try to fix timSort error

src/com/owncloud/android/ui/adapter/ExpandableUploadListAdapter.java

@@ -113,16 +113,16 @@ public class ExpandableUploadListAdapter extends BaseExpandableListAdapter imple
                 if (upload1.getUploadEndTimestamp() == 0 || upload2.getUploadEndTimestamp() == 0) {
                     return compareUploadId(upload1, upload2);
                 } else {
-                    return compareUpdateTime(upload1, upload2);
+                     return compareUpdateTime(upload1, upload2);
                 }
             }
 
             private int compareUploadId(OCUpload upload1, OCUpload upload2) {
-                return Long.valueOf(upload1.getUploadId()).compareTo(upload2.getUploadId());
+                return Long.compare(upload1.getUploadId(), upload2.getUploadId());
             }
 
             private int compareUpdateTime(OCUpload upload1, OCUpload upload2) {
-                return Long.valueOf(upload2.getUploadEndTimestamp()).compareTo(upload1.getUploadEndTimestamp());
+                return Long.compare(upload2.getUploadEndTimestamp(), upload1.getUploadEndTimestamp());
             }
         };
 

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

@@ -327,7 +327,7 @@ public class FileStorageUtils {
             public int compare(OCFile o1, OCFile o2) {
                 if (o1.isFolder() && o2.isFolder()) {
                     Long obj1 = o1.getFileLength();
-                    return multiplier * obj1.compareTo(o2.getFileLength());
+                    return multiplier * obj1., o2.getFileLength());
                 }
                 else if (o1.isFolder()) {
                     return -1;
@@ -337,7 +337,7 @@ public class FileStorageUtils {
                     return 0;
                 } else {
                     Long obj1 = o1.getFileLength();
-                    return multiplier * obj1.compareTo(o2.getFileLength());
+                    return multiplier * Long.compare(obj1, o2.getFileLength());
                 }
             }
         });