Exception when using gdal.jar

[AarjavP]

This might just be a setup issue but I'm not sure.
I am getting exception

java.lang.UnsatisfiedLinkError: org.gdal.ogr.ogrJNI.DataSource_SWIGUpcast(J)J
	at org.gdal.ogr.ogrJNI.DataSource_SWIGUpcast(Native Method)
	at org.gdal.ogr.DataSource.<init>(DataSource.java:18)
	at org.gdal.ogr.ogr.Open(ogr.java:212)

However I am able to call ogr.RegisterAll() and ogr.GetDriverCount() just fine without any exceptions. I have added the GDAL directory to PATH, as well as set GDAL_DATA, GDAL_DRIVER_PATH, and PROJ_LIB.
Do I need to include something for SWIG? I have downloaded SWIG 2.0.12 but don't see how to/if i need to install it for this.

I am using http://www.gisinternals.com/packageinfo.php?file=release-1800-x64-gdal-2-2-1-mapserver-7-0-6.zip

Thanks