--- a/jdk/src/java.base/share/classes/jdk/internal/org/objectweb/asm/signature/SignatureWriter.java	Tue Mar 15 12:38:35 2016 +0800
+++ b/jdk/src/java.base/share/classes/jdk/internal/org/objectweb/asm/signature/SignatureWriter.java	Tue Mar 01 12:33:04 2016 -0800
@@ -69,9 +69,9 @@
 public class SignatureWriter extends SignatureVisitor {
 
     /**
-     * Buffer used to construct the signature.
+     * Builder used to construct the signature.
      */
-    private final StringBuffer buf = new StringBuffer();
+    private final StringBuilder buf = new StringBuilder();
 
     /**
      * Indicates if the signature contains formal type parameters.