java.lang.RuntimeException: Uncompilable code

[tretonio]

Apache NetBeans version

Apache NetBeans 29

What happened

After compiling the project with "Clean and Build", this error appears when running the application through "Run" or "Debug", showing this error message:
"java.lang.RuntimeException: Uncompilable code"

Language / Project Type / NetBeans Component

java ant

How to reproduce

After compiling the project with "Clean and Build", this error appears when running the application through "Run" or "Debug", showing this error message:
"java.lang.RuntimeException: Uncompilable code"

Did this work correctly in an earlier version?

Apache NetBeans 29

Operating System

Linux , Ubuntu 20.04 LTS

JDK

openjdk version "25.0.1" 2025-10-21

Apache NetBeans packaging

Apache NetBeans binary zip

Anything else

After compiling the project with "Clean and Build", this error appears when running the application through "Run" or "Debug", showing this error message:
"java.lang.RuntimeException: Uncompilable code"

Are you willing to submit a pull request?

No

[mbien]

would require a reproducer before it can be investigated and also more than the first line of the exception