remove "throws IOException" from methods that really never throw this exception

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@150397 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -77,7 +77,7 @@ final class BooleanScorer extends Scorer {
 			    bucketTable.newCollector(mask), scorers);
   }
 
-  private final void computeCoordFactors() throws IOException {
+  private final void computeCoordFactors() {
     coordFactors = new float[maxCoord];
     for (int i = 0; i < maxCoord; i++)
       coordFactors[i] = getSimilarity().coord(i, maxCoord-1);
@@ -120,7 +120,7 @@ final class BooleanScorer extends Scorer {
     return false;
   }
 
-  public float score() throws IOException {
+  public float score() {
     if (coordFactors == null)
       computeCoordFactors();
     return current.score * coordFactors[current.coord];
@@ -185,11 +185,11 @@ final class BooleanScorer extends Scorer {
     }
   }
 
-  public boolean skipTo(int target) throws IOException {
+  public boolean skipTo(int target) {
     throw new UnsupportedOperationException();
   }
 
-  public Explanation explain(int doc) throws IOException {
+  public Explanation explain(int doc) {
     throw new UnsupportedOperationException();
   }
 

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

@@ -30,7 +30,7 @@ final class ConjunctionScorer extends Scorer {
     super(similarity);
   }
 
-  final void add(Scorer scorer) throws IOException {
+  final void add(Scorer scorer) {
     scorers.addLast(scorer);
   }
 
@@ -92,7 +92,7 @@ final class ConjunctionScorer extends Scorer {
     firstTime = false;
   }
 
-  private void sortScorers() throws IOException {
+  private void sortScorers() {
     // move scorers to an array
     Scorer[] array = (Scorer[])scorers.toArray(new Scorer[scorers.size()]);
     scorers.clear();                              // empty the list
@@ -112,7 +112,7 @@ final class ConjunctionScorer extends Scorer {
     }
   }
 
-  public Explanation explain(int doc) throws IOException {
+  public Explanation explain(int doc) {
     throw new UnsupportedOperationException();
   }
 

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

@@ -18,7 +18,6 @@ package org.apache.lucene.search;
 
 import org.apache.lucene.util.PriorityQueue;
 
-import java.io.IOException;
 import java.text.Collator;
 import java.util.Locale;
 
@@ -48,10 +47,8 @@ extends PriorityQueue {
 	 * Creates a hit queue sorted by the given list of fields.
 	 * @param fields Field names, in priority order (highest priority first).
 	 * @param size  The number of hits to retain.  Must be greater than zero.
-	 * @throws IOException
 	 */
-	FieldDocSortedHitQueue (SortField[] fields, int size)
-	throws IOException {
+	FieldDocSortedHitQueue (SortField[] fields, int size) {
 		this.fields = fields;
 		this.collators = hasCollators (fields);
 		initialize (size);

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

@@ -28,7 +28,7 @@ public abstract class FilteredTermEnum extends TermEnum {
     private Term currentTerm = null;
     private TermEnum actualEnum = null;
     
-    public FilteredTermEnum() throws IOException {}
+    public FilteredTermEnum() {}
 
     /** Equality compare on the term */
     protected abstract boolean termCompare(Term term);

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

@@ -27,7 +27,7 @@ final class PhrasePositions {
   TermPositions tp;				  // stream of positions
   PhrasePositions next;				  // used to make lists
 
-  PhrasePositions(TermPositions t, int o) throws IOException {
+  PhrasePositions(TermPositions t, int o) {
     tp = t;
     offset = o;
   }

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

@@ -33,7 +33,7 @@ abstract class PhraseScorer extends Scorer {
   private float freq;
 
   PhraseScorer(Weight weight, TermPositions[] tps, Similarity similarity,
-               byte[] norms) throws IOException {
+               byte[] norms) {
     super(similarity);
     this.norms = norms;
     this.weight = weight;

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

@@ -24,7 +24,7 @@ final class SloppyPhraseScorer extends PhraseScorer {
     private int slop;
 
     SloppyPhraseScorer(Weight weight, TermPositions[] tps, Similarity similarity,
-                       int slop, byte[] norms) throws IOException {
+                       int slop, byte[] norms) {
         super(weight, tps, similarity, norms);
         this.slop = slop;
     }

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

@@ -36,7 +36,7 @@ final class TermScorer extends Scorer {
   private float[] scoreCache = new float[SCORE_CACHE_SIZE];
 
   TermScorer(Weight weight, TermDocs td, Similarity similarity,
-             byte[] norms) throws IOException {
+             byte[] norms) {
     super(similarity);
     this.weight = weight;
     this.termDocs = td;
@@ -65,7 +65,7 @@ final class TermScorer extends Scorer {
     return true;
   }
 
-  public float score() throws IOException {
+  public float score() {
     int f = freqs[pointer];
     float raw =                                   // compute tf(f)*weight
       f < SCORE_CACHE_SIZE			  // check cache