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java.lang.NullPointerException: 	at sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1264)	at sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:219)	at sun.awt.FontConfiguration.init(FontConfiguration.java:107)	at sun.awt.X11FontManager.createFontConfiguration(X11FontManager.java:753)	at sun.font.SunFontManager$2.run(SunFontManager.java:431)	at java.security.AccessController.doPrivileged(Native Method)	at sun.font.SunFontManager.(SunFontManager.java:376)	at sun.awt.X11FontManager.(X11FontManager.java:32)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)	at java.lang.Class.newInstance(Class.java:379)	at sun.font.FontManagerFactory$1.run(FontManagerFactory.java:83)	at java.security.AccessController.doPrivileged(Native Method)	at sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:74)	at sun.font.SunFontManager.getInstance(SunFontManager.java:250)	at sun.font.FontDesignMetrics.getMetrics(FontDesignMetrics.java:264)	at sun.swing.SwingUtilities2.getFontMetrics(SwingUtilities2.java:1018)	at javax.swing.JComponent.getFontMetrics(JComponent.java:1615)	at javax.swing.text.WrappedPlainView.updateMetrics(WrappedPlainView.java:318)	at javax.swing.text.WrappedPlainView.updateChildren(WrappedPlainView.java:297)	at javax.swing.text.WrappedPlainView.insertUpdate(WrappedPlainView.java:463)	at javax.swing.plaf.basic.BasicTextUI$RootView.insertUpdate(BasicTextUI.java:1602)	at javax.swing.plaf.basic.BasicTextUI$UpdateHandler.insertUpdate(BasicTextUI.java:1861)	at javax.swing.text.AbstractDocument.fireInsertUpdate(AbstractDocument.java:202)	at javax.swing.text.AbstractDocument.handleInsertString(AbstractDocument.java:749)	at javax.swing.text.AbstractDocument.insertString(AbstractDocument.java:708)	at javax.swing.text.PlainDocument.insertString(PlainDocument.java:130)	at javax.swing.text.DefaultEditorKit.read(DefaultEditorKit.java:273)	at javax.swing.JEditorPane.setText(JEditorPane.java:1413)	at javax.swing.JEditorPane.(JEditorPane.java:291)	at com.install4j.runtime.installer.frontend.headless.AbstractHeadlessScreenExecutor.init(Unknown Source)	at com.install4j.runtime.installer.frontend.headless.ConsoleScreenExecutor.(Unknown Source)	at com.install4j.runtime.installer.frontend.headless.InstallerConsoleScreenExecutor.(Unknown Source)	at com.install4j.runtime.installer.Installer.getScreenExecutor(Unknown Source)	at com.install4j.runtime.installer.Installer.runInProcess(Unknown Source)	at com.install4j.runtime.installer.Installer.main(Unknown Source)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)	at com.install4j.runtime.launcher.Launcher.main(Unknown Source)