Conflicting Plugins Follow

Hello,

I am developing language support plugin for Google Protobuf, and I have an issue with other plugin that provides similar functionality.

When user opens a proto file, IntelliJ IDEA suggests to install two plugins, and many users install both. They provide very similar functionality (same file type - syntax highlighting, annotators, etc), so when user opens proto file, only one plugin is used (actually, it is more like "undefined behavior").

I want to show a dialog to user with a suggestion to disable other plugins.

Question: is there any way to detect other plugins that provide support for the same language? 

I already tried to use PluginManager.getPlugins() and Language.getRegisteredLanguages(). I can find Language instance that provides support for same file extension that my plugin, but I cannot find a way to match language instance to plugin.

IdeaPluginDescriptor[] plugins = PluginManager.getPlugins();
Collection<Language> languages = Language.getRegisteredLanguages();
for (Language language : languages) {
    LanguageFileType associatedFileType = language.getAssociatedFileType();
    if (associatedFileType != null) {
        String extension = associatedFileType.getDefaultExtension();
        if (ProtoFileType.FILE_EXTENSION.equals(extension)) {
            LOGGER.warn("Detected plugin for *.proto files: " + language );
            // *******
            // How to match language to plugin?
        }
    }
}