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java.lang.IllegalStateException: Attempt to mutate in notification at javax.swing.text.AbstractDocument.writeLock(AbstractDocument.java:1343) at javax.swing.text.AbstractDocument.replace(AbstractDocument.java:662) at javax.swing.text.JTextComponent.setText(JTextComponent.java:1441) at javax.swing.JFormattedTextField$AbstractFormatter.install(JFormattedTextField.java:925) at javax.swing.text.DefaultFormatter.install(DefaultFormatter.java:105) at javax.swing.text.InternationalFormatter.install(InternationalFormatter.java:268) at javax.swing.JFormattedTextField.setFormatter(JFormattedTextField.java:443) at javax.swing.JFormattedTextField.setValue(JFormattedTextField.java:767) at javax.swing.JFormattedTextField.setValue(JFormattedTextField.java:480) at javax.swing.JSpinner$DefaultEditor.stateChanged(JSpinner.java:696) at javax.swing.JSpinner.fireStateChanged(JSpinner.java:426) at javax.swing.JSpinner$ModelListener.stateChanged(JSpinner.java:353) at javax.swing.AbstractSpinnerModel.fireStateChanged(AbstractSpinnerModel.java:102) at javax.swing.SpinnerNumberModel.setValue(SpinnerNumberModel.java:430) at com.core.java_ui.pagesetup.OptionsTab$SpinnerDocumentListener.updateSpinner(OptionsTab.java:294) at com.core.java_ui.pagesetup.OptionsTab$SpinnerDocumentListener.insertUpdate(OptionsTab.java:258) at javax.swing.text.AbstractDocument.fireInsertUpdate(AbstractDocument.java:184) at javax.swing.text.AbstractDocument.handleInsertString(AbstractDocument.java:754) at javax.swing.text.AbstractDocument.insertString(AbstractDocument.java:711) at javax.swing.text.PlainDocument.insertString(PlainDocument.java:114) at javax.swing.text.AbstractDocument.replace(AbstractDocument.java:673) at javax.swing.text.JTextComponent.setText(JTextComponent.java:1441) at javax.swing.JFormattedTextField$AbstractFormatter.install(JFormattedTextField.java:925) at javax.swing.text.DefaultFormatter.install(DefaultFormatter.java:105) at javax.swing.text.InternationalFormatter.install(InternationalFormatter.java:268) at javax.swing.JFormattedTextField.setFormatter(JFormattedTextField.java:443) at javax.swing.JFormattedTextField.setValue(JFormattedTextField.java:767) at javax.swing.JFormattedTextField.processFocusEvent(JFormattedTextField.java:614) at java.awt.Component.processEvent(Component.java:5244) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1810) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:827) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:478) at java.awt.Component.dispatchEventImpl(Component.java:3841) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)