Write access for node from JComponent leads to IDE exception

Hi,

back in this thread, I learned that, at least under MPS 3.3, the correct way to write nodes via a JComponent is using the "write action with" construct, i.e., if you have a CheckBox to set and unset a boolean property of your model, this is what was working for me in MPS 3.3:

Notice that the onSelected/onDeSelected are Runnable implementations to execute code provided by the DSL user.

After migrating this to MPS 3.4.2, I always get the following exception when I make use of this implementation (i.e. when I click a checkbox in one of my editors):

registered node can only be modified inside undoable command or in 'loading' model r:231388ef-0b07-4757-851b-2b1cb2c3e8b0(org.digitalEmber.sample.swing.sandbox)
jetbrains.mps.smodel.IllegalModelChangeError: registered node can only be modified inside undoable command or in 'loading' model r:231388ef-0b07-4757-851b-2b1cb2c3e8b0(org.digitalEmber.sample.swing.sandbox)
at jetbrains.mps.smodel.AttachedNodeOwner.assertLegalChange(AttachedNodeOwner.java:83)
at jetbrains.mps.smodel.SNode.assertCanChange(SNode.java:113)
at jetbrains.mps.smodel.SNode.insertChildBefore(SNode.java:759)
at jetbrains.mps.smodel.SNode.addChild(SNode.java:807)
at jetbrains.mps.lang.smodel.generator.smodelAdapter.AbstractSNodeList$ChildrenSNodesList.doAddReference(AbstractSNodeList.java:163)
at jetbrains.mps.lang.smodel.generator.smodelAdapter.AbstractSNodeList.addReference(AbstractSNodeList.java:38)
at jetbrains.mps.lang.smodel.generator.smodelAdapter.AbstractSNodeList.add(AbstractSNodeList.java:140)
at jetbrains.mps.lang.smodel.generator.smodelAdapter.AbstractSNodeList$ChildrenSNodesList.add(AbstractSNodeList.java:150)
at jetbrains.mps.internal.collections.runtime.AbstractCollectionSequence.addElement(AbstractCollectionSequence.java:20)
at jetbrains.mps.lang.smodel.generator.smodelAdapter.AttributeOperations.addAttribute(AttributeOperations.java:56)
at jetbrains.mps.lang.smodel.generator.smodelAdapter.AttributeOperations$AttributeList.doAddReference(AttributeOperations.java:273)
at jetbrains.mps.lang.smodel.generator.smodelAdapter.AbstractSNodeList.addReference(AbstractSNodeList.java:38)
at jetbrains.mps.lang.smodel.generator.smodelAdapter.AbstractSNodeList.add(AbstractSNodeList.java:140)
at jetbrains.mps.lang.smodel.generator.smodelAdapter.AttributeOperations$AttributeList.add(AttributeOperations.java:261)
at jetbrains.mps.lang.smodel.generator.smodelAdapter.AbstractSNodeList.add(AbstractSNodeList.java:13)
at jetbrains.mps.internal.collections.runtime.AbstractCollectionSequence.addElement(AbstractCollectionSequence.java:20)
at org.digitalEmber.mps.swing.runtime.rtModel.CheckBox$1$1.run(CheckBox.java:45)
at jetbrains.mps.smodel.WriteActionDispatcher.run(WriteActionDispatcher.java:39)
at jetbrains.mps.smodel.WorkbenchModelAccess$3.run(WorkbenchModelAccess.java:136)
at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:898)
at jetbrains.mps.smodel.WorkbenchModelAccess.runWriteAction(WorkbenchModelAccess.java:145)
at jetbrains.mps.smodel.ModelAccessBase.runWriteAction(ModelAccessBase.java:63)
at org.digitalEmber.mps.swing.runtime.rtModel.CheckBox$1.actionPerformed(CheckBox.java:31)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.JToggleButton$ToggleButtonModel.setPressed(JToggleButton.java:308)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6535)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6300)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4891)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2750)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:795)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:627)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:387)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Is there a new way to get write access?

Thanks!