diff --git a/Core/src/org/sleuthkit/autopsy/directorytree/ExternalViewerAction.java b/Core/src/org/sleuthkit/autopsy/directorytree/ExternalViewerAction.java
index 60ef8f0750..96c24d7532 100644
--- a/Core/src/org/sleuthkit/autopsy/directorytree/ExternalViewerAction.java
+++ b/Core/src/org/sleuthkit/autopsy/directorytree/ExternalViewerAction.java
@@ -42,10 +42,15 @@ import org.sleuthkit.autopsy.datamodel.SlackFileNode;
 public class ExternalViewerAction extends AbstractAction {
 
     private final static Logger logger = Logger.getLogger(ExternalViewerAction.class.getName());
-    private org.sleuthkit.datamodel.AbstractFile fileObject;
+    private final org.sleuthkit.datamodel.AbstractFile fileObject;
     private String fileObjectExt;
     final static String[] EXECUTABLE_EXT = {".exe", ".dll", ".com", ".bat", ".msi", ".reg", ".scr", ".cmd"}; //NON-NLS
 
+    /**
+     * 
+     * @param title Name of the action
+     * @param fileNode File to display
+     */
     public ExternalViewerAction(String title, Node fileNode) {
         super(title);
         this.fileObject = fileNode.getLookup().lookup(org.sleuthkit.datamodel.AbstractFile.class);
@@ -127,9 +132,9 @@ public class ExternalViewerAction extends AbstractAction {
         }
         if (!exePath.equals("")) {
             Runtime runtime = Runtime.getRuntime();
-            String[] s = new String[]{exePath, file.getAbsolutePath()};
+            String[] execArray = new String[]{exePath, file.getAbsolutePath()};
             try {
-                runtime.exec(s);
+                runtime.exec(execArray);
             } catch (IOException ex) {
                 logger.log(Level.WARNING, "Could not open the specified viewer for the given file: " + file.getName(), ex); //NON-NLS
                 JOptionPane.showMessageDialog(null, Bundle.ExternalViewerAction_actionPerformed_failure_IO_message(), Bundle.ExternalViewerAction_actionPerformed_failure_title(), JOptionPane.ERROR_MESSAGE);
@@ -165,6 +170,11 @@ public class ExternalViewerAction extends AbstractAction {
         }
     }
 
+    /**
+     * Opens a URL using the default desktop browser
+     * 
+     * @param path URL to open 
+     */
     public static void openURL(String path) {
         String url_path = path.replaceAll("\\\\","/");   
         try {
diff --git a/ruleset.xml b/ruleset.xml
index b97681d624..e48144160e 100644
--- a/ruleset.xml
+++ b/ruleset.xml
@@ -106,7 +106,8 @@
   <rule ref="rulesets/java/design.xml/DefaultLabelNotLastInSwitchStmt"/>
   <rule ref="rulesets/java/design.xml/OptimizableToArrayCall"/>
   <rule ref="rulesets/java/design.xml/BadComparison"/>
-  <rule ref="rulesets/java/design.xml/ConfusingTernary"/>
+  <!-- Disabled.  Could enforce in future, but not top priority right now.
+  <rule ref="rulesets/java/design.xml/ConfusingTernary"/>-->
   <rule ref="rulesets/java/design.xml/InstantiationToGetClass"/>
   <rule ref="rulesets/java/design.xml/IdempotentOperations"/>
   <rule ref="rulesets/java/design.xml/SimpleDateFormatNeedsLocale"/>
@@ -118,7 +119,8 @@
   <rule ref="rulesets/java/design.xml/UseNotifyAllInsteadOfNotify"/>
   <rule ref="rulesets/java/design.xml/AbstractClassWithoutAbstractMethod"/>
   <rule ref="rulesets/java/design.xml/SimplifyConditional"/>
-  <rule ref="rulesets/java/design.xml/PositionLiteralsFirstInCaseInsensitiveComparisons"/>
+  <!-- Disabled.  Could enforce in future, but not top priority right now.
+  <rule ref="rulesets/java/design.xml/PositionLiteralsFirstInCaseInsensitiveComparisons"/>-->
   <rule ref="rulesets/java/design.xml/UnnecessaryLocalBeforeReturn"/>
   <rule ref="rulesets/java/design.xml/NonThreadSafeSingleton"/>
   <rule ref="rulesets/java/design.xml/SingleMethodSingleton"/>
@@ -155,7 +157,8 @@
   <rule ref="rulesets/java/design.xml/SimplifyBooleanExpressions"/>
   <rule ref="rulesets/java/design.xml/AssignmentToNonFinalStatic"/>
   <rule ref="rulesets/java/design.xml/MissingStaticMethodInNonInstantiatableClass"/>
-  <rule ref="rulesets/java/design.xml/PositionLiteralsFirstInComparisons"/>
+  <!-- Disabled.  Could enforce in future, but not top priority right now.
+  <rule ref="rulesets/java/design.xml/PositionLiteralsFirstInComparisons"/>-->
   <rule ref="rulesets/java/empty.xml/EmptyCatchBlock"/>
   <rule ref="rulesets/java/empty.xml/EmptyWhileStmt"/>
   <rule ref="rulesets/java/empty.xml/EmptyFinallyBlock"/>
@@ -227,7 +230,8 @@
   <rule ref="rulesets/java/optimizations.xml/AvoidInstantiatingObjectsInLoops"/>   -->
   <rule ref="rulesets/java/optimizations.xml/UseArrayListInsteadOfVector"/>
   <rule ref="rulesets/java/optimizations.xml/SimplifyStartsWith"/>
-  <rule ref="rulesets/java/optimizations.xml/UseStringBufferForStringAppends"/>
+  <!-- Disabled.  Could enforce in future, but not top priority right now.
+  <rule ref="rulesets/java/optimizations.xml/UseStringBufferForStringAppends"/>-->
   <rule ref="rulesets/java/optimizations.xml/UseArraysAsList"/>
   <rule ref="rulesets/java/optimizations.xml/AvoidArrayLoops"/>
   <rule ref="rulesets/java/optimizations.xml/UnnecessaryWrapperObjectCreation"/>
@@ -272,7 +276,8 @@
   <rule ref="rulesets/java/unnecessary.xml/UnnecessaryFinalModifier"/>
   <rule ref="rulesets/java/unnecessary.xml/UselessOverridingMethod"/>
   <rule ref="rulesets/java/unnecessary.xml/UnusedNullCheckInEquals"/>
-  <rule ref="rulesets/java/unnecessary.xml/UselessParentheses"/>
+  <!-- Disabled.  Could enforce in future, but not top priority right now
+  <rule ref="rulesets/java/unnecessary.xml/UselessParentheses"/>-->
   <rule ref="rulesets/java/unnecessary.xml/UselessQualifiedThis"/>
   <rule ref="rulesets/java/unnecessary.xml/UselessOperationOnImmutable"/>
   <rule ref="rulesets/java/unnecessary.xml/UnnecessaryReturn"/>