Launcher turns blank when launching with Verify JAR files option

[VillePekka]

Thank you for making this software!

I noticed a behaviour that when starting Ballista and opening connection to locally running OIE with Java Home defined and Verify JAR files option checked the window turns blank. Below are screenshots of the behaviour.

I'm running Ubuntu 24.04.3 LTS.
I compiled Ballista from source.
SDK is handled by https://sdkman.io/:
sdk current returns

Current versions in use:
java 21.0.9.fx-zulu

Screenshot of before clicking Open:

Screenshot after clicking open:

Below is partial log from terminal from where I started Ballista I. The "..." is where I have removed a list of several jar files.

Partial log

found 0 trusted certificates
probing and setting OpenSSL environment variables
libEGL warning: egl: failed to create dri2 screen
libEGL warning: DRI2: failed to create screen
MESA: error: ZINK: failed to choose pdev
libEGL warning: egl: failed to create dri2 screen
libEGL warning: DRI2: failed to create screen
libEGL warning: egl: failed to create dri2 screen
libEGL warning: DRI2: failed to create screen
MESA: error: ZINK: failed to choose pdev
libEGL warning: egl: failed to create dri2 screen
libEGL warning: DRI2: failed to create screen
["/home/vipera/.ballista/cache/localhost_8443/4.5.2/PDFRenderer.jar", "/home/vipera/.ballista/cache/localhost_8443/4.5.2/autocomplete-2.5.4.jar", "/home/vipera/.ballista/cache/localhost_8443/4.5.2/bcpkix-jdk18on-1.78.1.jar",
....
"/home/vipera/.ballista/cache/localhost_8443/4.5.2/zip4j_1.3.3.jar"]
{"msg":"/home/vipera/.ballista/cache/localhost_8443/4.5.2/PDFRenderer.jar is not signed","code":1}

When I uncheck the "Verify JAR files" option OIE seems to start correctly and the terminal shows the following log:

found 0 trusted certificates
probing and setting OpenSSL environment variables
libEGL warning: egl: failed to create dri2 screen
libEGL warning: DRI2: failed to create screen
MESA: error: ZINK: failed to choose pdev
libEGL warning: egl: failed to create dri2 screen
libEGL warning: DRI2: failed to create screen
libEGL warning: egl: failed to create dri2 screen
libEGL warning: DRI2: failed to create screen
MESA: error: ZINK: failed to choose pdev
libEGL warning: egl: failed to create dri2 screen
libEGL warning: DRI2: failed to create screen
^[[B^[[Busing java from: Some("/home/vipera/.sdkman/candidates/java/current/bin/java")
setting JDK_JAVA_OPTIONS environment variable with the java-vm-args given for version 1.9+ in JNLP file
NOTE: Picked up JDK_JAVA_OPTIONS: --add-modules=java.sql.rowset --add-exports=java.base/com.sun.crypto.provider=ALL-UNNAMED --add-exports=java.base/sun.security.provider=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.math=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.security.cert=ALL-UNNAMED --add-opens=java.base/java.text=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/sun.security.pkcs=ALL-UNNAMED --add-opens=java.base/sun.security.rsa=ALL-UNNAMED --add-opens=java.base/sun.security.x509=ALL-UNNAMED --add-opens=java.desktop/com.apple.eawt=ALL-UNNAMED --add-opens=java.desktop/com.apple.eio=ALL-UNNAMED --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/java.awt.color=ALL-UNNAMED --add-opens=java.desktop/java.awt.font=ALL-UNNAMED --add-opens=java.desktop/javax.swing=ALL-UNNAMED --add-opens=java.xml/com.sun.org.apache.xalan.internal.xsltc.trax=ALL-UNNAMED
WARNING: package com.apple.eawt not in java.desktop
WARNING: package com.apple.eio not in java.desktop

Do I seem to have a correct configuration to run Ballista?

[kayyagari]

@VillePekka could you set Java Home to 1.8 (with JavaFX) and try again please?.

[VillePekka]

@kayyagari I get the same behaviour when running with java 8.0.472.fx-zulu. Also same behaviour comes after I tried building the project with java 8.0.472.fx-zulu and try then to run it.

[kayyagari]

@VillePekka I have to test this on a Ubuntu machine, will let you know.

[VillePekka]

@kayyagari ok, thank you. Let me know if I can help somehow.
Below are are the screenshots of console logs.
I ran npm run tauri dev and clicked Open both with Verify JARs selected and unselected.

UI Blank after clicking Open (Verify JAR files was selected)

UI Visible after clicking open (Verify JAR files unselected)

I can get the UI elements back by right-clicking and selecting "Reload"

[VillePekka]

If I've understood correctly it seems like issue is that value of code is set to 1 here:

ballista/src-tauri/src/errors.rs

Line 20 in 5a0f639

obj.insert("code", Value::Number(Number::from(1)));

when in App.tsx not signed JAR is expected to be signaled with -1:

ballista/src/App.tsx

Line 181 in 5a0f639

if(result.code == -1) {

After changing in errors.rs the 1 to -1 and when trying to open with Verify JAR Files checked I receive an error notification about JAR being not signed and window doesn't go blank.