| Agreed, but Linux rejects it and OSX does not (!). 
 
 Linux: $ ping 1271.1.2.3 ping: 1271.1.2.3 Name or service not known. 
 
 
 OSX: $ ping 1271.1.2.3 PING 1271.1.2.3 (92.242.140.21): 56 data bytes Request timeout for icmp_seq 0 Request timeout for icmp_seq 1 Request timeout for icmp_seq 2 
 (etc.) 
 
 
 Valid syntax, but not a valid address. Russell Gold wrote on 3/24/20 8:29 PM: Turns out to have nothing to do with ALPN - Linux says 1271.1.2.3 is not a valid IP address; OSX thinks it is - so a unit test that passes on Linux fails on OSX
 
 On Mar 24, 2020, at 5:28 PM, Steve Millidge (Payara) <steve.millidge@xxxxxxxxxxx> wrote:
  I haven't seen the error message referred to so not sure of the context.
  However to get ALPN to work generally you need to add the appropriate grizzly-alpn jar to the bootclasspath of the server. Which version depends on the exact JDK build number you're on.
  Steve
  -----Original Message----- From: glassfish-dev-bounces@xxxxxxxxxxx <glassfish-dev-bounces@xxxxxxxxxxx> On Behalf Of Russell Gold Sent: 24 March 2020 18:31 To: glassfish developer discussions <glassfish-dev@xxxxxxxxxxx> Subject: [glassfish-dev] "TLS ALPN (Application-Layer Protocol Negotiation) support is not available. HTTP/2 support will not be enabled" in Grizzly tests?
  What JDK do you need to get this to work? The latest JDK8 I can find is build 241
  Thanks, Russ _______________________________________________ glassfish-dev mailing list glassfish-dev@xxxxxxxxxxx To unsubscribe from this list, visit https://urldefense.com/v3/__https://www.eclipse.org/mailman/listinfo/glassfish-dev__;!!GqivPVa7Brio!NR8l5D1GjD8FMnrRqpRlGOZfWRJWGp4njPSiWxC6XX0xG2oQlbaXSNdasDaQ8nAnZQ$  _______________________________________________ glassfish-dev mailing list glassfish-dev@xxxxxxxxxxx To unsubscribe from this list, visit https://urldefense.com/v3/__https://www.eclipse.org/mailman/listinfo/glassfish-dev__;!!GqivPVa7Brio!NR8l5D1GjD8FMnrRqpRlGOZfWRJWGp4njPSiWxC6XX0xG2oQlbaXSNdasDaQ8nAnZQ$ 
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