6881442: (reflect) Race condition in Class.getName()

Only read "name" field racily once Reviewed-by: darcy
2009-09-12 15:30:13 -07:00 · 2009-09-12 15:30:13 -07:00 · b5f1c84e3e
commit b5f1c84e3e
parent ee98fe5cd9
1 changed files with 2 additions and 1 deletions
--- a/jdk/src/share/classes/java/lang/Class.java
+++ b/jdk/src/share/classes/java/lang/Class.java
@ -565,8 +565,9 @@ public final
     *          represented by this object.
     */
    public String getName() {
+        String name = this.name;
        if (name == null)
-            name = getName0();
+            this.name = name = getName0();
        return name;
    }