diff --git a/src/checkstyle/com/puppycrawl/tools/checkstyle/gui/ParseTreeInfoPanel.java b/src/checkstyle/com/puppycrawl/tools/checkstyle/gui/ParseTreeInfoPanel.java
index 2b2da066c..71bb0a4ca 100644
--- a/src/checkstyle/com/puppycrawl/tools/checkstyle/gui/ParseTreeInfoPanel.java
+++ b/src/checkstyle/com/puppycrawl/tools/checkstyle/gui/ParseTreeInfoPanel.java
@@ -19,12 +19,12 @@
 
 package com.puppycrawl.tools.checkstyle.gui;
 
-import antlr.ANTLRException;
-import com.puppycrawl.tools.checkstyle.Checker;
-import com.puppycrawl.tools.checkstyle.TreeWalker;
-import com.puppycrawl.tools.checkstyle.api.DetailAST;
-import com.puppycrawl.tools.checkstyle.api.FileContents;
-import com.puppycrawl.tools.checkstyle.api.Utils;
+import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.event.ActionEvent;
+import java.io.File;
+import java.io.IOException;
+import java.util.TooManyListenersException;
 
 import javax.swing.AbstractAction;
 import javax.swing.JButton;
@@ -34,12 +34,12 @@ import javax.swing.JPanel;
 import javax.swing.JScrollPane;
 import javax.swing.SwingUtilities;
 import javax.swing.filechooser.FileFilter;
-import java.awt.BorderLayout;
-import java.awt.Component;
-import java.awt.event.ActionEvent;
-import java.io.File;
-import java.io.IOException;
-import java.util.TooManyListenersException;
+
+import antlr.ANTLRException;
+import com.puppycrawl.tools.checkstyle.TreeWalker;
+import com.puppycrawl.tools.checkstyle.api.DetailAST;
+import com.puppycrawl.tools.checkstyle.api.FileContents;
+import com.puppycrawl.tools.checkstyle.api.Utils;
 
 /**
  * Displays information about a parse tree.