Should any accomodation be made for trimming trailing whitespace in config sources like properties files?

[scottkurz]

Description

With Java source of:

@Inject
@ConfigProperty(name = "flag")
private boolean flag;

and an entry with a trailing space in src/main/resources/META-INF/microprofile-config.properties like:

flag=true<space>

I was surprised to see the boolean false value injected, .. until I noticed the space.

Though I can appreciate how this could be considered user error, since in general, IIUC, trailing whitespace is significant when loading properties files in Java, it still seemed worth raising in case anyone had any opinion that this should be treated specially in MP Config, for this particular source or perhaps other sources too?

(I did open an issue on the tooling project here to display a warning:
eclipse/lsp4mp#128 (comment) )

Versions:

MP Config v1.4
v20.0.0.12 - Open Liberty

[Emily-Jiang]

I think both preceeding space and tailing spaces can be trimed.