# Twitter oAuth2.0 Node

**URL:** <https://forum.knime.com/t/twitter-oauth2-0-node/43108>\
**Category:** Community Extensions\
**Tags:** palladian-selenium\
**Created:** [May 18, 2022, 1:40pm UTC](https://forum.knime.com/t/twitter-oauth2-0-node/43108 "2022-05-18T13:40:26Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![nxfxcom](https://forum-cdn.knime.com/letter_avatar_proxy/v4/letter/n/4af34b/32.png) [@nxfxcom](https://forum.knime.com/u/nxfxcom)\
**Post date:** [May 18, 2022, 1:40pm UTC](https://forum.knime.com/t/twitter-oauth2-0-node/43108/1 "2022-05-18T13:40:26Z")

</div>

Hello,

Thank you for continuously developing great nodes. I have been trying to use the Oauth2 Beta one and they all seem to work fine EXCLUDING the twitter one… And when I go the to URL I get:

HTTP ERROR 500 java.lang.NullPointerException  
URI: /  
STATUS: 500  
MESSAGE: java.lang.NullPointerException  
SERVLET: -  
CAUSED BY: java.lang.NullPointerException  
Caused by:  
java.lang.NullPointerException  
at ws.palladian.nodes.oauth.OAuth10aFlow.validCallbackResponse(OAuth10aFlow.java:33)  
at ws.palladian.nodes.oauth.OAuthNodeDialog$2.handle(OAuthNodeDialog.java:152)  
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)  
at org.eclipse.jetty.server.Server.handle(Server.java:516)  
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388)  
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633)  
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380)  
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:279)  
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)  
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)  
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)  
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)  
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)  
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)  
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:135)  
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:779)  
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:911)  
at java.base/java.lang.Thread.run(Unknown Source)

Thank you

---

<div class="post-metadata">

**Author:** ![qqilihq](https://forum-cdn.knime.com/user_avatar/forum.knime.com/qqilihq/32/50_2.png) [@qqilihq](https://forum.knime.com/u/qqilihq)\
**Post date:** [May 18, 2022, 2:38pm UTC](https://forum.knime.com/t/twitter-oauth2-0-node/43108/2 "2022-05-18T14:38:46Z")

</div>

Whoups. Let me have a look at this. Thanks for the bug report and the details!

---

<div class="post-metadata">

**Author:** ![nxfxcom](https://forum-cdn.knime.com/letter_avatar_proxy/v4/letter/n/4af34b/32.png) [@nxfxcom](https://forum.knime.com/u/nxfxcom)\
**Post date:** [May 18, 2022, 5:55pm UTC](https://forum.knime.com/t/twitter-oauth2-0-node/43108/3 "2022-05-18T17:55:37Z")

</div>

Let me know if there is any further info i can provide or testing to help!

---

<div class="post-metadata">

**Author:** ![qqilihq](https://forum-cdn.knime.com/user_avatar/forum.knime.com/qqilihq/32/50_2.png) [@qqilihq](https://forum.knime.com/u/qqilihq)\
**Post date:** [May 18, 2022, 7:23pm UTC](https://forum.knime.com/t/twitter-oauth2-0-node/43108/4 "2022-05-18T19:23:05Z")

</div>

Great. Actually I have just pushed a fix which is currently on the development update site – if you’d be willing to give it a go before we release this, let me know at mail@palladian.ws

Thanks again!

---

<div class="post-metadata">

**Author:** ![qqilihq](https://forum-cdn.knime.com/user_avatar/forum.knime.com/qqilihq/32/50_2.png) [@qqilihq](https://forum.knime.com/u/qqilihq)\
**Post date:** [May 30, 2022, 3:19pm UTC](https://forum.knime.com/t/twitter-oauth2-0-node/43108/5 "2022-05-30T15:19:42Z")

</div>

@nxfxcom Did you receive my email? Is the issue resolved with the latest build?

---

<div class="post-metadata">

**Author:** ![system](https://forum-cdn.knime.com/uploads/default/original/1X/ab3ccf34482a0329361734a18199390177204f15.png) [@system](https://forum.knime.com/u/system)\
**Post date:** [August 28, 2022, 3:20pm UTC](https://forum.knime.com/t/twitter-oauth2-0-node/43108/6 "2022-08-28T15:20:37Z")

</div>

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.