fix javadoc warnings
diff --git a/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractAccessGetServlet.java b/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractAccessGetServlet.java
index dc2bcda..e7aee4e 100644
--- a/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractAccessGetServlet.java
+++ b/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractAccessGetServlet.java
@@ -147,8 +147,6 @@
      * 
      * @param jcrSession the JCR session
      * @param resourcePath the resource path
-     * @param principalId the principal id
-     * @return the principal for the requested principalId
      */
     protected @NotNull void validateArgs(Session jcrSession, String resourcePath) throws RepositoryException {
         if (jcrSession == null) {
diff --git a/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractGetAceServlet.java b/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractGetAceServlet.java
index 906c3aa..0816cd8 100644
--- a/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractGetAceServlet.java
+++ b/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractGetAceServlet.java
@@ -90,7 +90,7 @@
     /**
      * Override to add additional data to the principal object
      * 
-     * @param principalObj the current principal object
+     * @param principalJson the current principal JSON builder
      * @param principal the current principal
      * @param principalToDeclaredAtPaths a map of principal the paths where ACEs are declared
      */
diff --git a/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractGetAclServlet.java b/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractGetAclServlet.java
index 684f734..be4902e 100644
--- a/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractGetAclServlet.java
+++ b/src/main/java/org/apache/sling/jcr/jackrabbit/accessmanager/post/AbstractGetAclServlet.java
@@ -136,7 +136,7 @@
     /**
      * Override to add additional data to the principal object
      * 
-     * @param principalObj the current principal object
+     * @param principalJson the current principal JSON builder
      * @param principal the current principal
      * @param principalToDeclaredAtPaths a map of principal the paths where ACEs are declared
      */