HBASE-19406 Fix CompactionRequest equals and hashCode

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

@@ -136,6 +136,80 @@ public class CompactionRequestImpl implements CompactionRequest {
     return tracker;
   }
 
+  @Override
+  public int hashCode() {
+    final int prime = 31;
+    int result = 1;
+    result = prime * result + ((filesToCompact == null) ? 0 : filesToCompact.hashCode());
+    result = prime * result + ((isMajor == null) ? 0 : isMajor.hashCode());
+    result = prime * result + (isOffPeak ? 1231 : 1237);
+    result = prime * result + priority;
+    result = prime * result + ((regionName == null) ? 0 : regionName.hashCode());
+    result = prime * result + (int) (selectionTime ^ (selectionTime >>> 32));
+    result = prime * result + ((storeName == null) ? 0 : storeName.hashCode());
+    result = prime * result + (int) (totalSize ^ (totalSize >>> 32));
+    result = prime * result + ((tracker == null) ? 0 : tracker.hashCode());
+    return result;
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (this == obj) {
+      return true;
+    }
+    if (obj == null) {
+      return false;
+    }
+    if (getClass() != obj.getClass()) {
+      return false;
+    }
+    CompactionRequestImpl other = (CompactionRequestImpl) obj;
+    if (filesToCompact == null) {
+      if (other.filesToCompact != null) {
+        return false;
+      }
+    } else if (!filesToCompact.equals(other.filesToCompact)) {
+      return false;
+    }
+    if (isMajor != other.isMajor) {
+      return false;
+    }
+    if (isOffPeak != other.isOffPeak) {
+      return false;
+    }
+    if (priority != other.priority) {
+      return false;
+    }
+    if (regionName == null) {
+      if (other.regionName != null) {
+        return false;
+      }
+    } else if (!regionName.equals(other.regionName)) {
+      return false;
+    }
+    if (selectionTime != other.selectionTime) {
+      return false;
+    }
+    if (storeName == null) {
+      if (other.storeName != null) {
+        return false;
+      }
+    } else if (!storeName.equals(other.storeName)) {
+      return false;
+    }
+    if (totalSize != other.totalSize) {
+      return false;
+    }
+    if (tracker == null) {
+      if (other.tracker != null) {
+        return false;
+      }
+    } else if (!tracker.equals(other.tracker)) {
+      return false;
+    }
+    return true;
+  }
+
   @Override
   public String toString() {
     String fsList = filesToCompact.stream().filter(f -> f.getReader() != null)