RFR: 8265375: Bootcycle builds fail with StackOverflowError in cldrconverter [v2]

[Naoto Sato]

> Please review the fix to the tier4 build failure. The piece of code that made into `CLDRLocaleProviderAdapter.java` was also needed in the build tool counterpart (`CLDRConverter`).

Naoto Sato has updated the pull request incrementally with one additional commit since the last revision:

  Copyright year update.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3553/files
  - new: https://git.openjdk.java.net/jdk/pull/3553/files/91326786..e54cb6ec

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3553&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3553&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3553.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3553/head:pull/3553

PR: https://git.openjdk.java.net/jdk/pull/3553