When using the -pipemap flag, there is always an "No diagram found" error on stderr and the exit code is 100. Using the example here: https://forum.plantuml.net/5037/please-provide-command-line-option-generate-png-map-data-html
8:56 $ cat foo.puml | java -jar plantuml.jar -pipemap
Picked up JAVA_TOOL_OPTIONS: -Xmx500m
<map id="plantuml_map" name="plantuml_map">
<area shape="rect" id="id1" href="http://plantuml.com" title="http://plantuml.com" alt="" coords="1,8,88,44"/>
</map>
No diagram found
8:56 $ echo $?
100
This exact command worked in 2018.10, but is broken in 2019.1 and 2019.7.
