diff --git a/src/java/main/br/ufpe/cin/groundhog/parser/JavaParser.java b/src/java/main/br/ufpe/cin/groundhog/parser/JavaParser.java
index 904bc4b..454a530 100644
--- a/src/java/main/br/ufpe/cin/groundhog/parser/JavaParser.java
+++ b/src/java/main/br/ufpe/cin/groundhog/parser/JavaParser.java
@@ -109,7 +109,7 @@ public JSONObject parseToJSON() throws IOException, JSONException {
 	}
 	
 	/**
-	 * Pretty print metrics. 
+	 * Pretty print metrics
 	 * @param counters parse method result 
 	 */
 	public static void printResult(HashMap<String, HashMap<String, MutableInt>> counters) {
diff --git a/src/java/main/br/ufpe/cin/groundhog/search/SearchException.java b/src/java/main/br/ufpe/cin/groundhog/search/SearchException.java
index 059f628..6f3b273 100644
--- a/src/java/main/br/ufpe/cin/groundhog/search/SearchException.java
+++ b/src/java/main/br/ufpe/cin/groundhog/search/SearchException.java
@@ -8,5 +8,4 @@ public class SearchException extends GroundhogException {
 	public SearchException(Exception e) {
 		super(e);
 	}
-	
 }
\ No newline at end of file
diff --git a/src/java/main/br/ufpe/cin/groundhog/util/FileUtil.java b/src/java/main/br/ufpe/cin/groundhog/util/FileUtil.java
index 7c38c46..f0c698b 100644
--- a/src/java/main/br/ufpe/cin/groundhog/util/FileUtil.java
+++ b/src/java/main/br/ufpe/cin/groundhog/util/FileUtil.java
@@ -10,6 +10,7 @@
 
 public class FileUtil {
 	private static FileUtil instance;
+	private ArrayList<File> createdTempDirs;
 	
 	public static FileUtil getInstance() {
 		if (instance == null) {
@@ -18,32 +19,53 @@ public static FileUtil getInstance() {
 		return instance;
 	}
 	
-	private ArrayList<File> createdTempDirs;
-	
 	private FileUtil() {
-		createdTempDirs = new ArrayList<File>();
+		this.createdTempDirs = new ArrayList<File>();
 	}
 	
+	/**
+	 * 
+	 * @return the created temporary directory
+	 */
 	public synchronized File createTempDir() {
 		File tempDir = Files.createTempDir();
-		createdTempDirs.add(tempDir);
+		this.createdTempDirs.add(tempDir);
 		return tempDir;
 	}
 	
+	/**
+	 * Deletes the temporary directories used to store the
+	 * downloaded the projects.
+	 * 
+	 * @throws IOException
+	 */
 	public synchronized void deleteTempDirs() throws IOException {
-		for (File tempDir : createdTempDirs) {
+		for (File tempDir : this.createdTempDirs) {
 			if (tempDir.exists()) {
 				FileUtils.deleteDirectory(tempDir);
 			}
 		}
 	}
 	
+	/**
+	 * 
+	 * @param file the file to which the string will be written to
+	 * @param data the string to be written to the file
+	 * @throws IOException
+	 */
 	public void writeStringToFile(File file, String data) throws IOException {
 		FileUtils.writeStringToFile(file, data);
 	}
 	
+	/**
+	 * Takes a directory and moves it to another directory
+	 * 
+	 * @param srcDir the directory to be moved
+	 * @param destDir the destination directory
+	 * @throws IOException
+	 */
 	public void copyDirectory(File srcDir, File destDir) throws IOException {
 		FileUtils.copyDirectory(srcDir, destDir);
+		// TODO: add tests 
 	}
-	
 }
\ No newline at end of file