java.io.File.isFile C# (CSharp) Method

        public virtual bool isFile()
        {
            global::net.sf.jni4net.jni.JNIEnv @__env = this.Env;
            using(new global::net.sf.jni4net.jni.LocalFrame(@__env, 10)){
            return ((bool)(@__env.CallBooleanMethod(this, global::java.io.File.j4n_isFile24)));
            }
        }

        public void TestTikaAutodetect()
        {
            Tika tika = new Tika();
            File xpsFile = new File("samples\\test1.xps");
		    if (!xpsFile.isFile())
			    throw new Exception(xpsFile.getName() + " does not exists.");

            using (InputStream inputStream = new FileInputStream(xpsFile))
            {
                Metadata metadata = new Metadata();

                string mimeType = tika.detect(inputStream, metadata);
                Assert.AreEqual("application/x-tika-ooxml", mimeType);

                inputStream.close();
            }
        }