Give warning when using capturing patterns with the AntPathMatcher

This fails:

@GetMapping("/resource/{*tail}")
public Object statics(@PathVariable String tail) {...}

with

Required URI template variable 'tail' for method parameter type String is not present

In fact what you need is

@GetMapping("/resource/{*tail}")
public Object statics(@PathVariable("*tail") String tail) {...}

This isn't really obvious from either the error message or the docs. Maybe we should support the first variant anyway?

I can't reproduce this. With the following handler method:

@GetMapping("/resources/{*tail}")
	public String handle(@PathVariable String tail) {
		return tail;
	}

a request for /resources/foo/bar/baz returns /foo/bar/baz.

This issue was probably due to using the default AntPathMatcher in combination with a capturing pattern ({*foo}). We should throw an exception when users do so.

Throw exception using capturing patterns in AntPathMatcher

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Give warning when using capturing patterns with the AntPathMatcher #27688

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Give warning when using capturing patterns with the AntPathMatcher #27688

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poutsma commented on Nov 17, 2021

poutsma commented on Nov 17, 2021

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