FindBugs appeased

src/com/owncloud/android/MainApp.java

@@ -39,6 +39,8 @@ import com.owncloud.android.ui.activity.Preferences;
 
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+
 
 /**
  * Main Application of the project

src/com/owncloud/android/utils/FileStorageUtils.java

@@ -291,7 +291,7 @@ public class FileStorageUtils {
         List<File> files = new ArrayList<File>(Arrays.asList(filesArray));
 
         Collections.sort(files, new Comparator<File>() {
-            @SuppressFBWarnings(value = "Bx")
+            @SuppressFBWarnings(value = "Bx", justification = "Would require stepping up API level")
             public int compare(File o1, File o2) {
             Long obj1 = o1.lastModified();
             return multiplier * obj1.compareTo(o2.lastModified());
@@ -309,7 +309,7 @@ public class FileStorageUtils {
         final int multiplier = mSortAscending ? 1 : -1;
 
         Collections.sort(files, new Comparator<OCFile>() {
-            @SuppressFBWarnings(value = "Bx")
+            @SuppressFBWarnings(value = "Bx", justification = "Would require stepping up API level")
             public int compare(OCFile o1, OCFile o2) {
                 if (o1.isFolder() && o2.isFolder()) {
                     Long obj1 = o1.getFileLength();
@@ -338,7 +338,7 @@ public class FileStorageUtils {
         List<File> files = new ArrayList<File>(Arrays.asList(filesArray));
 
         Collections.sort(files, new Comparator<File>() {
-            @SuppressFBWarnings(value = "Bx")
+            @SuppressFBWarnings(value = "Bx", justification = "Would require stepping up API level")
             public int compare(File o1, File o2) {
                 if (o1.isDirectory() && o2.isDirectory()) {
                     Long obj1 = getFolderSize(o1);
@@ -362,7 +362,7 @@ public class FileStorageUtils {
      * Sorts list by Name
      * @param files     files to sort
      */
-    @SuppressFBWarnings(value = "Bx")
+    @SuppressFBWarnings(value = "Bx", justification = "Would require stepping up API level")
     public static Vector<OCFile> sortOCFilesByName(Vector<OCFile> files){
         final int multiplier = mSortAscending ? 1 : -1;