Index: C:/harmony/trunk_0427/modules/luni/src/main/java/java/io/ByteArrayOutputStream.java =================================================================== --- C:/harmony/trunk_0427/modules/luni/src/main/java/java/io/ByteArrayOutputStream.java (revision 420699) +++ C:/harmony/trunk_0427/modules/luni/src/main/java/java/io/ByteArrayOutputStream.java (working copy) @@ -239,6 +239,9 @@ * If an error occurs when writing to output stream */ public void writeTo(OutputStream out) throws IOException { + if (count == 0) { + return; + } out.write(buf, 0, count); }