1 files changed, 6 insertions, 5 deletions
diff --git a/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/codec/SymbolTypeConstructor.java b/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/codec/SymbolTypeConstructor.java
index b96e1ab47b..b75bba8c6a 100644
--- a/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/codec/SymbolTypeConstructor.java
+++ b/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/codec/SymbolTypeConstructor.java
@@ -20,19 +20,20 @@
  */
 package org.apache.qpid.amqp_1_0.codec;
 
-import org.apache.qpid.amqp_1_0.type.AmqpErrorException;
-import org.apache.qpid.amqp_1_0.type.Symbol;
-
 import java.nio.ByteBuffer;
 import java.nio.CharBuffer;
 import java.nio.charset.Charset;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+import org.apache.qpid.amqp_1_0.type.AmqpErrorException;
+import org.apache.qpid.amqp_1_0.type.Symbol;
 
 public class SymbolTypeConstructor extends VariableWidthTypeConstructor
 {
     private static final Charset ASCII = Charset.forName("US-ASCII");
 
-    private static final ConcurrentHashMap<BinaryString, Symbol> SYMBOL_MAP =
+    private static final ConcurrentMap<BinaryString, Symbol> SYMBOL_MAP =
             new ConcurrentHashMap<BinaryString, Symbol>(2048);
 
     public static SymbolTypeConstructor getInstance(int i)
@@ -89,4 +90,4 @@ public class SymbolTypeConstructor extends VariableWidthTypeConstructor
 
     }
 
-}
-\ No newline at end of file
+}