2 files changed, 2 insertions, 2 deletions
diff --git a/src/java/com/jogamp/common/util/IOUtil.java b/src/java/com/jogamp/common/util/IOUtil.java
index 523b6bc..5f26c53 100644
--- a/src/java/com/jogamp/common/util/IOUtil.java
+++ b/src/java/com/jogamp/common/util/IOUtil.java
@@ -542,7 +542,7 @@ public class IOUtil {
     }
     
     public static URL compose(String scheme, String auth, String path1, String path2, String query, String fragment) throws MalformedURLException {
-        StringBuffer sb = new StringBuffer();
+        StringBuilder sb = new StringBuilder();
         if(null!=scheme) {
             sb.append(scheme);
             sb.append(":");
diff --git a/src/java/com/jogamp/common/util/ReflectionUtil.java b/src/java/com/jogamp/common/util/ReflectionUtil.java
index f6b9efb..8b9476f 100644
--- a/src/java/com/jogamp/common/util/ReflectionUtil.java
+++ b/src/java/com/jogamp/common/util/ReflectionUtil.java
@@ -94,7 +94,7 @@ public final class ReflectionUtil {
     }
 
     static final String asString(Class<?>[] argTypes) {
-        StringBuffer args = new StringBuffer();
+        StringBuilder args = new StringBuilder();
         boolean coma = false;
         if(null != argTypes) {
             for (int i = 0; i < argTypes.length; i++) {