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Posted to notifications@netbeans.apache.org by "jdsmithsos (via GitHub)" <gi...@apache.org> on 2023/04/07 22:33:42 UTC

[GitHub] [netbeans] jdsmithsos opened a new issue, #5793: NetBeans 17 Background Scanning of Projects doesn't ever complete, without throwing an Unexpected Exception

jdsmithsos opened a new issue, #5793:
URL: https://github.com/apache/netbeans/issues/5793

### Apache NetBeans version

Apache NetBeans 17

### What happened

I have been using NetBeans 12.3 for a while. Have been using NetBeans since 2015 and upgrading occasionally.
Today I downloaded NetBeans 17. Early this morning. Now it is going on 5pm and I am still trying to get this thing to work with my existing NetBeans project. Which I have been using in NetBeans for 7 years now.
NetBeans 17 loads the project, then it goes into Background scanning of projects. And it stays there forever.
It has gone into 100% CPU for a while then an Unexpected Exception is thrown.

I am trying to upgrade my projects to Java 17. I know that NetBeans 13 supports Java 17, but I am trying to go directly to the latest version of NetBeans.

I have spent an entire day trying to get this to work.
I haven't tried going from NetBeans 12 to 13, then 14, then 15, then 16, then finally 17.

### How to reproduce

Install NetBeans 17 and load a NetBeans 12 project.

### Did this work correctly in an earlier version?

Apache NetBeans 12.6 or earlier

### Operating System

Windows 11

### JDK

JDK 17

### Apache NetBeans packaging

Apache NetBeans binary zip

### Anything else

All day this problem has occurred.

### Are you willing to submit a pull request?

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[GitHub] [netbeans] jdsmithsos commented on issue #5793: NetBeans 17 Background Scanning of Projects doesn't ever complete, without throwing an Unexpected Exception

Posted by "jdsmithsos (via GitHub)" <gi...@apache.org>.

jdsmithsos commented on issue #5793:
URL: https://github.com/apache/netbeans/issues/5793#issuecomment-1501912915

   Another update:
   
   I have successfully updated to Netbeans 13, using JDK 12.
   I first updated the <netbeans.version> to RELEASE126, and successfully scanned the projects in NetBeans 12.6.
   Then I updated to RELEASE130, and successfully scanned the projects in NetBeans 13.
   
   I'm glad that I finally figured this out and can move forward now with upgrading to Java 17.
   
   But please, please, take a look at the code for Background scanning of projects and have the scanning gracefully exit if there are issues, rather than running forever consuming memory and CPU.
   


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[GitHub] [netbeans] neilcsmith-net commented on issue #5793: NetBeans 17 Background Scanning of Projects doesn't ever complete, without throwing an Unexpected Exception

Posted by "neilcsmith-net (via GitHub)" <gi...@apache.org>.

neilcsmith-net commented on issue #5793:
URL: https://github.com/apache/netbeans/issues/5793#issuecomment-1501934566

Did you bring over settings and plugins when upgrading the IDE? One potential cause for scanning issues is an older version of nb-javac from plugins than is now bundled in the IDE. Using a clean run (new userdir and cachedir) of the IDE is a good idea in such cases to verify concerns caused in importing settings / plugins, particularly from a few releases back. Cleaning out the cachedir by itself can occasionally fix issues - something I used to notice particularly on first runs when nb-javac was a plugin.

I would use JDK 11, 17 or 19, as they were the main tested on JDKs for NB17 - it's unlikely but possible JDK 12 was a cause of issue.

Closing this as you said you've resolved the issue. Comment again if the problem recurs with the current setup.

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[GitHub] [netbeans] jdsmithsos commented on issue #5793: NetBeans 17 Background Scanning of Projects doesn't ever complete, without throwing an Unexpected Exception

Posted by "jdsmithsos (via GitHub)" <gi...@apache.org>.

jdsmithsos commented on issue #5793:
URL: https://github.com/apache/netbeans/issues/5793#issuecomment-1501803541

An update:

I tried over the weekend without success to get NetBeans to work.
I downloaded NetBeans 13 and 12.6 and each did the same thing. For 13 and 12.6 I used Java 12, the exact same version of Java that I am using with success on NetBeans 12.3.

For 13 I let the background scanning run for over 7 hours. I finally killed NetBeans.
Then experimented with changing the min and max heap size. But the default max heap on my machine is 16288m, so the setting of the heap that I did made no difference. The CPU was near 100% most of the time.

For 12.6 I let the background scanning run overnight for 12 hours. CPU near 100%. I killed NetBeans.

I need to upgrade NetBeans, and I need to upgrade to Java 17.
[messages - 12.6 - not working.log](https://github.com/apache/netbeans/files/11190675/messages.-.12.6.-.not.working.log)
[messages - 12.3 - working.log](https://github.com/apache/netbeans/files/11190682/messages.-.12.3.-.working.log)

Attached are two messages.log. The working 12.3, and the not working 12.6.

12.3 of course works fine, where the projects are scanned within a few seconds.
The logs show a difference of course that somebody needs to look at that understands what the background scanning process is doing.

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[GitHub] [netbeans] neilcsmith-net closed issue #5793: NetBeans 17 Background Scanning of Projects doesn't ever complete, without throwing an Unexpected Exception

Posted by "neilcsmith-net (via GitHub)" <gi...@apache.org>.

neilcsmith-net closed issue #5793: NetBeans 17 Background Scanning of Projects doesn't ever complete, without throwing an Unexpected Exception
URL: https://github.com/apache/netbeans/issues/5793


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