B4J Question [abmaterial] about https[solved]

liulifeng77 · Jan 9, 2019

hi,
I download my free ssl certificate(file name :sz.jks).
when run the project, it show error m-(RuntimeException) java.lang.RuntimeException: ALPN is not configured properly (required by HTTP2)
any suggestion will be appreciated!

Erel · Jan 9, 2019

Are you using Java 9+ ?

https://www.b4x.com/android/forum/threads/server-conscrypt-and-http-2.93040/#content

liulifeng77 · Jan 9, 2019

my java version:C:\Program Files\Java\jdk1.8.0_111\bin\javac.exe
add: update to java 9 .
the same error. any more suggestions? thanks a lot!

Joan Paz · Jan 10, 2019

Did you add the alpn file? like this in the top of the main:

B4X:

#VirtualMachineArgs: -Xbootclasspath/p:alpn-boot-8.1.11.v20170118.jar

If yes, check the version here:

https://www.eclipse.org/jetty/documentation/9.4.x/alpn-chapter.html

Hope help

Erel · Jan 10, 2019

Joan Paz said:
Did you add the alpn file? like this in the top of the main:

Not needed. Just use Java 9+.

liulifeng77 · Jan 10, 2019

use java9+ and update b4j(ide) to 7

B4J Question [abmaterial] about https[solved]

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