Getting null error from User32.INSTANCE in Java

[Greg Brignola]

I have a demo project in VS Code using JAVA that calls to:

com.sun.jna.platform.win32.User32 user32 = com.sun.jna.platform.win32.User32.INSTANCE;

        WinDef.HWND hwnd = user32.FindWindow(null, "[my window title here]");

        System.out.println("[my window title here] = " + hwnd);

This process works with no issues in a small demo project.

When calling the same code in my main project, Java throws an exception : "com.sun.jdi.InvocationException: Exception occurred in target VM occurred invoking method.."

I'm just not sure where to go from here.

[Matthias Bläsing]

Hi Greg,

please show the full stack trace - you cut where it begins to get
interesting.

The issue looks strang though: com.sun.jdi.InvocationException is an
exception thrown from the java debugging interface and is not thrown
from JNA.

Greetings

Matthias