### Eclipse Workspace Patch 1.0
#P ant-trunk
Index: org/apache/tools/ant/taskdefs/StreamPumper.java
===================================================================
--- org/apache/tools/ant/taskdefs/StreamPumper.java	(revision 1292497)
+++ org/apache/tools/ant/taskdefs/StreamPumper.java	(working copy)
@@ -129,11 +129,14 @@
                     break;
                 }
 
-                length = is.read(buf);
-                if (length <= 0 || finish || Thread.interrupted()) {
+                int availableBytes = is.available();
+                byte[] buf = new byte[availableBytes];
+                int actualBytesRead = is.read(buf, 0, availableBytes);
+
+                if (actualBytesRead <= 0 || finish || Thread.interrupted()) {
                     break;
                 }
-                os.write(buf, 0, length);
+                os.write(buf, 0, actualBytesRead);
                 if (autoflush) {
                     os.flush();
                 }