Skip to content

Application simply not doing anything #453

New issue
New issue
Open
Open
Application simply not doing anything#453

Description

@Ninesideddevelopment
Ninesideddevelopment
opened on Jun 25, 2024

I'm on windows 11 and I'm using JD-GUI 1.6.6. I have tried the windows exe and the .jar file, but neither worked. I selected the .class file I wanted to decompile, but nothing actually happened. No errors, no signs of the application doing anything. I'm not sure what to do.

Activity

  1. smfukaya commented on Aug 23, 2024

    @smfukaya
    smfukaya
    on Aug 23, 2024

    Check #448 (comment)

  2. rkdevs commented on Aug 20, 2025

    @rkdevs
    rkdevs
    on Aug 20, 2025

    Check #448 (comment)

    I am having the same issue as OP in 2025 and referenced your comment @smfukaya, however the resolution posted in the linked comment is not working for me. For Win 10/11 and JD-GUI v.1.6.6, I am seeing the following exception:

    Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Unsupported class file major version 59 at org.b.a.e.<init>(Unknown Source) at org.b.a.e.<init>(Unknown Source) at org.b.a.e.<init>(Unknown Source) at org.b.a.e.<init>(Unknown Source) at org.jd.gui.service.fileloader.ClassFileLoaderProvider.load(Unknown Source) at org.jd.gui.service.uriloader.FileUriLoaderProvider.load(Unknown Source) at org.jd.gui.a.c.openURI(Unknown Source) at org.jd.gui.a.c.b(Unknown Source) at org.jd.gui.a.c.b(Unknown Source) at org.jd.gui.a.c.w(Unknown Source) at org.jd.gui.c.i.b.actionPerformed(Unknown Source) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Window.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.awt.EventQueue.access$500(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue$4.run(Unknown Source) at java.awt.EventQueue$4.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source)

    I seeing this exception when using the bat file to start & use JD-GUI on windows.

    "JAVA_NEWER_HOME\bin\java.exe" -Djava.util.Arrays.useLegacyMergeSort=true -jar "PATH_TO_JD\jd-gui.exe"

    Where the JAVA_HOME versions I've tried are jdk1.8.0_202 and jdk-12.0.2 so far, resulting in the above exception. Has anyone been able to run and use JD-GUI v1.6.6 on windows recently?

    Note: I downloaded the .zip file from jd-gui-windows-1.6.6.zip

    Thanks!

  3. StevenJack666 commented on Aug 20, 2025

    @StevenJack666
    StevenJack666
    on Aug 20, 2025 via email

  4. Boat2017 commented on Aug 20, 2025

    @Boat2017
    Boat2017
    on Aug 20, 2025 via email

  5. smfukaya commented on Aug 21, 2025

    @smfukaya
    smfukaya
    on Aug 21, 2025

    Check #448 (comment)

    I am having the same issue as OP in 2025 and referenced your comment @smfukaya, however the resolution posted in the linked comment is not working for me. For Win 10/11 and JD-GUI v.1.6.6, I am seeing the following exception:

    Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Unsupported class file major version 59 at org.b.a.e.<init>(Unknown Source) at org.b.a.e.<init>(Unknown Source) at org.b.a.e.<init>(Unknown Source) at org.b.a.e.<init>(Unknown Source) at org.jd.gui.service.fileloader.ClassFileLoaderProvider.load(Unknown Source) at org.jd.gui.service.uriloader.FileUriLoaderProvider.load(Unknown Source) at org.jd.gui.a.c.openURI(Unknown Source) at org.jd.gui.a.c.b(Unknown Source) at org.jd.gui.a.c.b(Unknown Source) at org.jd.gui.a.c.w(Unknown Source) at org.jd.gui.c.i.b.actionPerformed(Unknown Source) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Window.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.awt.EventQueue.access$500(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue$4.run(Unknown Source) at java.awt.EventQueue$4.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source)

    I seeing this exception when using the bat file to start & use JD-GUI on windows.

    "JAVA_NEWER_HOME\bin\java.exe" -Djava.util.Arrays.useLegacyMergeSort=true -jar "PATH_TO_JD\jd-gui.exe"

    Where the JAVA_HOME versions I've tried are jdk1.8.0_202 and jdk-12.0.2 so far, resulting in the above exception. Has anyone been able to run and use JD-GUI v1.6.6 on windows recently?

    Note: I downloaded the .zip file from jd-gui-windows-1.6.6.zip

    Thanks!

    Hi @rkdevs,

    My #448 (comment) fixes the Open File Dialog (without it, it won't list any files of your system) and file drag n' drop.

    If your Open File Dialog is working and you are getting the error Unsupported class file major version 59 after you select the class or JAR file, it is because the target file was compiled with Java 15 (check major versions) but you are running jd with a lower JVM version (8 or 12).

    Use JVM 15 to run jd and try to open the target file again.

    Best.

  6. rkdevs commented on Aug 22, 2025

    @rkdevs
    rkdevs
    on Aug 22, 2025

    Hi @rkdevs,

    My #448 (comment) fixes the Open File Dialog (without it, it won't list any files of your system) and file drag n' drop.

    If your Open File Dialog is working and you are getting the error Unsupported class file major version 59 after you select the class or JAR file, it is because the target file was compiled with Java 15 (check major versions) but you are running jd with a lower JVM version (8 or 12).

    Use JVM 15 to run jd and try to open the target file again.

    Best.

    Hi @smfukaya,

    Appreciate your response on trying to provide a solution for the issue I posted about. I tried using Java 15, as you suggested, and am still running into the same issue. I wonder if any more config changes are needed for JD-GUI to function. I even tried using another .class file but the same error message is returning in the cmd window while running the batch file.

    I tried using JDK 15 as:
    C:\Program Files\Java\jdk-15\bin\java.exe" -Djava.util.Arrays.useLegacyMergeSort=true -jar "D:\Downloads\jd-gui-windows-1.6.6\jd-gui.exe

    Thanks!

  7. smfukaya commented on Aug 23, 2025

    @smfukaya
    smfukaya
    on Aug 23, 2025

    Hi @rkdevs,

    Make sure that jd-gui.exe is using the JDK you specified. Open cmd.exe run the following command and check if the CommandLine matches '"C:\Program Files\Java\jdk-15\bin\java.exe" -Djava.util.Arrays.useLegacyMergeSort=true -jar "D:\Downloads\jd-gui-windows-1.6.6\jd-gui.exe"':

    wmic process where caption="java.exe" get commandline,processid

    Best

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions