Launching QuPath from within Fiji... sort of (it only partly works)

Launch_QuPath_from_Fiji.groovy

// Change this to reflect the path to QuPath!
// Here, I'm using a Mac.
// Note: I copied all native libraries (*.dylib, *.jnilib) into Fiji.app/lib/macos so that they could be found.
def pathQuPath = "/Users/pete/Desktop/QuPath.app/Contents/Java/"

// Get the Groovy classloader
def cl = this.class.classLoader

// Figure out where the main QuPath Jars are to be found
def dirBase = new File(pathQuPath)
def dirs = [new File(dirBase, "jars"), new File(dirBase, "qupath")]

// Add the most important QuPath Jars to the classpath, skipping ImageJ
cl.addURL(new File(dirBase, "QuPathApp.jar").toURL())
for (def dir in dirs) {
	for (def f in dir.listFiles()) {
		String name = f.getName()
	    if (f.isFile() && name.endsWith(".jar")) {
	    	if (!name.startsWith("ij"))
		        cl.addURL(f.toURL())
	    }
	}
}
cl.clearCache()
print(cl.getClassPath())

// Launch QuPath
def cls = Class.forName("qupath.QuPath").main(new String[0]);

// Install the ImageJ plugins (this doesn't work...)
ij.Menus.installPlugin("qupathj.QUPath_Send_ROI_to_QuPath", ij.Menus.PLUGINS_MENU, "Send ROI to QuPath", "", ij.IJ.getInstance());
ij.Menus.installPlugin("qupathj.QUPath_Send_Overlay_to_QuPath", ij.Menus.PLUGINS_MENU, "Send Overlay to QuPath", "", ij.IJ.getInstance());