RFR: 8278263: Remove redundant synchronized from URLStreamHandler.openConnection methods

[Daniel Fuchs]

On Fri, 12 Nov 2021 19:35:10 GMT, Andrey Turbanov <aturbanov at openjdk.org> wrote:

> All this Handler's are stateless and there is nothing to protect via synchronization.

There should be no code outside of the JDK extending those classes, especially with strong encapsulation in place.
I believe this is good to go!

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PR: https://git.openjdk.java.net/jdk/pull/6373