[NETBEANS-6062] Static block not executed in Java Ant project

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 12.4

Environment

NetBeans 12.4

Java 15.0.2 (Adopt Open JDK)

Windows 10

• External issue URL: https://stackoverflow.com/questions/69230774/why-are-static-blocks-not-being-executed-in-the-netbeans-ide-java/69321778#69321778
• Assignee: Unassigned
• Reporter: Andrew James
• Created: 24/Sep/21 23:27
• Updated: 25/Sep/21 18:30
• Resolved: 25/Sep/21 18:30

Description

A simple Java Ant project in NetBeans 12.4 (using Java 15) does not execute the static code block, when the project is executed from within the IDE.

Steps to reproduce:

File > New Project > Java with Ant

Create two classes:

(Whenever I try to format the below code, it looks completely wrong in the ticket, so it's just presented as plain text - sorry I do not know how this system handles code snippets).

1) Main.java

public class Main {
     public static void main(String args[]) {
         System.out.println(Test.i);
     }
}

2) Test.java

class Test {
     static int i;
     static {
         i = 10;
     }
}

 

Actual results:

When the project is run from within the IDE, the output is "0". The static block in Test is not executed.

Expected results:

The expected output is "10". The static block in Test is executed.

Note also:

The JAR built by the project runs correctly, when executed from the command line, outside of the IDE.

The same code shown above also runs as expected in the IDE when built using a Java Maven project, instead of a Java Ant project.

This behavior does not appear when executing the same code, using NetBeans 12.0 and Java 11.

Issue Links

• is fixed by: NETBEANS-5757 Compile-on-Save drops static initializer (vanilla javac)