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java.lang.NoClassDefFoundError: javax.swing.UIManager	at java.lang.Class.initializeClass(libgcj.so.14)	at javax.swing.UIManager.getUI(libgcj.so.14)	at javax.swing.text.JTextComponent.updateUI(libgcj.so.14)	at javax.swing.text.JTextComponent.(libgcj.so.14)	at javax.swing.JEditorPane.(libgcj.so.14)	at javax.swing.JTextPane.(libgcj.so.14)	at com.intellij.idea.Main.showMessage(Main.java:336)	at com.intellij.idea.Main.showMessage(Main.java:312)	at com.intellij.idea.Main.showMessage(Main.java:291)	at com.intellij.idea.Main.main(Main.java:106)