diff --git a/src/main/java/org/codehaus/plexus/digest/AbstractDigester.java b/src/main/java/org/codehaus/plexus/digest/AbstractDigester.java
index a871fdb..2038133 100644
--- a/src/main/java/org/codehaus/plexus/digest/AbstractDigester.java
+++ b/src/main/java/org/codehaus/plexus/digest/AbstractDigester.java
@@ -33,16 +33,27 @@ public abstract class AbstractDigester
 {
     private final StreamingDigester streamingDigester;
 
+    /**
+     * <p>Constructor for AbstractDigester.</p>
+     *
+     * @param streamingDigester a {@link org.codehaus.plexus.digest.StreamingDigester} object.
+     */
     protected AbstractDigester( StreamingDigester streamingDigester )
     {
         this.streamingDigester = streamingDigester;
     }
 
+    /**
+     * <p>getAlgorithm.</p>
+     *
+     * @return a {@link java.lang.String} object.
+     */
     public String getAlgorithm()
     {
         return streamingDigester.getAlgorithm();
     }
 
+    /** {@inheritDoc} */
     public String calc( File file )
         throws DigesterException
     {
@@ -65,6 +76,7 @@ public String calc( File file )
         }
     }
 
+    /** {@inheritDoc} */
     public void verify( File file, String checksum )
         throws DigesterException
     {
@@ -79,6 +91,11 @@ public void verify( File file, String checksum )
         }
     }
 
+    /**
+     * <p>toString.</p>
+     *
+     * @return a {@link java.lang.String} object.
+     */
     public String toString()
     {
         return "[Digester:" + streamingDigester.getAlgorithm() + "]";
diff --git a/src/main/java/org/codehaus/plexus/digest/AbstractStreamingDigester.java b/src/main/java/org/codehaus/plexus/digest/AbstractStreamingDigester.java
index b07f16c..b493a4e 100644
--- a/src/main/java/org/codehaus/plexus/digest/AbstractStreamingDigester.java
+++ b/src/main/java/org/codehaus/plexus/digest/AbstractStreamingDigester.java
@@ -33,6 +33,11 @@ public abstract class AbstractStreamingDigester
 
     private static final int BUFFER_SIZE = 32768;
 
+    /**
+     * <p>Constructor for AbstractStreamingDigester.</p>
+     *
+     * @param algorithm a {@link java.lang.String} object.
+     */
     protected AbstractStreamingDigester( String algorithm )
     {
         try
@@ -46,34 +51,64 @@ protected AbstractStreamingDigester( String algorithm )
         }
     }
 
+    /**
+     * <p>getAlgorithm.</p>
+     *
+     * @return a {@link java.lang.String} object.
+     */
     public String getAlgorithm()
     {
         return md.getAlgorithm();
     }
 
+    /**
+     * <p>calc.</p>
+     *
+     * @return a {@link java.lang.String} object.
+     * @throws org.codehaus.plexus.digest.DigesterException if any.
+     */
     public String calc()
         throws DigesterException
     {
         return calc( this.md );
     }
 
+    /**
+     * <p>reset.</p>
+     *
+     * @throws org.codehaus.plexus.digest.DigesterException if any.
+     */
     public void reset()
         throws DigesterException
     {
         md.reset();
     }
 
+    /** {@inheritDoc} */
     public void update( InputStream is )
         throws DigesterException
     {
         update( is, md );
     }
 
+    /**
+     * <p>calc.</p>
+     *
+     * @param md a {@link java.security.MessageDigest} object.
+     * @return a {@link java.lang.String} object.
+     */
     protected static String calc( MessageDigest md )
     {
         return Hex.encode( md.digest() );
     }
 
+    /**
+     * <p>update.</p>
+     *
+     * @param is a {@link java.io.InputStream} object.
+     * @param digest a {@link java.security.MessageDigest} object.
+     * @throws org.codehaus.plexus.digest.DigesterException if any.
+     */
     protected static void update( InputStream is, MessageDigest digest )
         throws DigesterException
     {
diff --git a/src/main/java/org/codehaus/plexus/digest/ChecksumFile.java b/src/main/java/org/codehaus/plexus/digest/ChecksumFile.java
index 15588c1..e3cff00 100644
--- a/src/main/java/org/codehaus/plexus/digest/ChecksumFile.java
+++ b/src/main/java/org/codehaus/plexus/digest/ChecksumFile.java
@@ -24,11 +24,10 @@
 import java.io.IOException;
 
