--- old/src/java.base/share/classes/java/io/PipedReader.java	2018-09-28 11:27:19.477908797 +0700
+++ new/src/java.base/share/classes/java/io/PipedReader.java	2018-09-28 11:27:18.125908797 +0700
@@ -53,7 +53,7 @@
     /**
      * The circular buffer into which incoming data is placed.
      */
-    char buffer[];
+    char[] buffer;
 
     /**
      * The index of the position in the circular buffer at which the
@@ -201,7 +201,7 @@
      * Receives data into an array of characters.  This method will
      * block until some input is available.
      */
-    synchronized void receive(char c[], int off, int len)  throws IOException {
+    synchronized void receive(char[] c, int off, int len)  throws IOException {
         while (--len >= 0) {
             receive(c[off++]);
         }
@@ -288,7 +288,7 @@
      *                  or an I/O error occurs.
      * @exception  IndexOutOfBoundsException {@inheritDoc}
      */
-    public synchronized int read(char cbuf[], int off, int len)  throws IOException {
+    public synchronized int read(char[] cbuf, int off, int len)  throws IOException {
         if (!connected) {
             throw new IOException("Pipe not connected");
         } else if (closedByReader) {