Java 11 has been released since we bumped the javadoc browse urls earlier in Clojure 1.10.
In the process of adding this, I realized it's broken for Java 11 as they now require the module in the url, so should probably fix it for 1.10.
Proposed: The attached patch hardcodes the java.base module in the Java 11 javadoc url (covers the most common Java classes, but not all). We could use class.getModule().getName() to build the generic url for all JDK classes, but that would require relying on at least Java 9 APIs to be able to make the call. For now, this does not seem worth doing. When we next bump min JDK we can revisit.