Fix Java abort proof lint

Author: kvz

example/src/main/java/io/tus/java/example/Api2DevdockTusAbortUpload.java

@@ -116,7 +116,10 @@ public void run() {
                         activeUploader.set(uploader);
                         uploader.setChunkSize(content.length);
                         uploader.setRequestPayloadSize(content.length);
-                        while (uploader.uploadChunk() > -1) { }
+                        int uploadProgress = uploader.uploadChunk();
+                        while (uploadProgress > -1) {
+                            uploadProgress = uploader.uploadChunk();
+                        }
                         uploader.finish();
                         successCalled.set(true);
                     } catch (Exception error) {

src/main/java/io/tus/java/client/TusUploader.java

@@ -562,7 +562,7 @@ private long getHeaderFieldLong(URLConnection connection, String field) {
         }
     }
 
-    TusUpload getUpload() {
+    final TusUpload getUpload() {
         return upload;
     }