diff --git a/solr/core/src/test/org/apache/solr/handler/TestContainerPlugin.java b/solr/core/src/test/org/apache/solr/handler/TestContainerPlugin.java
index 9bfe22e5b33..7e5bc9ba97c 100644
--- a/solr/core/src/test/org/apache/solr/handler/TestContainerPlugin.java
+++ b/solr/core/src/test/org/apache/solr/handler/TestContainerPlugin.java
@@ -20,7 +20,6 @@ package org.apache.solr.handler;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.ByteBuffer;
-import java.util.Collections;
 import java.util.Map;
 import java.util.concurrent.Callable;