From 0048bf7983e68d6d99b7b1332db8a2239de50949 Mon Sep 17 00:00:00 2001
From: Narayan Kamath <narayan@google.com>
Date: Tue, 19 Nov 2013 15:03:38 +0000
Subject: Make PipedWriter#flush throw if the reader is closed.

bug: 11666814
Change-Id: I25dc56f5e50e0cfb14e5781e953115864be612a9
---
 .../org/apache/harmony/tests/java/io/PipedWriterTest.java | 15 ++++++---------
 luni/src/main/java/java/io/PipedReader.java               |  2 +-
 luni/src/main/java/java/io/PipedWriter.java               |  5 +++--
 3 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/harmony-tests/src/test/java/org/apache/harmony/tests/java/io/PipedWriterTest.java b/harmony-tests/src/test/java/org/apache/harmony/tests/java/io/PipedWriterTest.java
index 99827a1..07c77b9 100644
--- a/harmony-tests/src/test/java/org/apache/harmony/tests/java/io/PipedWriterTest.java
+++ b/harmony-tests/src/test/java/org/apache/harmony/tests/java/io/PipedWriterTest.java
@@ -32,8 +32,7 @@ public class PipedWriterTest extends junit.framework.TestCase {
             try {
                 pr = new PipedReader(pw);
             } catch (IOException e) {
-                System.out.println("Exception setting up reader: "
-                        + e.toString());
+                fail();
             }
         }
 
@@ -51,9 +50,7 @@ public class PipedWriterTest extends junit.framework.TestCase {
                     buf[i] = (char) r;
                 }
             } catch (Exception e) {
-                System.out.println("Exception reading ("
-                        + Thread.currentThread().getName() + "): "
-                        + e.toString());
+                fail();
             }
         }
     }
@@ -85,7 +82,7 @@ public class PipedWriterTest extends junit.framework.TestCase {
         rdrThread.start();
         pw.write(buf);
         pw.close();
-        rdrThread.join(500);
+        rdrThread.join();
         assertEquals("Failed to construct writer", "HelloWorld", new String(
                 reader.buf));
     }
@@ -123,7 +120,7 @@ public class PipedWriterTest extends junit.framework.TestCase {
         rdrThread.start();
         pw.write(buf);
         pw.close();
-        rdrThread.join(500);
+        rdrThread.join();
         assertEquals("Failed to write correct chars", "HelloWorld", new String(
                 reader.buf));
     }
@@ -140,7 +137,7 @@ public class PipedWriterTest extends junit.framework.TestCase {
         rdrThread.start();
         pw.write(buf);
         pw.flush();
-        rdrThread.join(700);
+        rdrThread.join();
         assertEquals("Failed to flush chars", "HelloWorld", new String(
                 reader.buf));
     }
@@ -185,7 +182,7 @@ public class PipedWriterTest extends junit.framework.TestCase {
         rdrThread.start();
         pw.write(buf, 0, 10);
         pw.close();
-        rdrThread.join(1000);
+        rdrThread.join();
         assertEquals("Failed to write correct chars", "HelloWorld", new String(
                 reader.buf));
     }
diff --git a/luni/src/main/java/java/io/PipedReader.java b/luni/src/main/java/java/io/PipedReader.java
index 908505d..7bf9ed4 100644
--- a/luni/src/main/java/java/io/PipedReader.java
+++ b/luni/src/main/java/java/io/PipedReader.java
@@ -33,7 +33,7 @@ public class PipedReader extends Reader {
 
     private Thread lastWriter;
 
-    private boolean isClosed;
+    boolean isClosed;
 
     /**
      * The circular buffer through which data is passed. Data is read from the
diff --git a/luni/src/main/java/java/io/PipedWriter.java b/luni/src/main/java/java/io/PipedWriter.java
index ad8974b..e85f69c 100644
--- a/luni/src/main/java/java/io/PipedWriter.java
+++ b/luni/src/main/java/java/io/PipedWriter.java
@@ -17,8 +17,6 @@
 
 package java.io;
 
-import java.util.Arrays;
-
 /**
  * Places information on a communications pipe. When two threads want to pass
  * data back and forth, one creates a piped writer and the other creates a piped
@@ -115,6 +113,9 @@ public class PipedWriter extends Writer {
         }
 
         synchronized (reader) {
+            if (reader.isClosed) {
+                throw new IOException("Pipe is broken");
+            }
             reader.notifyAll();
         }
     }
-- 
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