 /**
- * ChecksumFile 
+ * ChecksumFile
  *
  * @author <a href="mailto:joakim@erdfelt.com">Joakim Erdfelt</a>
  * @version $Id$
- * 
  * @plexus.component role="org.codehaus.plexus.digest.ChecksumFile"
  */
 public class ChecksumFile
@@ -47,27 +46,27 @@ public class ChecksumFile
      * <p>
      * Given a checksum file, check to see if the file it represents is valid according to the checksum.
      * </p>
-     * 
-     * <dl>
-     *   <lh>Terminology:</lh>
-     *   <dt>Checksum File</dt>
-     *   <dd>The file that contains the previously calculated checksum value for the reference file.
+     *
+     * <p>
+     *   <p>Terminology:</p>
+     *   <p>Checksum File</p>
+     *   <p>The file that contains the previously calculated checksum value for the reference file.
      *       This is a text file with the extension ".sha1" or ".md5", and contains a single entry
      *       consisting of an optional reference filename, and a checksum string.
-     *   </dd>
-     *   <dt>Reference File</dt>
-     *   <dd>The file that is being referenced in the checksum file.</dd>
-     * </dl>
-     * 
+     *   </p>
+     *   <p>Reference File</p>
+     *   <p>The file that is being referenced in the checksum file.</p>
+     * </p>
+     *
      * <p>
      * NOTE: Only supports single file checksums of type MD5 or SHA1.
      * </p>
-     * 
+     *
      * @param checksumFile the checksum file (must end in ".sha1" or ".md5")
      * @return true if the checksum is valid for the file it represents.
-     * @throws DigesterException if there is a digester problem during the check of the reference file. 
-     * @throws FileNotFoundException if the checksumFile itself or the file it refers to is not found.
-     * @throws IOException if the reading of the checksumFile or the file it refers to fails.
+     * @throws org.codehaus.plexus.digest.DigesterException if there is a digester problem during the check of the reference file.
+     * @throws java.io.FileNotFoundException if the checksumFile itself or the file it refers to is not found.
+     * @throws java.io.IOException if the reading of the checksumFile or the file it refers to fails.
      */
     public boolean isValidChecksum( File checksumFile ) throws DigesterException, FileNotFoundException, IOException
     {
@@ -111,12 +110,12 @@ else if ( path.endsWith( digestSha1.getFilenameExtension() ) )
 
     /**
      * Creates a checksum file of the provided referenceFile.
-     * 
+     *
      * @param referenceFile the file to checksum.
      * @param digester the digester to use.
      * @return the checksum File that was created.
-     * @throws DigesterException if there was a problem calculating the checksum of the referenceFile. 
-     * @throws IOException if there was a problem either reading the referenceFile, or writing the checksum file.
+     * @throws org.codehaus.plexus.digest.DigesterException if there was a problem calculating the checksum of the referenceFile.
+     * @throws java.io.IOException if there was a problem either reading the referenceFile, or writing the checksum file.
      */
     public File createChecksum( File referenceFile, Digester digester ) throws DigesterException, IOException
     {
diff --git a/src/main/java/org/codehaus/plexus/digest/DigestUtils.java b/src/main/java/org/codehaus/plexus/digest/DigestUtils.java
index a54a8c0..265146a 100644
--- a/src/main/java/org/codehaus/plexus/digest/DigestUtils.java
+++ b/src/main/java/org/codehaus/plexus/digest/DigestUtils.java
@@ -30,21 +30,31 @@ private DigestUtils()
     {
         // don't create this class
     }
-    
+
     /**
      * Take a raw checksum string and verify that it matches the expectedFilename and digester, then
      * return the trimmed checksum string.
-     * 
+     *
      * @param rawChecksum the raw checksum string that may include the filename.
      * @param digester the expected digester for this checksum string.
      * @return the trimmed checksum string (no filename portion)
-     * @throws DigesterException if there was a problem verifying the checksum string.
+     * @throws org.codehaus.plexus.digest.DigesterException if there was a problem verifying the checksum string.
+     * @param expectedFilename a {@link java.lang.String} object.
      */
     public static String cleanChecksum( String rawChecksum, Digester digester, String expectedFilename ) throws DigesterException
     {
         return cleanChecksum( rawChecksum, digester.getAlgorithm(), expectedFilename );
     }
 
