injected String variable is null even though it is set in configuration but with all digits

[sopel39]

example:

@Inject(name="variable")
String variable

configuration:

variable=1234

In such case variable would be null. However if in configuration variable=1234t, then variable is injected correctly.

See: https://github.com/Teradata/presto/pull/338#issuecomment-246400538