diff --git a/docs/manual/CoreTypes/redirector.html b/docs/manual/CoreTypes/redirector.html
index 45ccec4c9..20fd23a02 100644
--- a/docs/manual/CoreTypes/redirector.html
+++ b/docs/manual/CoreTypes/redirector.html
@@ -139,7 +139,7 @@ Tasks known to support I/O redirection:
 </ul>
 <p>The expected behavior of a &lt;redirector&gt; is to a great degree
 dependent on the supporting task.  Any possible points of confusion
-should be noted at the task level.
+should be noted at the task level.</p>
 <hr />
 <p align="center">Copyright &copy; 2004 The Apache Software Foundation. All rights
 Reserved.</p>
diff --git a/src/main/org/apache/tools/ant/taskdefs/ExecTask.java b/src/main/org/apache/tools/ant/taskdefs/ExecTask.java
index fd376b942..f3d2a9086 100644
--- a/src/main/org/apache/tools/ant/taskdefs/ExecTask.java
+++ b/src/main/org/apache/tools/ant/taskdefs/ExecTask.java
@@ -190,7 +190,7 @@ public class ExecTask extends Task {
      */
     public void setLogError(boolean logError) {
         redirector.setLogError(logError);
-        incompatibleWithSpawn = true;
+        incompatibleWithSpawn |= logError;
     }
 
     /**
@@ -236,7 +236,7 @@ public class ExecTask extends Task {
      */
     public void setFailonerror(boolean fail) {
         failOnError = fail;
-        incompatibleWithSpawn = true;
+        incompatibleWithSpawn |= fail;
     }
 
     /**
@@ -308,8 +308,8 @@ public class ExecTask extends Task {
      * @param result value desired for the result property value
      */
     protected void maybeSetResultPropertyValue(int result) {
-        String res = Integer.toString(result);
         if (resultProperty != null) {
+            String res = Integer.toString(result);
             getProject().setNewProperty(resultProperty, res);
         }
     }
diff --git a/src/main/org/apache/tools/ant/taskdefs/Java.java b/src/main/org/apache/tools/ant/taskdefs/Java.java
index 92b2ea257..6597a6652 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Java.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Java.java
@@ -332,6 +332,7 @@ public class Java extends Task {
      */
     public void setResultProperty(String resultProperty) {
         this.resultProperty = resultProperty;
+        incompatibleWithSpawn = true;
     }
 
     /**
@@ -474,7 +475,7 @@ public class Java extends Task {
      */
     public void setLogError(boolean logError) {
         redirector.setLogError(logError);
-        incompatibleWithSpawn = true;
+        incompatibleWithSpawn |= logError;
     }
 
     /**
diff --git a/src/main/org/apache/tools/ant/taskdefs/Redirector.java b/src/main/org/apache/tools/ant/taskdefs/Redirector.java
index ade98f77f..917a43fcf 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Redirector.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Redirector.java
@@ -78,7 +78,7 @@ public class Redirector {
 
     /**
      * The file(s) from which standard input is being taken.
-     * If > 1, files' content will be concatenated in the order received.
+     * If &gt; 1, files' content will be concatenated in the order received.
      */
     private File[] input;
 
@@ -137,7 +137,7 @@ public class Redirector {
     /** The stream for input */
     private InputStream inputStream = null;
 
-    /** Stream which are used for line oriented output */
+    /** Stream which is used for line oriented output */
     private PrintStream outPrintStream = null;
 
     /** Stream which is used for line oriented error output */
diff --git a/src/main/org/apache/tools/ant/types/RedirectorElement.java b/src/main/org/apache/tools/ant/types/RedirectorElement.java
index 267c71aa3..245b25ce9 100755
--- a/src/main/org/apache/tools/ant/types/RedirectorElement.java
+++ b/src/main/org/apache/tools/ant/types/RedirectorElement.java
@@ -47,10 +47,10 @@ public class RedirectorElement extends DataType {
     private boolean usingError = false;
 
     /**
-      * Indicates if standard error should be logged to Ant's log system
-      * rather than the output. This has no effect if standard error is
-      * redirected to a file or property.
-      */
+     * Indicates if standard error should be logged to Ant's log system
+     * rather than the output. This has no effect if standard error is
+     * redirected to a file or property.
+     */
     private Boolean logError;
 
     /** The name of the property into which output is to be stored */
@@ -165,6 +165,10 @@ public class RedirectorElement extends DataType {
             || inputString != null
             || logError != null
             || append != null
+            || createEmptyFiles != null
+            || inputEncoding != null
+            || outputEncoding != null
+            || errorEncoding != null
             || outputProperty != null
             || errorProperty != null) {
             throw tooManyAttributes();
diff --git a/src/main/org/apache/tools/ant/util/ReaderInputStream.java b/src/main/org/apache/tools/ant/util/ReaderInputStream.java
index 913a1a2c7..3c43267b6 100755
--- a/src/main/org/apache/tools/ant/util/ReaderInputStream.java
+++ b/src/main/org/apache/tools/ant/util/ReaderInputStream.java
@@ -130,7 +130,7 @@ public class ReaderInputStream extends InputStream {
 
         System.arraycopy(slack, begin, b, off, len);
 
-        if ((begin+= len) >= slack.length) {
+        if ((begin += len) >= slack.length) {
             slack = null;
         }