rzo1 commented on pull request #763:
URL: https://github.com/apache/tomee/pull/763#issuecomment-784267147
> @rzo1 yes, this enables for simple configuration to use some default as
override key (quite useful for hosts for example) but also to nested keys more
readably than with defaults - and was from the time defaults were not
supported) so `${${foo}.bar}` would evaluate foo.bar if foo is missing (else
.bar). Side note: if it helps, fork commons-lang3 code, openejb-core shoudln't
depend on it anyway and code is quite small -
https://github.com/apache/openwebbeans-meecrowave/blob/master/meecrowave-core/src/main/java/org/apache/meecrowave/lang/Substitutor.java.
Regression should be fixed now - at least, if I understood it correctly.
`openejb-core` has some more dependencies towards `lang3`
- org.apache.commons.lang3.StringUtils
- org.apache.commons.lang3.text.StrLookup;
- org.apache.commons.lang3.text.StrSubstitutor; (alternative: Substitutor
from `text` - might be worth replacing it as it is deprecated...)
- org.apache.commons.lang3.builder.ToStringBuilder
- org.apache.commons.lang3.ClassUtils
- org.apache.commons.lang3.tuple.ImmutablePair
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