Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException: Cannot read field "x" because "rc" is null

[Omico]

Affected platforms

• Desktop (Windows)

Versions

• Libraries:
  • Compose Multiplatform version: 1.7.0-dev1703
• Kotlin version: 2.0.0
• JDK (for desktop issues): 17

To Reproduce
Steps to reproduce the behavior:
Run this & input any chars.

@OptIn(ExperimentalMaterial3Api::class)
fun main() {
   singleWindowApplication {
       Scaffold(
           topBar = {
               TopAppBar(
                   title = {
                       var title by remember { mutableStateOf("Default") }
                       BasicTextField(
                           value = title,
                           onValueChange = { title = it },
                           textStyle = LocalTextStyle.current,
                           singleLine = true,
                           modifier = Modifier.fillMaxWidth(),
                       )
                   },
               )
           },
           content = {}
       )
   }
}

This will throw:

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException: Cannot read field "x" because "rc" is null
	at java.desktop/sun.awt.windows.WInputMethod$1.run(WInputMethod.java:617)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:97)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:747)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:744)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

[igordmn]

Thanks!

Reproduced in 1.7.0-dev1703 with Chinese input.

Not reproduced in 1.6.10 or with English input.

It seems only the popup position is affected. Crash only appears in the console, it doesn't crash the app.

[igordmn]

The same crash was fixed before in JetBrains/compose-multiplatform-core#339. It might doesn't work after big TextField rewriting in 1.7.