[cp-patches] FYI: java.io: Use correct lock for chained writers

[Bryce McKinlay]

Chained Readers and Writers should synchronize on the existing lock used 
by their inferior. In some cases we were not doing this. I'm checking in 
this patch to fix it.

Regards

Bryce

2004-07-20  Bryce McKinlay  <address@hidden>

        * java/io/BufferedWriter.java (BufferedWriter): Use existing lock
        of chained Writer when calling super-constructor.
        * java/io/FilterWriter.java (FilterWriter): Likewise.
        * java/io/PrintWriter.java (PrintWriter): Likewise.

Index: BufferedWriter.java
===================================================================
RCS file: /cvs/gcc/gcc/libjava/java/io/BufferedWriter.java,v
retrieving revision 1.13
diff -u -r1.13 BufferedWriter.java
--- BufferedWriter.java 20 Apr 2004 18:15:44 -0000      1.13
+++ BufferedWriter.java 20 Jul 2004 15:37:08 -0000
@@ -103,7 +103,7 @@
    */
   public BufferedWriter (Writer out, int size)
   {
-    super(out);
+    super(out.lock);
     this.out = out;
     this.buffer = new char[size];
     this.count = 0;
Index: FilterWriter.java
===================================================================
RCS file: /cvs/gcc/gcc/libjava/java/io/FilterWriter.java,v
retrieving revision 1.8
diff -u -r1.8 FilterWriter.java
--- FilterWriter.java   23 Mar 2003 19:11:19 -0000      1.8
+++ FilterWriter.java   20 Jul 2004 15:37:08 -0000
@@ -72,7 +72,7 @@
     */
   protected FilterWriter(Writer out)
   {
-    super(out);
+    super(out.lock);
     this.out = out;
   }
 
Index: PrintWriter.java
===================================================================
RCS file: /cvs/gcc/gcc/libjava/java/io/PrintWriter.java,v
retrieving revision 1.11
diff -u -r1.11 PrintWriter.java
--- PrintWriter.java    20 May 2003 09:13:19 -0000      1.11
+++ PrintWriter.java    20 Jul 2004 15:37:09 -0000
@@ -86,7 +86,7 @@
    */
   public PrintWriter(Writer wr)
   {
-    super(wr);
+    super(wr.lock);
     this.out = wr;
   }
 
@@ -102,7 +102,7 @@
    */
   public PrintWriter(Writer wr, boolean autoflush)
   {
-    super(wr);
+    super(wr.lock);
     this.out = wr;
     this.autoflush = autoflush;
   }