Fixes from CR

src/com/owncloud/android/operations/CreateShareViaLinkOperation.java

@@ -116,7 +116,8 @@ public class CreateShareViaLinkOperation extends SyncOperation {
 
     public Intent getSendIntentWithSubject(Context context) {
         if (context != null && mSendIntent != null && mSendIntent.getStringExtra(Intent.EXTRA_SUBJECT) != null) {
-            if (getClient() == null || getClient().getCredentials().getUsername() == null) {
+            if (getClient() == null || getClient().getCredentials() == null ||
+                    getClient().getCredentials().getUsername() == null) {
                 mSendIntent.putExtra(
                         Intent.EXTRA_SUBJECT,
                         context.getString(R.string.subject_shared_with_you, mFileName)

src/com/owncloud/android/operations/CreateShareWithShareeOperation.java

@@ -102,11 +102,7 @@ public class CreateShareWithShareeOperation extends SyncOperation {
     private void updateData(OCShare share) {
         // Update DB with the response
         share.setPath(mPath);
-        if (mPath.endsWith(FileUtils.PATH_SEPARATOR)) {
-            share.setIsFolder(true);
-        } else {
-            share.setIsFolder(false);
-        }
+        share.setIsFolder(mPath.endsWith(FileUtils.PATH_SEPARATOR));
         share.setPermissions(READ_ONLY);
         
         getStorageManager().saveShare(share);