void showResolveErrors(final String title) {
		if (errorBuf.length() > 0) {
			try {
				SwingUtilities.invokeAndWait(() -> {
					String msg = errorBuf.toString();
					clearResolveErrors();
					ReadTextDialog dialog = new ReadTextDialog(title, msg);
					PluginTool mergeTool = mergeManager.getMergeTool();
					mergeManager.getMergeTool().showDialog(dialog, mergeTool.getActiveWindow());
				});
			}
			catch (InterruptedException e) {
				throw new AssertException(e);
			}
			catch (InvocationTargetException e) {
				throw new AssertException(e);
			}
		}
	}
This is a generic method for displaying the contents of the error 
buffer to the user.
Ghidra/Features/Base/src/main/java/ghidra/app/merge/listing/AbstractFunctionMerger.java