SSLルート証明書

MainActivity.java

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        TextView textView = (TextView) findViewById(R.id.textView);

        String trustStorePath = System.getProperty("javax.net.ssl.trustStore");

        textView.setText(trustStorePath != null ? trustStorePath : "null");
    }

}