don't declare Exceptions that are never thrown; remove an unused variable

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@168450 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/lucene/index/SegmentMerger.java

@@ -365,7 +365,7 @@ final class SegmentMerger {
   private long lastSkipFreqPointer;
   private long lastSkipProxPointer;
 
-  private void resetSkip() throws IOException {
+  private void resetSkip() {
     skipBuffer.reset();
     lastSkipDoc = 0;
     lastSkipFreqPointer = freqOutput.getFilePointer();

src/java/org/apache/lucene/search/MultiPhraseQuery.java

@@ -130,7 +130,7 @@ public class MultiPhraseQuery extends Query {
     public Query getQuery() { return MultiPhraseQuery.this; }
     public float getValue() { return value; }
 
-    public float sumOfSquaredWeights() throws IOException {
+    public float sumOfSquaredWeights() {
       queryWeight = idf * getBoost();             // compute query weight
       return queryWeight * queryWeight;           // square it
     }

src/java/org/apache/lucene/search/MultiSearcher.java

@@ -56,7 +56,7 @@ public class MultiSearcher extends Searcher {
       return df;
     }
 
-    public int[] docFreqs(Term[] terms) throws IOException {
+    public int[] docFreqs(Term[] terms) {
       int[] result = new int[terms.length];
       for (int i = 0; i < terms.length; i++) {
         result[i] = docFreq(terms[i]);
@@ -68,7 +68,7 @@ public class MultiSearcher extends Searcher {
       return maxDoc;
     }
 
-    public Query rewrite(Query query) throws IOException {
+    public Query rewrite(Query query) {
       // this is a bit of a hack. We know that a query which
       // creates a Weight based on this Dummy-Searcher is
       // always already rewritten (see preparedWeight()).
@@ -76,27 +76,27 @@ public class MultiSearcher extends Searcher {
       return query;
     }
 
-    public void close() throws IOException {
+    public void close() {
       throw new UnsupportedOperationException();
     }
 
-    public Document doc(int i) throws IOException{
+    public Document doc(int i) {
       throw new UnsupportedOperationException();
     }
 
-    public Explanation explain(Weight weight,int doc) throws IOException {
+    public Explanation explain(Weight weight,int doc) {
       throw new UnsupportedOperationException();
     }
 
-    public void search(Weight weight, Filter filter, HitCollector results) throws IOException {
+    public void search(Weight weight, Filter filter, HitCollector results) {
       throw new UnsupportedOperationException();
     }
 
-    public TopDocs search(Weight weight,Filter filter,int n) throws IOException {
+    public TopDocs search(Weight weight,Filter filter,int n) {
       throw new UnsupportedOperationException();
     }
 
-    public TopFieldDocs search(Weight weight,Filter filter,int n,Sort sort) throws IOException {
+    public TopFieldDocs search(Weight weight,Filter filter,int n,Sort sort) {
       throw new UnsupportedOperationException();
     }
   };

src/java/org/apache/lucene/search/PhrasePrefixQuery.java

@@ -131,7 +131,7 @@ public class PhrasePrefixQuery extends Query {
     public Query getQuery() { return PhrasePrefixQuery.this; }
     public float getValue() { return value; }
 
-    public float sumOfSquaredWeights() throws IOException {
+    public float sumOfSquaredWeights() {
       queryWeight = idf * getBoost();             // compute query weight
       return queryWeight * queryWeight;           // square it
     }

src/java/org/apache/lucene/search/PhraseQuery.java

@@ -119,7 +119,7 @@ public class PhraseQuery extends Query {
     public Query getQuery() { return PhraseQuery.this; }
     public float getValue() { return value; }
 
-    public float sumOfSquaredWeights() throws IOException {
+    public float sumOfSquaredWeights() {
       queryWeight = idf * getBoost();             // compute query weight
       return queryWeight * queryWeight;           // square it
     }

src/java/org/apache/lucene/search/TermQuery.java

@@ -31,7 +31,6 @@ public class TermQuery extends Query {
 
   private class TermWeight implements Weight {
     private Similarity similarity;
-    private Searcher searcher;
     private float value;
     private float idf;
     private float queryNorm;
@@ -48,7 +47,7 @@ public class TermQuery extends Query {
     public Query getQuery() { return TermQuery.this; }
     public float getValue() { return value; }
 
-    public float sumOfSquaredWeights() throws IOException {
+    public float sumOfSquaredWeights() {
       queryWeight = idf * getBoost();             // compute query weight
       return queryWeight * queryWeight;           // square it
     }