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Posted to notifications@netbeans.apache.org by "juersimon (via GitHub)" <gi...@apache.org> on 2023/03/26 17:47:58 UTC

[GitHub] [netbeans] juersimon opened a new issue, #5723: Exception: Uncompilable code at instanceof with pattern matching JDK-17 debug / run in Netbeans

juersimon opened a new issue, #5723:
URL: https://github.com/apache/netbeans/issues/5723

   ### Apache NetBeans version
   
   Apache NetBeans 17
   
   ### What happened
   
   When using instanceof with pattern matching a RuntimeException Uncompilable code is thrown with JDK 17 if the program is started in Netbeans with run or debug . The generated jar runs without errors.
   This behavior is also the case with JDK 18, JDK 19/20 work.
   `
   Number n = Long.valueOf(1);
   if (n instanceof Long l) {
       System.out.println("Long: " + l);
   }
   `
   
   ### How to reproduce
   
   The error occurs when an Ant project is created and Compile on Save is activated. JDK 17 (or 18) is selected as the Java platform. The default platform is irrelevant. JDK 17 is used as source/binary format.
   The following compiles without errors and the jar produced runs with Java 17. If the program is started with debog or run in Netbeans, then the exception is thrown. If JDK 19 or JDK 20 is selected as platform, run and debug work without error.
   `public class Netbeans17Instanceof {
   
       public static void main(String[] args) {
           try {
               Number n = Long.valueOf(1);
               if (n instanceof Long l) {
                   System.out.println("Long: " + l);
               }
           } catch (Exception ex) {
               ex.printStackTrace(System.err);
           }
       }
   }`
   
   ### Did this work correctly in an earlier version?
   
   Apache NetBeans 15
   
   ### Operating System
   
   Windows 10 / Ubuntu 22.04.02
   
   ### JDK
   
   adoptium 17.0.6
   
   ### Apache NetBeans packaging
   
   Apache NetBeans provided installer
   
   ### Anything else
   
   _No response_
   
   ### Are you willing to submit a pull request?
   
   No


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[GitHub] [netbeans] neilcsmith-net commented on issue #5723: Exception: Uncompilable code at instanceof with pattern matching JDK-17 debug / run in Netbeans

Posted by "neilcsmith-net (via GitHub)" <gi...@apache.org>.
neilcsmith-net commented on issue #5723:
URL: https://github.com/apache/netbeans/issues/5723#issuecomment-1484170841

   Thanks for the report.  This is a duplicate of #5260 and already fixed in master.  Will be in NB18.  Workaround is to disable compile on save.


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[GitHub] [netbeans] neilcsmith-net closed issue #5723: Exception: Uncompilable code at instanceof with pattern matching JDK-17 debug / run in Netbeans

Posted by "neilcsmith-net (via GitHub)" <gi...@apache.org>.
neilcsmith-net closed issue #5723: Exception: Uncompilable code at instanceof with pattern matching JDK-17 debug / run in Netbeans
URL: https://github.com/apache/netbeans/issues/5723


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