Is an HTTP PUT request required to include a body?

Question

I\'m having trouble finding a definite specification of this in the standard. I have an HTTP client that\'s not including a Content-Length: 0 header when doing

Answer 1

Not answering the question, but asserting how jaxrs allows me to frequent use of bodyless PUTs:

Example of bodyless put: Give user an additional permission.

PUT /admin/users/{username}/permission/{permission}