[Java] Swap Oracle Java 11 for OpenJDK Java 11 in Travis script.
[Java] Swap Oracle Java 11 for OpenJDK Java 11 in Travis script.

mikeb01/Aeron,EvilMcJerkface/Aeron,mikeb01/Aeron,EvilMcJerkface/Aeron,mikeb01/Aeron,real-logic/Aeron,mikeb01/Aeron,EvilMcJerkface/Aeron,galderz/Aeron,real-logic/Aeron,galderz/Aeron,real-logic/Aeron,EvilMcJerkface/Aeron,real-logic/Aeron,galderz/Aeron,galderz/Aeron