private static @NotNull JComponent createCallSitesViewer(@NotNull Editor usageEditor, @NotNull Editor memberEditor) {
    Splitter splitter = new Splitter(true);
    JComponent usageComponent = getEditorComponent(usageEditor, JvmAnalysisBundle.message("propagated.from"));
    splitter.setFirstComponent(usageComponent);
    JComponent memberComponent = getEditorComponent(memberEditor, JvmAnalysisBundle.message("propagated.to"));
    splitter.setSecondComponent(memberComponent);
    splitter.setBorder(IdeBorderFactory.createRoundedBorder());
    return splitter;
  }
private static @NotNull JComponent createCallSitesViewer(@NotNull Editor usageEditor, @NotNull Editor memberEditor)