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java.lang.IllegalStateException: Attempt to mutate in notification at javax.swing.text.AbstractDocument.writeLock(AbstractDocument.java:1336) at javax.swing.text.DefaultStyledDocument.setCharacterAttributes(DefaultStyledDocument.java:338) at dbtool.TextPaneWithPopup.caretUpdate(TextPaneWithPopup.java:255) at javax.swing.text.JTextComponent.fireCaretUpdate(JTextComponent.java:336) at javax.swing.text.JTextComponent$MutableCaretEvent.fire(JTextComponent.java:3137) at javax.swing.text.JTextComponent$MutableCaretEvent.stateChanged(JTextComponent.java:3159) at javax.swing.text.DefaultCaret.fireStateChanged(DefaultCaret.java:638) at javax.swing.text.DefaultCaret.changeCaretPosition(DefaultCaret.java:1010) at javax.swing.text.DefaultCaret.handleSetDot(DefaultCaret.java:918) at javax.swing.text.DefaultCaret.setDot(DefaultCaret.java:899) at javax.swing.text.DefaultCaret$UpdateHandler.insertUpdate(DefaultCaret.java:1453) at javax.swing.text.AbstractDocument.fireInsertUpdate(AbstractDocument.java:184) at javax.swing.text.AbstractDocument.handleInsertString(AbstractDocument.java:749) at javax.swing.text.AbstractDocument.insertString(AbstractDocument.java:706) at javax.swing.JTextPane.replaceSelection(JTextPane.java:189) at javax.swing.JTextPane.replaceSelection(JTextPane.java:153) at javax.swing.text.DefaultEditorKit$DefaultKeyTypedAction.actionPerformed(DefaultEditorKit.java:839) at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1512) at javax.swing.JComponent.processKeyBinding(JComponent.java:2435) at javax.swing.JComponent.processKeyBindings(JComponent.java:2470) at javax.swing.JComponent.processKeyEvent(JComponent.java:2398) at java.awt.Component.processEvent(Component.java:4943) at java.awt.Container.processEvent(Container.java:1566) at java.awt.Component.dispatchEventImpl(Component.java:3639) at java.awt.Container.dispatchEventImpl(Container.java:1623) at java.awt.Component.dispatchEvent(Component.java:3480) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1688) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:593) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:765) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:698) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:559) at java.awt.Component.dispatchEventImpl(Component.java:3509) at java.awt.Container.dispatchEventImpl(Container.java:1623) at java.awt.Window.dispatchEventImpl(Window.java:1590) at java.awt.Component.dispatchEvent(Component.java:3480) at java.awt.EventQueue.dispatchEvent(EventQueue.java:450) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:197) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136) at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)