[thwaller]

has something todo with keystore access (https/ssl)
Try something like: https://stackoverflow.com/a/50103533

I had mentioned prior to hold on some of the comments I made in reference to Java errors. I have done more trials and found that Java 8:

openjdk version "1.8.0_191"
OpenJDK Runtime Environment (build 1.8.0_191-8u191-b12-2ubuntu0.18.04.1-b12)
OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode)

is the only one I got to work. Using OpenJDK 11 I am still getting the block characters as I reported prior. I tried using Oracle's Java 11 and that led to even more problems, as seen the the report that your above quoted comment was in reply to.

I am ok at this time just sticking with Java 8, but I do see an issue with that as a solution. If each developer of a Java program requires/wants its users to be on a specific version and flavor of Java, the advantage of Java being cross platform is almost negated as users will end up needing to install multiple versions of Java to support each of their Java driven applications. While I can appreciate a response I got earlier that the earlier version of Java is more mature, I can also appreciate the concept that people are using the current versions, which at this time is Java 11/12. I myself have complained to developers that I cannot install a package because its dependencies are no longer current, often requiring packages that were last used on the 14 or 16 LTS Ubuntu releases.

So with an understanding of both sides, what approach is tMM taking, or going to take? Since Java 11 is the current LTS release half a year in, we should be at a fairly finalized and stable version as it is intended to be released.