RFR: 8253100: Fix "no comment" warnings in java.base/java.net [v3]

[Daniel Fuchs]

> Hi, 
> 
> Please find here a change that fixes "no comment" warnings generated by `javadoc -Xdoclint` for `java.base/java.net`

Daniel Fuchs has updated the pull request incrementally with one additional commit since the last revision:

  Fixed @throws to conform to the style of other @throws in java.net.URI

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2715/files
  - new: https://git.openjdk.java.net/jdk/pull/2715/files/ff11d016..ea605ca6

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2715&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2715&range=01-02

  Stats: 7 lines in 1 file changed: 4 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2715.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2715/head:pull/2715

PR: https://git.openjdk.java.net/jdk/pull/2715