How to force URIBuilder.path(…) to encode parameters like “

Question

How to force URIBuilder.path(...) to encode parameters like \"%AD\"?

The methods path, replacePath and segm

Answer 1

UriBuilder

This is possible with help of UriComponent from Jersey or URLEncoder directly from Java:

UriBuilder.fromUri("https://dummy.com")
        .queryParam("param",
                UriComponent.encode("%AD",
                    UriComponent.Type.QUERY_PARAM_SPACE_ENCODED))
        .build();

Which result in:

https://dummy.com/?param=%25AD

Or:

UriBuilder.fromUri("https://dummy.com")
        .queryParam("param", URLEncoder.encode("%AD", "UTF-8"))
        .build()

Will result in:

https://dummy.com/?param=%25AD

For a more complex examples (i.e. encoding JSON in query param) this approach is also possible. Let's assume you have a JSON like {"Entity":{"foo":"foo","bar":"bar"}}. When encoded using UriComponent the result for query param would look like:

https://dummy.com/?param=%7B%22Entity%22:%7B%22foo%22:%22foo%22,%22bar%22:%22bar%22%7D%7D

JSON like this could be even injected via @QueryParam into resource field / method param (see JSON in Query Params or How to Inject Custom Java Types via JAX-RS Parameter Annotations).

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Which Jersey version do you use? In the tags you mention Jersey 2 but in the RuntimeDelegate section you're using Jersey 1 stuff.