+    /**
+     * <p>cleanChecksum.</p>
+     *
+     * @param checksum a {@link java.lang.String} object.
+     * @param algorithm a {@link java.lang.String} object.
+     * @param path a {@link java.lang.String} object.
+     * @return a {@link java.lang.String} object.
+     * @throws org.codehaus.plexus.digest.DigesterException if any.
+     */
     public static String cleanChecksum( String checksum, String algorithm, String path )
         throws DigesterException
     {
diff --git a/src/main/java/org/codehaus/plexus/digest/Digester.java b/src/main/java/org/codehaus/plexus/digest/Digester.java
index 9ea3669..819d47f 100644
--- a/src/main/java/org/codehaus/plexus/digest/Digester.java
+++ b/src/main/java/org/codehaus/plexus/digest/Digester.java
@@ -25,6 +25,7 @@
  */
 public interface Digester
 {
+    /** Constant <code>ROLE="Digester.class.getName()"</code> */
     String ROLE = Digester.class.getName();
 
     /**
@@ -33,10 +34,10 @@ public interface Digester
      * @return the algorithm
      */
     String getAlgorithm();
-    
+
     /**
      * The filename extension for this digester.
-     * 
+     *
      * @return the filename extension.
      */
     String getFilenameExtension();
@@ -46,7 +47,7 @@ public interface Digester
      *
      * @param file the file to calculate the checksum for
      * @return the current checksum.
-     * @throws DigesterException if there was a problem computing the hashcode.
+     * @throws org.codehaus.plexus.digest.DigesterException if there was a problem computing the hashcode.
      */
     String calc( File file )
         throws DigesterException;
@@ -56,7 +57,7 @@ String calc( File file )
      *
      * @param file     the file to compute the checksum for
      * @param checksum the checksum to compare to
-     * @throws DigesterException if there was a problem computing the hashcode.
+     * @throws org.codehaus.plexus.digest.DigesterException if there was a problem computing the hashcode.
      */
     void verify( File file, String checksum )
         throws DigesterException;
diff --git a/src/main/java/org/codehaus/plexus/digest/DigesterException.java b/src/main/java/org/codehaus/plexus/digest/DigesterException.java
index 2cfa531..3a4f8b4 100644
--- a/src/main/java/org/codehaus/plexus/digest/DigesterException.java
+++ b/src/main/java/org/codehaus/plexus/digest/DigesterException.java
@@ -17,26 +17,47 @@
  */
 
 /**
+ * <p>DigesterException class.</p>
+ *
  * @author Edwin Punzalan
  */
 public class DigesterException
     extends Exception
 {
+    /**
+     * <p>Constructor for DigesterException.</p>
+     */
     public DigesterException()
     {
         super();
     }
 
+    /**
+     * <p>Constructor for DigesterException.</p>
+     *
+     * @param message a {@link java.lang.String} object.
+     */
     public DigesterException( String message )
     {
         super( message );
     }
 
+    /**
+     * <p>Constructor for DigesterException.</p>
+     *
+     * @param message a {@link java.lang.String} object.
+     * @param cause a {@link java.lang.Throwable} object.
+     */
     public DigesterException( String message, Throwable cause )
     {
         super( message, cause );
     }
 
+    /**
+     * <p>Constructor for DigesterException.</p>
+     *
+     * @param cause a {@link java.lang.Throwable} object.
+     */
     public DigesterException( Throwable cause )
     {
         super( cause );
diff --git a/src/main/java/org/codehaus/plexus/digest/Hex.java b/src/main/java/org/codehaus/plexus/digest/Hex.java
index 923d007..3eaae00 100644
--- a/src/main/java/org/codehaus/plexus/digest/Hex.java
+++ b/src/main/java/org/codehaus/plexus/digest/Hex.java
@@ -17,14 +17,19 @@
  */
 
 /**
- * Hex - simple hex conversions. 
+ * Hex - simple hex conversions.
  *
- * @version $Id$
  */
 public class Hex
 {
     private static final byte[] DIGITS = "0123456789abcdef".getBytes();
 
+    /**
+     * <p>encode.</p>
+     *
+     * @param data an array of {@link byte} objects.
+     * @return a {@link java.lang.String} object.
+     */
     public static String encode( byte[] data )
     {
         int l = data.length;
@@ -40,6 +45,12 @@ public static String encode( byte[] data )
         return new String( raw );
     }
 
+    /**
+     * <p>encode.</p>
+     *
+     * @param raw a {@link java.lang.String} object.
+     * @return a {@link java.lang.String} object.
+     */
     public static String encode( String raw )
     {
         return encode( raw.getBytes() );
diff --git a/src/main/java/org/codehaus/plexus/digest/Md5Digester.java b/src/main/java/org/codehaus/plexus/digest/Md5Digester.java
index 053c65c..d3954dd 100644
--- a/src/main/java/org/codehaus/plexus/digest/Md5Digester.java
+++ b/src/main/java/org/codehaus/plexus/digest/Md5Digester.java
@@ -18,17 +18,25 @@
 
