3 files changed, 9 insertions, 3 deletions
diff --git a/javax/sound/sampled/AudioFormat.java b/javax/sound/sampled/AudioFormat.java
index 7b6ebc4b0..1f31c9929 100644
--- a/javax/sound/sampled/AudioFormat.java
+++ b/javax/sound/sampled/AudioFormat.java
@@ -38,6 +38,8 @@ exception statement from your version. */
 
 package javax.sound.sampled;
 
+import gnu.java.lang.CPStringBuilder;
+
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
@@ -329,7 +331,7 @@ public class AudioFormat
    */
   public String toString()
   {
-    StringBuffer result = new StringBuffer();
+    CPStringBuilder result = new CPStringBuilder();
     
     // usually at least encoding should be somewhat specified
     result.append(encoding);
diff --git a/javax/sound/sampled/CompoundControl.java b/javax/sound/sampled/CompoundControl.java
index 057bdfd72..556c805ad 100644
--- a/javax/sound/sampled/CompoundControl.java
+++ b/javax/sound/sampled/CompoundControl.java
@@ -38,6 +38,8 @@ exception statement from your version. */
 
 package javax.sound.sampled;
 
+import gnu.java.lang.CPStringBuilder;
+
 /**
  * A compound control provides control over several other controls.
  * @since 1.3
@@ -88,7 +90,7 @@ public abstract class CompoundControl extends Control
    */
   public String toString()
   {
-    StringBuffer result = new StringBuffer();
+    CPStringBuilder result = new CPStringBuilder();
     result.append(super.toString());
     result.append(": ");
     for (int i = 0; i < memberControls.length; ++i)
diff --git a/javax/sound/sampled/DataLine.java b/javax/sound/sampled/DataLine.java
index b7cb70e49..4482c9885 100644
--- a/javax/sound/sampled/DataLine.java
+++ b/javax/sound/sampled/DataLine.java
@@ -37,6 +37,8 @@ exception statement from your version. */
 
 package javax.sound.sampled;
 
+import gnu.java.lang.CPStringBuilder;
+
 /**
  * The DataLine interface adds data-related functionality to the Line
  * interface.  For example, it adds methods to start and stop the data
@@ -180,7 +182,7 @@ public interface DataLine extends Line
      */
     public String toString()
     {
-      StringBuffer result = new StringBuffer();
+      CPStringBuilder result = new CPStringBuilder();
       result.append("formats: [");
       for (int i = 0; i < formats.length; ++i)
         {