LUCENE-2621: fix javadocs warnings

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene2621@1202835 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lucene/src/java/org/apache/lucene/index/FieldInfos.java b/lucene/src/java/org/apache/lucene/index/FieldInfos.java
index fbaf4cb..7d88c16 100644
--- a/lucene/src/java/org/apache/lucene/index/FieldInfos.java
+++ b/lucene/src/java/org/apache/lucene/index/FieldInfos.java
@@ -500,7 +500,7 @@
   /**
    * Returns <code>true</code> iff this instance is not backed by a
    * {@link org.apache.lucene.index.FieldInfos.FieldNumberBiMap}. Instances read from a directory via
-   * {@link FieldInfos#FieldInfos(Directory, String)} will always be read-only
+   * {@link FieldInfos#FieldInfos(FieldInfo[], boolean, boolean, boolean)} will always be read-only
    * since no {@link org.apache.lucene.index.FieldInfos.FieldNumberBiMap} is supplied, otherwise 
    * <code>false</code>.
    */
diff --git a/lucene/src/java/org/apache/lucene/index/Terms.java b/lucene/src/java/org/apache/lucene/index/Terms.java
index 780c85e..873639b 100644
--- a/lucene/src/java/org/apache/lucene/index/Terms.java
+++ b/lucene/src/java/org/apache/lucene/index/Terms.java
@@ -189,7 +189,7 @@
   /**
    * Returns a thread-private {@link TermsEnum} instance. Obtaining
    * {@link TermsEnum} from this method might be more efficient than using
-   * {@link #iterator()} directly since this method doesn't necessarily create a
+   * {@link #iterator(TermsEnum)} directly since this method doesn't necessarily create a
    * new {@link TermsEnum} instance.
    * <p>
    * NOTE: {@link TermsEnum} instances obtained from this method must not be
diff --git a/lucene/src/java/org/apache/lucene/index/codecs/TermVectorsReader.java b/lucene/src/java/org/apache/lucene/index/codecs/TermVectorsReader.java
index 58bcfba..45580c5 100644
--- a/lucene/src/java/org/apache/lucene/index/codecs/TermVectorsReader.java
+++ b/lucene/src/java/org/apache/lucene/index/codecs/TermVectorsReader.java
@@ -21,6 +21,7 @@
 import java.io.IOException;
 
 import org.apache.lucene.analysis.tokenattributes.OffsetAttribute; // javadocs
+import org.apache.lucene.index.DocsAndPositionsEnum; // javadocs
 import org.apache.lucene.index.Fields;
 
 /**