Ok, java was influential in a ton of subsequent design patterns. For a long time java was pretty much the test-bed for these ideas. And the other half of the point remains: modern design patterns were not part of the standard toolbox at the time. To be clear, I am not defending the design of the URL class. Just that you need to judge it in context.
Design Patterns (Elements of Reusable Object-Oriented Software), Erich Gamma, Richard Helm, Ralph Johnson, John Vlissides, 1995]
Same year Java was invented. Hard to imagine Java inspired it.