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-rw-r--r--chapter05/src/main/java/com/seaofnodes/simple/node/ConstantNode.java2
1 files changed, 1 insertions, 1 deletions
diff --git a/chapter05/src/main/java/com/seaofnodes/simple/node/ConstantNode.java b/chapter05/src/main/java/com/seaofnodes/simple/node/ConstantNode.java
index 1086037d..23bc4d1a 100644
--- a/chapter05/src/main/java/com/seaofnodes/simple/node/ConstantNode.java
+++ b/chapter05/src/main/java/com/seaofnodes/simple/node/ConstantNode.java
@@ -16,7 +16,7 @@ import com.seaofnodes.simple.type.Type;
* The Constant's value is the value stored in it.
*/
public class ConstantNode extends Node {
- Type _con;
+ final Type _con;
public ConstantNode( Type type ) {
super(Parser.START);
_con = type;