diff --git a/src/main/org/apache/tools/ant/AntClassLoader.java b/src/main/org/apache/tools/ant/AntClassLoader.java
index a42c29707..6622a850e 100644
--- a/src/main/org/apache/tools/ant/AntClassLoader.java
+++ b/src/main/org/apache/tools/ant/AntClassLoader.java
@@ -47,7 +47,7 @@ import org.apache.tools.ant.util.LoaderUtils;
  */
 public class AntClassLoader extends ClassLoader implements SubBuildListener {
 
-    private static final FileUtils fileUtils = FileUtils.newFileUtils();
+    private static final FileUtils FILE_UTILS = FileUtils.newFileUtils();
 
     /**
      * An enumeration of all resources of a given name found within the
@@ -909,7 +909,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
 
                 if (resource.exists()) {
                     try {
-                        return fileUtils.getFileURL(resource);
+                        return FILE_UTILS.getFileURL(resource);
                     } catch (MalformedURLException ex) {
                         return null;
                     }
@@ -924,7 +924,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
                 ZipEntry entry = zipFile.getEntry(resourceName);
                 if (entry != null) {
                     try {
-                        return new URL("jar:" + fileUtils.getFileURL(file)
+                        return new URL("jar:" + FILE_UTILS.getFileURL(file)
                                        + "!/" + entry);
                     } catch (MalformedURLException ex) {
                         return null;
diff --git a/src/main/org/apache/tools/ant/Executor.java b/src/main/org/apache/tools/ant/Executor.java
index 00e338aaa..fff002dc7 100755
--- a/src/main/org/apache/tools/ant/Executor.java
+++ b/src/main/org/apache/tools/ant/Executor.java
@@ -27,7 +27,7 @@ public interface Executor {
      * Execute the specified Targets for the specified Project.
      * @param project       the Ant Project.
      * @param targetNames   String[] of Target names.
-     * @throws BuildException.
+     * @throws BuildException on error
      */
     void executeTargets(Project project, String[] targetNames)
         throws BuildException;
diff --git a/src/main/org/apache/tools/ant/taskdefs/Exit.java b/src/main/org/apache/tools/ant/taskdefs/Exit.java
index 13ab110a6..2279cc10c 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Exit.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Exit.java
@@ -106,7 +106,7 @@ public class Exit extends Task {
      * The error message is constructed from the text fields, from
      * the nested condition (if specified), or finally from
      * the if and unless parameters (if present).
-     * @throws BuildException
+     * @throws BuildException on error
      */
     public void execute() throws BuildException {
         boolean fail = (nestedConditionPresent()) ? testNestedCondition()
diff --git a/src/main/org/apache/tools/ant/taskdefs/Input.java b/src/main/org/apache/tools/ant/taskdefs/Input.java
index 72790f1dc..e0e6c6c22 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Input.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Input.java
@@ -95,7 +95,7 @@ public class Input extends Task {
 
     /**
      * Actual method executed by ant.
-     * @throws BuildException
+     * @throws BuildException on error
      */
     public void execute () throws BuildException {
         if (addproperty != null
diff --git a/src/main/org/apache/tools/ant/taskdefs/Sleep.java b/src/main/org/apache/tools/ant/taskdefs/Sleep.java
index 25711ff1a..91d86575a 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Sleep.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Sleep.java
@@ -121,6 +121,7 @@ public class Sleep extends Task {
         try {
             Thread.sleep(millis);
         } catch (InterruptedException ie) {
+            // Ignore Exception
         }
     }