Re: What is this issue with java.util.zip.CRC32C?

You should use Tomcat 9. T10 is not compatible with non-jakarta apps.
https://tomcat.apache.org/whichversion.html#:~:text=Tomcat%209%20is%20the%20last%20major%20Tomcat%20version%20supporting%20Java%20EE

There is conversion tool if you want to try Jakarta (converts imports), 
but as you probably know that probably also requires upgrading Spring, 
Hibernate etc and probably rewriting most of DAO and Security...

Cheers,
Maciej Nux

Jens Zurawski (2025-06-06 14:45):
> Oh, I can give a simple test case :-)
>
> - just take a freshly installed NB 26 (or at least with a new and 
> empty userdir),
> - create new Project "Java with Maven -> Web Application"
> - assign a server (I'm using a TomEE 10.01 installation with Jakarta 
> EE 10)
> - save project
>
> wait some seconds, and et voila, in the message.log you can see:
>
> INFO [org.netbeans.ui.maven.project]: A Maven project was opened. Appending the project's packaging type.
> INFO [org.netbeans.ui.metrics.maven]: USG_PROJECT_OPEN_MAVEN
> INFO [org.netbeans.ui.metrics.projects]: USG_PROJECT_OPEN
> INFO [org.netbeans.ui.indexing]: Indexing finished, indexing took 942 ms.
> INFO [org.netbeans.ui.indexing]: Indexing started, time from last indexing 0 ms.
> INFO [org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater]: Resolving dependencies took: 36 ms
> Even though the source level of E:\test\Netbeans\mavenproject1\src\main\java;E:\test\Netbeans\mavenproject1\src\main\webapp;E:\test\Netbeans\mavenproject1\src\main\resources is set to: 11, java.util.zip.CRC32C cannot be found on the system module path:
> WARNING [null]: Last record repeated 6 more times.
> WARNING [null]: Last record repeated 2 more times.
>
> Nothing else has to be done to get these lines (at least on my system)
>
> Hope this helps?
>
> cu
> Jens
>
>
>
> Am 06.06.2025 um 14:27 schrieb Jens Zurawski:
>> Sadly, this doesn't help either.
>>
>> I've also tried with a complete fresh NB 26 without importing 
>> settings from old installations. Still the messages are coming.
>>
>> Unfortunately I'm currently not able to produce a simple test case to 
>> reproduce this with a simple maven application.
>> Anything I can provide to give more insight?
>>
>> cu
>> Jens
>>
>> Am 06.06.2025 um 13:50 schrieb Neil C Smith:
>>> On Fri, 6 Jun 2025 at 12:28, Jens Zurawski<[email protected]> wrote:
>>>>                  <artifactId>maven-compiler-plugin</artifactId>
>>>>                  <version>3.14.0</version>
>>>>                  <configuration>
>>>>                      <source>17</source>
>>>>                      <target>17</target>
>>>>                      <compilerArguments>
>>>>                          <endorseddirs>${endorsed.dir}</endorseddirs>
>>>>                      </compilerArguments>
>>>>                  </configuration>
>>> Possibly try changing that to just
>>>
>>> <configuration>
>>>    <release>17</release>
>>> </configuration>
>>>
>>> Endorsed dirs isn't supported by JDK 9+, so I wonder if this is
>>> causing the messages.
>>>
>>> Best wishes,
>>>
>>> Neil
>>>
>>>
>