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Steps to Reproduce:
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STEP: Create Dynamic Web Project with JAX-RS support
STEP: Create JAX-RS resource with @PathParam field and with method using filed as parameter in @Path:

@Path("/") public class CarResource { @PathParam("type") private String type; @GET @Path("{type}/{id}") public Object getCar(@PathParam("id") int id) { return null; } }

ASSERT: There is no warning
FAIL: There is a warning:

The @Path template parameter 'type' is not bound to any parameter annotated with @PathParam of the 'getCar(int id)' method.
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STEP: Create Dynamic Web Project with JAX-RS support STEP: Create JAX-RS resource with @PathParam field and with method using filed as parameter in @Path: @Path( "/" ) public class CarResource { @PathParam( "type" ) private String type; @GET @Path( "{type}/{id}" ) public Object getCar(@PathParam( "id" ) int id) { return null ; } } ASSERT: There is no warning FAIL: There is a warning: The @Path template parameter 'type' is not bound to any parameter annotated with @PathParam of the 'getCar( int id)' method.
Git Pull Request:
https://github.com/jbosstools/jbosstools-webservices/pull/133

Validation of @Path parameters ignores @PathParam fields so if you have @PathParam field used as parameter in @Path, you get warning:

The @Path template parameter '<parameter name>' is not bound to any parameter annotated with  @PathParam of the '<method name>' method.