Windows32Exception - The parameter is incorrect
Author: phayzeeVWCreated Nov 9, 2025Updated Nov 11, 2025
Hello
I am calling WindowsUtils.getAllWindows(false) from a service every 10 seconds and is throwing a Win32Exception, for some specific windows, I assume.
com.sun.jna.platform.win32.Win32Exception: The parameter is incorrect.
at com.sun.jna.platform.WindowUtils$W32WindowUtils.getProcessFilePath(WindowUtils.java:1302)
at com.sun.jna.platform.WindowUtils$W32WindowUtils$5.callback(WindowUtils.java:1252)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at com.sun.jna.CallbackReference$DefaultCallbackProxy.invokeCallback(CallbackReference.java:585)
at com.sun.jna.CallbackReference$DefaultCallbackProxy.callback(CallbackReference.java:613)
at com.sun.jna.Native.invokeInt(Native Method)
at com.sun.jna.Function.invoke(Function.java:429)I am not sure how to even begin debugging this error or what to do about it. It keeps filling my logs and I cannot see relevant logs anymore
Source: java-native-access/jna