Github user zentol commented on the issue:
https://github.com/apache/flink/pull/3495
Ran into an issue. Some config parameters, like `jobmanager.web.tmpdir`,
have non-constant default values that are evaluated at runtime, like
`System.getProperty("java.tmpdir")`. These values now show up in the generated
table as the default value.
I see two ways to fix this: Either enforce, manually i might add, that all
default values must be constant, or explicitly mark these kind of default
values as dynamic in the OptionBuilder, with a new method like
`withDynamicDefaultValue(T value, String origin)`.
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