/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jena.sparql.engine.join;

import java.util.Iterator ;

import org.apache.jena.sparql.algebra.Table ;
import org.apache.jena.sparql.engine.QueryIterator ;
import org.apache.jena.sparql.engine.binding.Binding ;
import org.apache.jena.sparql.engine.iterator.QueryIterPlainWrapper ;
import org.apache.jena.sparql.engine.join.Join ;
import org.apache.jena.sparql.engine.join.JoinKey ;
import org.apache.jena.sparql.expr.ExprList ;

public class TestHashJoin extends AbstractTestInnerJoin {

    @Override
    public QueryIterator join(JoinKey joinKey, Table left, Table right, ExprList conditions) {
        Iterator<Binding> data = Join.hashJoin(joinKey, left.iterator(null), right.iterator(null), null) ;
        QueryIterator qIter = new QueryIterPlainWrapper(data) ;
        return qIter ;
    }
}

@@ -850,37 +850,8 @@
 n;%0A%0A
-import java.util.Iterator ;%0A%0A
 impo
@@ -949,234 +949,8 @@
 r ;%0A
-import org.apache.jena.sparql.engine.binding.Binding ;%0Aimport org.apache.jena.sparql.engine.iterator.QueryIterPlainWrapper ;%0Aimport org.apache.jena.sparql.engine.join.Join ;%0Aimport org.apache.jena.sparql.engine.join.JoinKey ;%0A
 impo
@@ -1050,17 +1050,16 @@
 rJoin %7B%0A
-%0A
     @Ove
@@ -1171,32 +1171,14 @@
     
-Iterator%3CBinding%3E data =
+return
  Joi
@@ -1252,95 +1252,8 @@
 ) ;%0A
-        QueryIterator qIter = new QueryIterPlainWrapper(data) ;%0A        return qIter ;%0A
     

Remove redundant wrapper.