa450edef68

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java

@@ -21,7 +21,6 @@ package org.apache.hadoop.hbase.regionserver;
 
 import java.lang.management.ManagementFactory;
 import java.lang.management.RuntimeMXBean;
-import java.rmi.UnexpectedException;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Iterator;
@@ -176,14 +175,15 @@ public class DefaultMemStore implements MemStore {
   /**
    * The passed snapshot was successfully persisted; it can be let go.
    * @param id Id of the snapshot to clean out.
-   * @throws UnexpectedException
+   * @throws UnexpectedStateException
    * @see #snapshot()
    */
   @Override
-  public void clearSnapshot(long id) throws UnexpectedException {
+  public void clearSnapshot(long id) throws UnexpectedStateException {
     MemStoreLAB tmpAllocator = null;
     if (this.snapshotId != id) {
-      throw new UnexpectedException("Current snapshot id is " + this.snapshotId + ",passed " + id);
+      throw new UnexpectedStateException("Current snapshot id is " + this.snapshotId + ",passed "
+          + id);
     }
     // OK. Passed in snapshot is same as current snapshot. If not-empty,
     // create a new snapshot and let the old one go.

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MemStore.java

@@ -17,7 +17,6 @@
  */
 package org.apache.hadoop.hbase.regionserver;
 
-import java.rmi.UnexpectedException;
 import java.util.List;
 
 import org.apache.hadoop.classification.InterfaceAudience;
@@ -44,9 +43,10 @@ public interface MemStore extends HeapSize {
   /**
    * Clears the current snapshot of the Memstore.
    * @param id
+   * @throws UnexpectedStateException
    * @see #snapshot()
    */
-  void clearSnapshot(long id) throws UnexpectedException;
+  void clearSnapshot(long id) throws UnexpectedStateException;
 
   /**
    * On flush, how much memory we will clear.

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/UnexpectedStateException.java

@@ -0,0 +1,43 @@
+/**
+ * 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.
+ */
+package org.apache.hadoop.hbase.regionserver;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.hbase.HBaseIOException;
+
+@InterfaceAudience.Private
+public class UnexpectedStateException extends HBaseIOException {
+
+  private static final long serialVersionUID = -6727953144066746071L;
+
+  public UnexpectedStateException() {
+    super();
+  }
+
+  public UnexpectedStateException(String message) {
+    super(message);
+  }
+
+  public UnexpectedStateException(String message, Throwable cause) {
+    super(message, cause);
+  }
+
+  public UnexpectedStateException(Throwable cause) {
+    super(cause);
+  }
+}

hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultMemStore.java

@@ -21,7 +21,6 @@ package org.apache.hadoop.hbase.regionserver;
 import java.io.IOException;
 import java.lang.management.ManagementFactory;
 import java.lang.management.MemoryMXBean;
-import java.rmi.UnexpectedException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -961,7 +960,7 @@ public class TestDefaultMemStore extends TestCase {
     return ROW_COUNT;
   }
 
-  private long runSnapshot(final DefaultMemStore hmc) throws UnexpectedException {
+  private long runSnapshot(final DefaultMemStore hmc) throws UnexpectedStateException {
     // Save off old state.
     int oldHistorySize = hmc.snapshot.size();
     MemStoreSnapshot snapshot = hmc.snapshot();

hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreChunkPool.java

@@ -21,7 +21,6 @@ package org.apache.hadoop.hbase.regionserver;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
-import java.rmi.UnexpectedException;
 import java.util.List;
 import java.util.Random;
 
@@ -97,7 +96,7 @@ public class TestMemStoreChunkPool {
   }
 
   @Test
-  public void testPuttingBackChunksAfterFlushing() throws UnexpectedException {
+  public void testPuttingBackChunksAfterFlushing() throws UnexpectedStateException {
     byte[] row = Bytes.toBytes("testrow");
     byte[] fam = Bytes.toBytes("testfamily");
     byte[] qf1 = Bytes.toBytes("testqualifier1");
@@ -132,7 +131,7 @@ public class TestMemStoreChunkPool {
 
   @Test
   public void testPuttingBackChunksWithOpeningScanner()
-      throws UnexpectedException {
+      throws UnexpectedStateException {
     byte[] row = Bytes.toBytes("testrow");
     byte[] fam = Bytes.toBytes("testfamily");
     byte[] qf1 = Bytes.toBytes("testqualifier1");