Index: src/main/java/org/codehaus/mojo/retrotranslator/RetrotranslateMojo.java
===================================================================
--- src/main/java/org/codehaus/mojo/retrotranslator/RetrotranslateMojo.java	(revision 2121)
+++ src/main/java/org/codehaus/mojo/retrotranslator/RetrotranslateMojo.java	(working copy)
@@ -50,49 +50,64 @@
     private List classpathElements;
     
     /**
-     * Extra classpath elements for verifying result classes.  When maven runs 
-     * from jdk1.5, the path to 'rt.jar' of a pre-jdk1.5 should be here.
+     * The classpath to use for verification including rt.jar, jce.jar, jsse.jar 
+     * (from JRE 1.4).  The retrotranslator-runtime-n.n.n.jar, and backport-util-concurrent.jar
+     * are included by default, they are not required to be defined here.
      * 
-     * @parameter
+     * @parameter expression=${maven.retrotrans.verifyClasspath}
      */
     private List verifyClasspath;
     
     /**
-     * @parameter
+     * Directory to place classes compatible with J2SE 1.4.
+     * 
+     * @parameter expression=${maven.retrotrans.destdir}
      */
     private File destdir;
 
     /**
-     * @parameter
+     * JAR file to place classes compatible with J2SE 1.4.
+     * 
+     * @parameter expression=${maven.retrotrans.destjar}
      */
     private File destjar;
 
     /**
-     * @parameter expression="false"
+     * Asks the translator to strip signature (generics) information.
+     * 
+     * @parameter default-value="false" expression=${maven.retrotrans.stripsign}
      * @required
      */
     private boolean stripsign;
 
     /**
-     * @parameter expression="false"
+     * Asks the translator for verbose output.
+     * 
+     * @parameter default-value="false" expression=${maven.retrotrans.verbose}
      * @required
      */
     private boolean verbose;
 
     /**
-     * @parameter expression="false"
+     * Asks the translator for warnings when references to unknown classes, methods, or fields are found.
+     * 
+     * @parameter default-value="false" expression=${maven.retrotrans.verify}
      * @required
      */
     private boolean verify;
 
     /**
-     * @parameter expression="false"
+     * Asks the translator to transform only Java 5.0 classes.
+     * 
+     * @parameter default-value="false" expression=${maven.retrotrans.lazy}
      * @required
      */
     private boolean lazy;
 
     /**
-     * @parameter expression="true"
+     * Fails build when verification has failed.
+     * 
+     * @parameter default-value="true" expression=${maven.retrotrans.failonwarning}
      * @required
      */
     private boolean failonwarning;