java: remove dead methods

Change-Id: I9f2e705fd603a7c8832c0f0772bee9f395380a0d
java: remove unused fields

Change-Id: I25fef9590a34ec8d9aab182b3d267ae3cd649a87
java: remove unused variables

Change-Id: I1b04fbf4d4562ff8e74f6ccdb2fd989d79cc869b
java: remove unused imports

Change-Id: Idbba5bb89bee4d88ed0306d5151e238a1bc19cec
java: code some code to use non-deprecated constructors

Change-Id: I4194a3dfd361d1955cf5bb4fab915150eecfa21a
add a comment so I don't have to figure out this classes purpose again

Change-Id: I92f3cb3e9308e2d4e369c1ce216952b0eca09b17
java: use the non-deprecated constructor of URI

Specifically, org.apache.commons.httpclient.URI

Change-Id: Ib1f888559e9401d5fabbe8ea0585a716d9bb5a59
java: remove redundant super-interfaces

Change-Id: Iaf671ef87057362c804999a5154d8e8277bbc4b8
java: use an empty block rather than an empty statement

Change-Id: I05e60964521d6ec3694483816d91359fb12c8e4b
java: remove unnecessary semi-colons

Change-Id: Ibeeefc6e6ee8f7bed97a02f569f239ff035d38c4
java: variable cannot be null

remove null check where null-analyis reveals the variable cannot be null

Change-Id: Ied0a24665514bbf68c2ed5f15af9e5c2232a8033
java: redundant assignment, variable can only be null

Change-Id: I91209c5c185cf097a1609244419d73d4757d7d18
java: remove redundant null checks

Change-Id: Ia42e5ed715fbd3f5b84029a9844da55f307c6260
java: remove exceptions from throws clauses that are not

.. actually thrown

Change-Id: Ia326ac7f82e11b948ed0f34e20908a96e7adcd10