jdsmithsos opened a new issue, #8395:
URL: https://github.com/apache/netbeans/issues/8395
### Apache NetBeans version
Apache NetBeans 25
### What happened
Using Java 21.
When upgrading the NetBeans version from RELEASE240 to RELEASE250.
The application project build completed successfully with no compile errors.
When running the successfully rebuilt project, get the following exception:
java.lang.UnsupportedOperationException: The Security Manager is deprecated
and will be removed in a future release
at java.base/java.lang.System.setSecurityManager(System.java:430)
at org.netbeans.TopSecurityManager.install(TopSecurityManager.java:525)
at
org.netbeans.core.NbLifecycleManager.advancePolicy(NbLifecycleManager.java:69)
at org.netbeans.core.GuiRunLevel.run(GuiRunLevel.java:84)
at org.netbeans.core.startup.Main.start(Main.java:316)
at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:98)
at java.base/java.lang.Thread.run(Thread.java:1583)
I am using the NetBeans IDE version 25, which is also running on Java 21.
The IDE works perfectly without startup error.
### Language / Project Type / NetBeans Component
Java Maven application
### How to reproduce
In the project Maven pom.xml change the netbeans.version to RELEASE250,
rebuild, and run
### Did this work correctly in an earlier version?
Apache NetBeans 24
### Operating System
Windows 11
### JDK
21
### Apache NetBeans packaging
Apache NetBeans platform
### Anything else
_No response_
### Are you willing to submit a pull request?
No
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