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Posted to issues@nifi.apache.org by "David Handermann (Jira)" <ji...@apache.org> on 2022/04/06 15:55:00 UTC

[jira] [Assigned] (NIFI-9882) NullPointerException on startup from HtmlDocumentationWriter results in component documentation not being available

     [ https://issues.apache.org/jira/browse/NIFI-9882?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Handermann reassigned NIFI-9882:
--------------------------------------

    Assignee: David Handermann

> NullPointerException on startup from HtmlDocumentationWriter results in component documentation not being available
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: NIFI-9882
>                 URL: https://issues.apache.org/jira/browse/NIFI-9882
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>            Reporter: Mark Payne
>            Assignee: David Handermann
>            Priority: Blocker
>             Fix For: 1.17.0, 1.16.1
>
>
> On startup, we see this in the nifi-app.log:
> {code:java}
> 2022-04-06 11:32:42,656 WARN [main] o.apache.nifi.documentation.DocGenerator Unable to document: class org.apache.nifi.processors.mongodb.gridfs.PutGridFS
> java.lang.NullPointerException: null
>     at com.ctc.wstx.sw.BaseStreamWriter.writeCharacters(BaseStreamWriter.java:458)
>     at org.apache.nifi.documentation.html.HtmlDocumentationWriter.writeSimpleElement(HtmlDocumentationWriter.java:852)
>     at org.apache.nifi.documentation.html.HtmlDocumentationWriter.writeProperties(HtmlDocumentationWriter.java:518)
>     at org.apache.nifi.documentation.html.HtmlDocumentationWriter.writeBody(HtmlDocumentationWriter.java:160)
>     at org.apache.nifi.documentation.html.HtmlDocumentationWriter.write(HtmlDocumentationWriter.java:92)
>     at org.apache.nifi.documentation.DocGenerator.document(DocGenerator.java:142)
>     at org.apache.nifi.documentation.DocGenerator.documentConfigurableComponent(DocGenerator.java:104)
>     at org.apache.nifi.documentation.DocGenerator.generate(DocGenerator.java:65)
>     at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:1028)
>     at org.apache.nifi.NiFi.<init>(NiFi.java:170)
>     at org.apache.nifi.NiFi.<init>(NiFi.java:82)
>     at org.apache.nifi.NiFi.main(NiFi.java:330)
> 2022-04-06 11:32:42,657 WARN [main] o.apache.nifi.documentation.DocGenerator Unable to document: class org.apache.nifi.processors.standard.SegmentContent
> java.lang.NullPointerException: null
>     at com.ctc.wstx.sw.BaseStreamWriter.writeCharacters(BaseStreamWriter.java:458)
>     at org.apache.nifi.documentation.html.HtmlDocumentationWriter.writeSimpleElement(HtmlDocumentationWriter.java:852)
>     at org.apache.nifi.documentation.html.HtmlDocumentationWriter.writeProperties(HtmlDocumentationWriter.java:518)
>     at org.apache.nifi.documentation.html.HtmlDocumentationWriter.writeBody(HtmlDocumentationWriter.java:160)
>     at org.apache.nifi.documentation.html.HtmlDocumentationWriter.write(HtmlDocumentationWriter.java:92)
>     at org.apache.nifi.documentation.DocGenerator.document(DocGenerator.java:142)
>     at org.apache.nifi.documentation.DocGenerator.documentConfigurableComponent(DocGenerator.java:104)
>     at org.apache.nifi.documentation.DocGenerator.generate(DocGenerator.java:65)
>     at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:1028)
>     at org.apache.nifi.NiFi.<init>(NiFi.java:170)
>     at org.apache.nifi.NiFi.<init>(NiFi.java:82)
>     at org.apache.nifi.NiFi.main(NiFi.java:330) {code}
> For pretty much every component. As a result, the documentation is unavailable when clicking "View Usage"



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