RFR: 8248001: javadoc generates invalid HTML pages whose ftp:// links are broken [v2]

[Masanori Yano]

> Could you please review the 8248001 bug fixes?
> 
> The problem is that javadoc generates invalid HTML pages whose ftp:// links are broken. The fix changes not to use protocol names directly, but to use regular expression.

Masanori Yano has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:

 - 8248001: javadoc generates invalid HTML pages whose ftp:// links are broken
 - Merge branch 'master' of https://github.com/masyano/jdk into 8248001
 - 8248001: javadoc generates invalid HTML pages whose ftp:// links are broken
 - 8248001: javadoc generates invalid HTML pages whose ftp:// links are broken
 - 8248001: javadoc generates invalid HTML pages whose ftp:// links are broken

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/5198/files
  - new: https://git.openjdk.java.net/jdk/pull/5198/files/6121ce48..7639e7df

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5198&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5198&range=00-01

  Stats: 39039 lines in 1283 files changed: 26757 ins; 6626 del; 5656 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5198.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5198/head:pull/5198

PR: https://git.openjdk.java.net/jdk/pull/5198