 /**
  * Digester that does MD5 Message Digesting Only.
- * 
+ *
  * @plexus.component role="org.codehaus.plexus.digest.Digester" role-hint="md5"
  */
 public class Md5Digester
     extends AbstractDigester
 {
+    /**
+     * <p>getFilenameExtension.</p>
+     *
+     * @return a {@link java.lang.String} object.
+     */
     public String getFilenameExtension()
     {
         return ".md5";
     }
-    
+
+    /**
+     * <p>Constructor for Md5Digester.</p>
+     */
     public Md5Digester()
     {
         super( new StreamingMd5Digester() );
diff --git a/src/main/java/org/codehaus/plexus/digest/Sha1Digester.java b/src/main/java/org/codehaus/plexus/digest/Sha1Digester.java
index c18646b..a0cfdfe 100644
--- a/src/main/java/org/codehaus/plexus/digest/Sha1Digester.java
+++ b/src/main/java/org/codehaus/plexus/digest/Sha1Digester.java
@@ -24,11 +24,19 @@
 public class Sha1Digester
     extends AbstractDigester
 {
+    /**
+     * <p>getFilenameExtension.</p>
+     *
+     * @return a {@link java.lang.String} object.
+     */
     public String getFilenameExtension()
     {
         return ".sha1";
     }
-    
+
+    /**
+     * <p>Constructor for Sha1Digester.</p>
+     */
     public Sha1Digester()
     {
         super( new StreamingSha1Digester() );
diff --git a/src/main/java/org/codehaus/plexus/digest/StreamingDigester.java b/src/main/java/org/codehaus/plexus/digest/StreamingDigester.java
index df9d5d7..acb0959 100644
--- a/src/main/java/org/codehaus/plexus/digest/StreamingDigester.java
+++ b/src/main/java/org/codehaus/plexus/digest/StreamingDigester.java
@@ -25,6 +25,7 @@
  */
 public interface StreamingDigester
 {
+    /** Constant <code>ROLE="StreamingDigester.class.getName()"</code> */
     String ROLE = StreamingDigester.class.getName();
 
     /**
@@ -38,7 +39,7 @@ public interface StreamingDigester
      * Reset the hashcode calculation algorithm.
      * Only useful when performing incremental hashcodes based on repeated use of {@link #update(InputStream)}
      *
-     * @throws DigesterException if there was a problem with the internal message digest
+     * @throws org.codehaus.plexus.digest.DigesterException if there was a problem with the internal message digest
      */
     void reset()
         throws DigesterException;
@@ -47,7 +48,7 @@ void reset()
      * Calculate the current checksum.
      *
      * @return the current checksum.
-     * @throws DigesterException if there was a problem computing the hashcode.
+     * @throws org.codehaus.plexus.digest.DigesterException if there was a problem computing the hashcode.
      */
     String calc()
         throws DigesterException;
@@ -56,7 +57,7 @@ String calc()
      * Update the checksum with the content of the input stream.
      *
      * @param is the input stream
-     * @throws DigesterException if there was a problem computing the hashcode.
+     * @throws org.codehaus.plexus.digest.DigesterException if there was a problem computing the hashcode.
      */
     void update( InputStream is )
         throws DigesterException;
diff --git a/src/main/java/org/codehaus/plexus/digest/StreamingMd5Digester.java b/src/main/java/org/codehaus/plexus/digest/StreamingMd5Digester.java
index e078d06..5ab3bf5 100644
--- a/src/main/java/org/codehaus/plexus/digest/StreamingMd5Digester.java
+++ b/src/main/java/org/codehaus/plexus/digest/StreamingMd5Digester.java
@@ -25,6 +25,9 @@
 public class StreamingMd5Digester
     extends AbstractStreamingDigester
 {
+    /**
+     * <p>Constructor for StreamingMd5Digester.</p>
+     */
     public StreamingMd5Digester()
     {
         super( "MD5" );
diff --git a/src/main/java/org/codehaus/plexus/digest/StreamingSha1Digester.java b/src/main/java/org/codehaus/plexus/digest/StreamingSha1Digester.java
index b212e7c..384b500 100644
--- a/src/main/java/org/codehaus/plexus/digest/StreamingSha1Digester.java
+++ b/src/main/java/org/codehaus/plexus/digest/StreamingSha1Digester.java
@@ -25,6 +25,9 @@
 public class StreamingSha1Digester
     extends AbstractStreamingDigester
 {
+    /**
+     * <p>Constructor for StreamingSha1Digester.</p>
+     */
     public StreamingSha1Digester()
     {
         super( "SHA-1" );