fix javadocs

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1374006 13f79535-47bb-0310-9956-ffa450edef68

lucene/core/src/java/org/apache/lucene/index/MergePolicy.java

@@ -243,6 +243,10 @@ public abstract class MergePolicy implements java.io.Closeable, Cloneable {
     }
   }
 
+  /** Thrown when a merge was explicity aborted because
+   *  {@link IndexWriter#close(boolean)} was called with
+   *  <code>false</code>.  Normally this exception is
+   *  privately caught and suppresed by {@link IndexWriter}.  */
   public static class MergeAbortedException extends IOException {
     public MergeAbortedException() {
       super("merge is aborted");

lucene/core/src/java/org/apache/lucene/index/MultiDocsAndPositionsEnum.java

@@ -143,6 +143,8 @@ public final class MultiDocsAndPositionsEnum extends DocsAndPositionsEnum {
   }
 
   // TODO: implement bulk read more efficiently than super
+  /** Holds a {@link DocsAndPositionsEnum} along with the
+   *  corresponding {@link ReaderSlice}. */
   public final static class EnumWithSlice {
     public DocsAndPositionsEnum docsAndPositionsEnum;
     public ReaderSlice slice;

lucene/core/src/java/org/apache/lucene/index/MultiDocsEnum.java

@@ -122,6 +122,8 @@ public final class MultiDocsEnum extends DocsEnum {
   }
 
   // TODO: implement bulk read more efficiently than super
+  /** Holds a {@link DocsEnum} along with the
+   *  corresponding {@link ReaderSlice}. */
   public final static class EnumWithSlice {
     public DocsEnum docsEnum;
     public ReaderSlice slice;