diff --git a/src/main/java/com/owncloud/android/utils/FileSortOrderByDate.java b/src/main/java/com/owncloud/android/utils/FileSortOrderByDate.java
index bbeefbde74..eaf467004a 100644
--- a/src/main/java/com/owncloud/android/utils/FileSortOrderByDate.java
+++ b/src/main/java/com/owncloud/android/utils/FileSortOrderByDate.java
@@ -35,7 +35,7 @@ import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 
 public class FileSortOrderByDate extends FileSortOrder {
 
-    public FileSortOrderByDate(String name, boolean ascending) {
+    FileSortOrderByDate(String name, boolean ascending) {
         super(name, ascending);
     }
 
@@ -47,13 +47,8 @@ public class FileSortOrderByDate extends FileSortOrder {
     public List<OCFile> sortCloudFiles(List<OCFile> files) {
         final int multiplier = mAscending ? 1 : -1;
 
-        Collections.sort(files, new Comparator<OCFile>() {
-            @SuppressFBWarnings(value = "Bx", justification = "Would require stepping up API level")
-            public int compare(OCFile o1, OCFile o2) {
-                Long obj1 = o1.getModificationTimestamp();
-                return multiplier * obj1.compareTo(o2.getModificationTimestamp());
-            }
-        });
+        Collections.sort(files, (o1, o2) ->
+                multiplier * Long.compare(o1.getModificationTimestamp(), o2.getModificationTimestamp()));
 
         return super.sortCloudFiles(files);
     }
@@ -67,10 +62,7 @@ public class FileSortOrderByDate extends FileSortOrder {
     public List<File> sortLocalFiles(List<File> files) {
         final int multiplier = mAscending ? 1 : -1;
 
-        Collections.sort(files, (o1, o2) -> {
-            Long obj1 = o1.lastModified();
-            return multiplier * obj1.compareTo(o2.lastModified());
-        });
+        Collections.sort(files, (o1, o2) -> multiplier * Long.compare(o1.lastModified(),o2.lastModified()));
 
         return files;
     }
diff --git a/src/main/java/com/owncloud/android/utils/FileSortOrderByName.java b/src/main/java/com/owncloud/android/utils/FileSortOrderByName.java
index e819a14418..1da38f047d 100644
--- a/src/main/java/com/owncloud/android/utils/FileSortOrderByName.java
+++ b/src/main/java/com/owncloud/android/utils/FileSortOrderByName.java
@@ -36,7 +36,7 @@ import third_parties.daveKoeller.AlphanumComparator;
  */
 public class FileSortOrderByName extends FileSortOrder {
 
-    public FileSortOrderByName(String name, boolean ascending) {
+    FileSortOrderByName(String name, boolean ascending) {
         super(name, ascending);
     }
 
@@ -49,17 +49,15 @@ public class FileSortOrderByName extends FileSortOrder {
     public List<OCFile> sortCloudFiles(List<OCFile> files) {
         final int multiplier = mAscending ? 1 : -1;
 
-        Collections.sort(files, new Comparator<OCFile>() {
-            public int compare(OCFile o1, OCFile o2) {
-                if (o1.isFolder() && o2.isFolder()) {
-                    return multiplier * new AlphanumComparator().compare(o1, o2);
-                } else if (o1.isFolder()) {
-                    return -1;
-                } else if (o2.isFolder()) {
-                    return 1;
-                }
+        Collections.sort(files, (o1, o2) -> {
+            if (o1.isFolder() && o2.isFolder()) {
                 return multiplier * new AlphanumComparator().compare(o1, o2);
+            } else if (o1.isFolder()) {
+                return -1;
+            } else if (o2.isFolder()) {
+                return 1;
             }
+            return multiplier * new AlphanumComparator().compare(o1, o2);
         });
 
         return super.sortCloudFiles(files);
diff --git a/src/main/java/com/owncloud/android/utils/FileSortOrderBySize.java b/src/main/java/com/owncloud/android/utils/FileSortOrderBySize.java
index 749c959ede..f5a91833e4 100644
--- a/src/main/java/com/owncloud/android/utils/FileSortOrderBySize.java
+++ b/src/main/java/com/owncloud/android/utils/FileSortOrderBySize.java
@@ -35,7 +35,7 @@ import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 
 public class FileSortOrderBySize extends FileSortOrder {
 
-    public FileSortOrderBySize(String name, boolean ascending) {
+    FileSortOrderBySize(String name, boolean ascending) {
         super(name, ascending);
     }
 
@@ -47,21 +47,18 @@ public class FileSortOrderBySize extends FileSortOrder {
     public List<OCFile> sortCloudFiles(List<OCFile> files) {
         final int multiplier = mAscending ? 1 : -1;
 
-        Collections.sort(files, new Comparator<OCFile>() {
-            @SuppressFBWarnings(value = "Bx")
-            public int compare(OCFile o1, OCFile o2) {
-                if (o1.isFolder() && o2.isFolder()) {
-                    Long obj1 = o1.getFileLength();
-                    return multiplier * obj1.compareTo(o2.getFileLength());
-                } else if (o1.isFolder()) {
-                    return -1;
+        Collections.sort(files, (o1, o2) -> {
+            if (o1.isFolder() && o2.isFolder()) {
+                Long obj1 = o1.getFileLength();
+                return multiplier * obj1.compareTo(o2.getFileLength());
+            } else if (o1.isFolder()) {
+                return -1;
 
-                } else if (o2.isFolder()) {
-                    return 1;
-                } else {
-                    Long obj1 = o1.getFileLength();
-                    return multiplier * obj1.compareTo(o2.getFileLength());
-                }
+            } else if (o2.isFolder()) {
+                return 1;
+            } else {
+                Long obj1 = o1.getFileLength();
+                return multiplier * obj1.compareTo(o2.getFileLength());
             }
         });