Use one line for each declaration, it enhances code readability (codacy)

src/main/java/com/owncloud/android/authentication/AccountUtils.java

@@ -208,7 +208,10 @@ public class AccountUtils {
             if (currentAccountVersion == null) {
                 Log_OC.i(TAG, "Upgrading accounts to account version #" + ACCOUNT_VERSION);
                 Account[] ocAccounts = accountMgr.getAccountsByType(MainApp.getAccountType());
-                String serverUrl, username, newAccountName, password;
+                String serverUrl;
+                String username;
+                String newAccountName;
+                String password;
                 Account newAccount;
                 for (Account account : ocAccounts) {
                     // build new account name

src/main/java/com/owncloud/android/files/services/IndexedForest.java

@@ -115,7 +115,8 @@ public class IndexedForest<V> {
             String currentPath = remotePath;
             String parentPath = null;
             String parentKey = null;
-            Node<V> currentNode = valuedNode, parentNode = null;
+            Node<V> currentNode = valuedNode;
+            Node<V> parentNode = null;
             boolean linked = false;
             while (!OCFile.ROOT_PATH.equals(currentPath) && !linked) {
                 parentPath = new File(currentPath).getParent();

src/main/java/com/owncloud/android/ui/CustomPopup.java

@@ -136,7 +136,8 @@ public class CustomPopup {
                 LayoutParams.WRAP_CONTENT));
         root.measure(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
 
-        int rootW = root.getWidth(), rootH = root.getHeight();
+        int rootW = root.getWidth();
+        int rootH = root.getHeight();
         int screenW = mWManager.getDefaultDisplay().getWidth();
 
         int xpos = ((screenW - rootW) / 2) + x;