ConfigException

Some problem with a JavaBean we are trying to initialize.

Exception indicating that a path expression was invalid. Try putting double quotes around path elements that contain "special" characters.

Exception indicating that a value was messed up, for example you may have asked for a duration and the value can't be sensibly parsed as a duration.

Exception indicating that there's a bug in something (possibly the library itself) or the runtime environment is broken. This exception should never be handled; instead, something should be fixed to keep the exception from occurring. This exception can be thrown by any method in the library.

Exception that doesn't fall into any other category.

Exception indicating that there was an IO error.

Exception indicates that the setting was never set to anything, not even null.

Exception indicating that you tried to use a function that requires substitutions to be resolved, but substitutions have not been resolved (that is, resolve() was not called). This is always a bug in either application code or the library; it's wrong to write a handler for this exception because you should be able to fix the code to avoid it by adding calls to resolve().

Exception indicates that the setting was treated as missing because it was set to null.

Exception indicating that there was a parse error.

Exception indicating that a substitution did not resolve to anything. Thrown by resolve().

Exception indicating that Config#checkValid found validity problems. The problems are available via the ValidationFailed#problems method. The getMessage of this exception is a potentially very long string listing all the problems found.

Information about a problem that occurred in [[Config#checkValid]]. A [[ConfigException.ValidationFailed]] exception thrown from checkValid includes a list of problems encountered.

Exception indicating that the type of a value does not match the type you requested.