According to the information provided by the following link:
https://www.ibm.com/support/knowledgecenter/SSEQTP_liberty/com.ibm.websphere.wlp.doc/ae/cwlp_servlet40_http2.html
WAS Liberty supported HTTP/2 and Servlet 4.0 specification.
But, i can't find information for HTTP/2 support on WAS 9.0.5.x ND.
#Support#SupportMigration#WebSphereApplicationServer(WAS)