Setting the length of the new array to optimize speed

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1088439 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/lang3/exception/ExceptionUtils.java

@@ -551,7 +551,7 @@ public class ExceptionUtils {
                 frames.add(trace.get(j));
             }
         }
-        return frames.toArray(new String[0]);
+        return frames.toArray(new String[frames.size()]);
     }
 
     /**

src/main/java/org/apache/commons/lang3/reflect/TypeUtils.java

@@ -886,7 +886,7 @@ public class TypeUtils {
             }
         }
 
-        return types.toArray(new Type[0]);
+        return types.toArray(new Type[types.size()]);
     }
 
     /**