How can I force to work option "binarry class files" in IDEA GUI Designer settings?

Asked Jun 10 '22 at 15:28

Active Jun 10 '22 at 15:36

Viewed 16 times

I have a problem with running my GUI application, when I run my jar file. I get exception:

Exception in thread "main" java.awt.IllegalComponentStateException: contentPane cannot be set to null.
    at java.desktop/javax.swing.JRootPane.setContentPane(JRootPane.java:594)
    at java.desktop/javax.swing.JDialog.setContentPane(JDialog.java:1036)
    at ui.ConnectToServerDialog.<init>(ConnectToServerDialog.java:22)
    at common.Client.main(Client.java:14)

This is the rather common mistake. I read solutions, but everyone writes: "choice java source code option", but it's uncomfortable for me, it fouls my code. I talk about this settings page in IDEA: gui designer settings screenshoot

So, how can I fix the "binary class files option"? I create the dialog using Swing UI Designer in IDEA

edited Jun 10 '22 at 15:36

asked Jun 10 '22 at 15:28

David Blbulyan

How do you compile/build the jar file? Do you use Maven/Gradle? – CrazyCoder Jun 10 '22 at 15:34
I use maven, it's maven project in intellij-idea – David Blbulyan Jun 10 '22 at 15:37
Please see https://youtrack.jetbrains.com/issue/IDEA-151118/Offical-maven-plugin-for-IntelliJ-GUI-Designer. – CrazyCoder Jun 10 '22 at 15:38
I also added a dependency in my pom.xml: com.intellij forms_rt 7.0.3 – David Blbulyan Jun 10 '22 at 15:39
I added com.jetbrains.intellij.java:java-gui-forms-rt like dependency from repository https://www.jetbrains.com/intellij-repository/releases but it din't fix my problem – David Blbulyan Jun 10 '22 at 16:17
Dependency is not enough, you need to use a plug-in with javac2 goal to build the forms, see https://stackoverflow.com/a/69258838/104891. – CrazyCoder Jun 10 '22 at 16:20

How can I force to work option "binarry class files" in IDEA GUI Designer settings?

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