src/share/classes/sun/reflect/generics/tree/FloatSignature.java

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@@ -27,11 +27,11 @@
 
 import sun.reflect.generics.visitor.TypeTreeVisitor;
 
 /** AST that represents the type float. */
 public class FloatSignature implements BaseType {
-    private static FloatSignature singleton = new FloatSignature();
+    private static final FloatSignature singleton = new FloatSignature();
 
     private FloatSignature(){}
 
     public static FloatSignature make() {return singleton;}