SOLR-1181: Inner classes that don't access the ref to the object that created them should be static

git-svn-id: https://svn.apache.org/repos/asf/lucene/solr/trunk@777581 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/solr/handler/SnapPuller.java

@@ -740,7 +740,7 @@ public class SnapPuller {
     return nextTime;
   }
 
-  private class ReplicationHandlerException extends InterruptedException {
+  private static class ReplicationHandlerException extends InterruptedException {
     public ReplicationHandlerException(String message) {
       super(message);
     }

src/java/org/apache/solr/handler/component/TermVectorComponent.java

@@ -182,7 +182,7 @@ public class TermVectorComponent extends SearchComponent implements SolrCoreAwar
     return result;
   }
 
-  private class TVMapper extends TermVectorMapper {
+  private static class TVMapper extends TermVectorMapper {
     private NamedList docNL;
     private IndexReader reader;
     private Set<String> fields;

src/java/org/apache/solr/search/SolrIndexSearcher.java

@@ -376,7 +376,7 @@ public class SolrIndexSearcher extends IndexSearcher implements SolrInfoMBean {
    * FieldSelector which loads the specified fields, and load all other
    * field lazily.
    */
-  class SetNonLazyFieldSelector implements FieldSelector {
+  static class SetNonLazyFieldSelector implements FieldSelector {
     private Set<String> fieldsToLoad;
     SetNonLazyFieldSelector(Set<String> toLoad) {
       fieldsToLoad = toLoad;

src/java/org/apache/solr/update/UpdateHandler.java

@@ -160,7 +160,7 @@ public abstract class UpdateHandler implements SolrInfoMBean {
   public abstract void close() throws IOException;
 
 
-  class DeleteHitCollector extends HitCollector {
+  static class DeleteHitCollector extends HitCollector {
     public int deleted=0;
     public final SolrIndexSearcher searcher;