Ошибка при создании объекта jide

[d0nil]

Я только добавил строку

JideTabbedPane panTab = new JideTabbedPane();

в мой код, после запуска ошибки:

Exception in thread "main" java.lang.ExceptionInInitializerErr or
at com.jidesoft.plaf.LookAndFeelFactor y.installJideExtension(Unknown Source)
at com.jidesoft.plaf.LookAndFeelFactor y.installJideExtension(Unknown Source)
at com.jidesoft.plaf.LookAndFeelFactor y.installJideExtension(Unknown Source)
at com.jidesoft.swing.JideTabbedPane.u pdateUI(Unknown Source)
at java.desktop/javax.swing.JTabbedPane.<init>(JTab bedPane.java:231)
at com.jidesoft.swing.JideTabbedPane.< init>(Unknown Source)
at com.jidesoft.swing.JideTabbedPane.< init>(Unknown Source)
at window.<init>(window.java:55)
at key.main(key.java:3)
Caused by: java.lang.SecurityException: class "AbstractDemo"'s signer information does not match signer information of other classes in the same package
at java.base/java.lang.ClassLoader.checkCerts(Cl assLoader.java:1150)
at java.base/java.lang.ClassLoader.preDefineClas s(ClassLoader.java:905)
at java.base/java.lang.ClassLoader.defineClass(C lassLoader.java:1014)
at java.base/java.security.SecureClassLoader.def ineClass(SecureClassLoader.java:151 )
at java.base/jdk.internal.loader.BuiltinClassLoa der.defineClass(BuiltinClassLoader. java:821)
at java.base/jdk.internal.loader.BuiltinClassLoa der.findClassOnClassPathOrNull(Buil tinClassLoader.java:719)
at java.base/jdk.internal.loader.BuiltinClassLoa der.loadClassOrNull(BuiltinClassLoa der.java:642)
at java.base/jdk.internal.loader.BuiltinClassLoa der.loadClass(BuiltinClassLoader.ja va:600)
at java.base/jdk.internal.loader.ClassLoaders$Ap pClassLoader.loadClass(ClassLoaders .java:178)
at java.base/java.lang.ClassLoader.loadClass(Cla ssLoader.java:521)
at com.jidesoft.plaf.basic.BasicLookAn dFeelExtension.<clinit>(Unknown Source)
... 9 more

(Я подключал библиотеку jide_demo.jar к проекту)

[d0nil]

import com.jidesoft.swing.JideTabbedPane;
import javax.swing.*;

public class key {
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        JideTabbedPane tabPane = new JideTabbedPane();

        frame.setVisible(true);
    }
}

[Black Fregat]

Вы основную ошибку-то увидели?

Сообщение от d0nil

class "AbstractDemo"'s signer information does not match signer information of other classes in the same package

Разбирайтесь с подписями проекта