diff --git a/gclc.system/src/main/java/net/bigeon/gclc/system/ForwardingRunnable.java b/gclc.system/src/main/java/net/bigeon/gclc/system/ForwardingRunnable.java
index 595047d..96fdcdb 100644
--- a/gclc.system/src/main/java/net/bigeon/gclc/system/ForwardingRunnable.java
+++ b/gclc.system/src/main/java/net/bigeon/gclc/system/ForwardingRunnable.java
@@ -94,8 +94,7 @@ public final class ForwardingRunnable implements Runnable {
      * 
      * @throws CommandRunException if the manager was closed while writing the
      *         stream */
-    private void readToEnd()
-            throws CommandRunException {
+    private void readToEnd() throws CommandRunException {
         int c;
         try {
             while ((c = is.read()) >= 0) {
@@ -145,12 +144,20 @@ public final class ForwardingRunnable implements Runnable {
         return connect(stream, output, "Forwarding");
     }
 
-    /** @return the error */
+    /** Get the error in this runnable execution if any.
+     * <p>
+     * In the current implementation, this error can be an {@link IOException} if
+     * the input stream failed or a {@link CommandRunException} if the output was
+     * closed.
+     * 
+     * @return the error */
     public synchronized Exception getError() {
         return error;
     }
 
-    /** @param error the error to set */
+    /** Set the error that caused this runnable to stop executing.
+     * 
+     * @param error the error to set */
     private synchronized void setError(final Exception error) {
         this.error = error;
     }