B4J Question B4j 10.20 Beta 4 Error running debug - Minor irritation

[stevel05]

On Running an app in Debug, I seem to be getting this error intermittently. Run it again and it doesn't happen.

Waiting for debugger to connect...
java.lang.ExceptionInInitializerError
    at java.base/java.lang.Class.forName0(Native Method)
    at java.base/java.lang.Class.forName(Class.java:495)
    at java.base/java.lang.Class.forName(Class.java:474)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.loadClass(LauncherImpl.java:383)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplicationWithArgs$3(LauncherImpl.java:422)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:484)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:457)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:456)
    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:184)
    at java.base/java.lang.Thread.run(Thread.java:1589)
Caused by: java.lang.RuntimeException: java.net.SocketException: Connection reset
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:140)
    at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:100)
    at b4j.example.main.<clinit>(main.java:17)
    ... 13 more
Caused by: java.net.SocketException: Connection reset
    at java.base/sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:313)
    at java.base/sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:340)
    at java.base/sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:789)
    at java.base/java.net.Socket$SocketInputStream.read(Socket.java:1025)
    at java.base/java.io.BufferedInputStream.fill(BufferedInputStream.java:255)
    at java.base/java.io.BufferedInputStream.implRead(BufferedInputStream.java:289)
    at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:276)
    at java.base/java.io.DataInputStream.readByte(DataInputStream.java:271)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:229)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
    at java.base/java.lang.reflect.Method.invoke(Method.java:578)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:111)
    ... 15 more
java.lang.reflect.InvocationTargetException
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:116)
    at java.base/java.lang.reflect.Method.invoke(Method.java:578)
    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1081)
Caused by: java.lang.NullPointerException: Cannot invoke "java.lang.Class.getMethod(String, java.lang.Class[])" because "<local6>" is null
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:459)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:364)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
    ... 2 more

Just a minor irritation, but I thought I'd report it. I've seen it with multiple apps and on previous versions of B4j. It just feels like it's more regular now.

I am running on a different PC, so it could be something to do with that.

 

[peacemaker]

B4J Jackcess Problem - Works from UI but gets ExceptionInInitializerError when run as Standalone .EXE file

I'd be grateful for help with this issue. I'm using Jackcess to read a .MDB database in B4J on a Windows 10 PC (64-b20H2 with Java JDK11.0.1 and Java 8 Update 271) The program works perfectly when run from the B4J UI (in either debug or release mode) provided I include a "#AdditionalJar...

www.b4x.com

related maybe ?

 

[stevel05]

Thanks, but I don't think so. The app doesn't start running as the debugger doesn't connect.

 

[Erel]

I don't remember encountering such error. OpenJDK 19?

 

[stevel05]

OpenJDK 19?

Yes

 

[stevel05]

I think this may have been to do with a low powered PC. I have been running temporarily on an Nipogi with an N95 processor (4 cores 4 threads). It wasn't fast, but coped with most things well. Not sure why it didn't like this it could even have been an incompatible driver, but it's here if anyone else sees a similar message. Anyway I've replaced that with a Ryzen7 PC and all is well. Haven't seen the message again.