Prevent Script Editor title deadlocks

Queue title updates and title calculation on the EDT. Avoid holding the
TextEditor monitor while Frame.setTitle fires Swing property changes,
preventing lock inversion with the AWT tree lock during window closure.

Add a regression test confirming setTitle(String) is not synchronized.

Co-authored-by: Copilot <copilot@github.com>

Author: hinerm

src/main/java/org/scijava/ui/swing/script/TextEditor.java

@@ -2590,14 +2590,13 @@ public void setEditorPaneFileName(final File file) {
 	}
 
 	void setTitle() {
-		final EditorPane editorPane = getEditorPane();
-
-		final boolean fileChanged = editorPane.fileChanged();
-		final String fileName = editorPane.getFileName();
-		final String title =
-			(fileChanged ? "*" : "") + fileName +
-				(executingTasks.isEmpty() ? "" : " (Running)");
 		SwingUtilities.invokeLater(() -> {
+			final EditorPane editorPane = getEditorPane();
+			final boolean fileChanged = editorPane.fileChanged();
+			final String fileName = editorPane.getFileName();
+			final String title =
+				(fileChanged ? "*" : "") + fileName +
+					(executingTasks.isEmpty() ? "" : " (Running)");
 			setTitle(title); // to the main window
 			// Update all tabs: could have changed
 			for (int i = 0; i < tabbed.getTabCount(); i++)
@@ -2607,7 +2606,11 @@ void setTitle() {
 	}
 
 	@Override
-	public synchronized void setTitle(final String title) {
+	public void setTitle(final String title) {
+		if (!SwingUtilities.isEventDispatchThread()) {
+			SwingUtilities.invokeLater(() -> setTitle(title));
+			return;
+		}
 		super.setTitle(title);
 		final int index = tabsMenuTabsStart + tabbed.getSelectedIndex();
 		if (index < tabsMenu.getItemCount()) {

src/test/java/org/scijava/ui/swing/script/TextEditorThreadOwnershipTest.java

@@ -34,6 +34,7 @@
 import static org.junit.Assert.assertSame;
 import static org.junit.Assert.assertTrue;
 
+import java.lang.reflect.Modifier;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
@@ -61,6 +62,12 @@ public void tearDown() {
 		context.dispose();
 	}
 
+	@Test
+	public void testTitleSetterDoesNotSynchronizeOnEditor() throws Exception {
+		assertFalse(Modifier.isSynchronized(TextEditor.class.getMethod("setTitle",
+			String.class).getModifiers()));
+	}
+
 	@Test
 	public void testOrdinaryChildThreadBelongsToRun() {
 		final ThreadGroup runGroup = new ThreadGroup("script-run");