@Test
public void testWithNotGlowrootJar() throws Exception {

    thrown.expect(IOException.class);
    File glowrootJar = new File("x/classes");
    CodeSource codeSource = new CodeSource(glowrootJar.toURI().toURL(), new Certificate[0]);
    AgentPremain.getGlowrootJarFile(codeSource);
}