diff --git a/src/checkstyle/com/puppycrawl/tools/checkstyle/checks/AbstractFormatCheck.java b/src/checkstyle/com/puppycrawl/tools/checkstyle/checks/AbstractFormatCheck.java
index 112e44dae..f58292f67 100644
--- a/src/checkstyle/com/puppycrawl/tools/checkstyle/checks/AbstractFormatCheck.java
+++ b/src/checkstyle/com/puppycrawl/tools/checkstyle/checks/AbstractFormatCheck.java
@@ -25,8 +25,9 @@ import org.apache.regexp.RE;
 import org.apache.commons.beanutils.ConversionException;
 
 /**
- * Abstract class for checks that verify a name matches a specified regular
- * expression. Provides support for setting the format of the name.
+ * Abstract class for checks that verify strings using a regular
+ * expression. It provides support for setting the regular expression using
+ * the property name <code>format</code>.
  *
  * @author <a href="mailto:checkstyle@puppycrawl.com">Oliver Burn</a>
  * @version 1.0
@@ -50,7 +51,7 @@ public abstract class AbstractFormatCheck
     }
 
     /**
-     * Set the format.
+     * Set the format to the specified regular expression.
      * @param aFormat a <code>String</code> value
      * @throws ConversionException unable to parse aFormat
      */
diff --git a/src/checkstyle/com/puppycrawl/tools/checkstyle/checks/AbstractImportCheck.java b/src/checkstyle/com/puppycrawl/tools/checkstyle/checks/AbstractImportCheck.java
index 13a374db8..6fc35f2e2 100644
--- a/src/checkstyle/com/puppycrawl/tools/checkstyle/checks/AbstractImportCheck.java
+++ b/src/checkstyle/com/puppycrawl/tools/checkstyle/checks/AbstractImportCheck.java
@@ -16,7 +16,6 @@
 // License along with this library; if not, write to the Free Software
 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 ////////////////////////////////////////////////////////////////////////////////
-
 package com.puppycrawl.tools.checkstyle.checks;
 
 import com.puppycrawl.tools.checkstyle.api.Check;
@@ -24,8 +23,10 @@ import com.puppycrawl.tools.checkstyle.api.DetailAST;
 import com.puppycrawl.tools.checkstyle.api.FullIdent;
 
 /**
- * Abstract base class that provides functionality that is used in import
- * checks.
+ * Abstract class that provides helper functionality for determining an import
+ * name. It caches the import name in the token context to improve
+ * performance.
+ *
  * @author <a href="mailto:checkstyle@puppycrawl.com">Oliver Burn</a>
  * @version 1.0
  */