Q:

getClass().getProtectionDomain().getCodeSource().getLocation().getPath() Throw a null pointer exception

I used this line of code in a Java class to retrieve a URI which i used to customize the ClassLoader:
String uri = getClass().getProtectionDomain().getCodeSource().getLocation().getPath();

Now the same line of code in an Android App in the MainActivity to be exact throw a null pointer exception.
Is there something special for Android development ?
Thanks.

A:

getProtectionDomain() is not implemented in Android's version of Java
http://developer.android.com/reference/java/lang/Class.html#getProtectionDomain%28%29
Also, the ProtectionDomain class is marked as "Legacy security code; do not use."
http://developer.android.com/reference/java/security/ProtectionDomain.html
I assume this only exists in Android Java to maintain compilation compatibility.

