[jira] [Commented] (GROOVY-11745) Groovy5 calling Groovy4 library with setter throws NPE

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GROOVY-11745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18016639#comment-18016639 ] 

ASF GitHub Bot commented on GROOVY-11745:
-----------------------------------------

eric-milles opened a new pull request, #2284:
URL: https://github.com/apache/groovy/pull/2284

   (no comment)




> Groovy5 calling Groovy4 library with setter throws NPE
> ------------------------------------------------------
>
>                 Key: GROOVY-11745
>                 URL: https://issues.apache.org/jira/browse/GROOVY-11745
>             Project: Groovy
>          Issue Type: Bug
>    Affects Versions: 4.0.28, 5.0.0
>            Reporter: Aleks Tamarkin
>            Assignee: Eric Milles
>            Priority: Major
>
> When Groovy5 calls Groovy4 code that sets a property which should be calling a setter under the hood, an NPE is thrown.
> The stack looks like 
>  
> {code:java}
> Exception in thread "main" java.lang.NullPointerException 
>   at java.base/java.lang.Class.isAssignableFrom(Native Method) 
>   at groovy.lang.MetaClassImpl.isVisibleProperty(MetaClassImpl.java:2104) 
>   at groovy.lang.MetaClassImpl.setProperty(MetaClassImpl.java:2761) 
>   at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.setProperty(ScriptBytecodeAdapter.java:509){code}
> I am seeing this error fairly randomly on setters. 
> One example in the Groovy4 code being called by Groovy5 looks like 
> {code:java}
> HttpURLConnection c = "<someUrl>".toURL().openConnection() as HttpURLConnection
> ...
> c.useCaches = false // this line has the error{code}
>  



--
This message was sent by Atlassian Jira
(v8.20.10#820010)