RFR: 8328953 : JEditorPane.read throws ChangedCharSetException

[rjolly]

ChangedCharSetException is used to amend the charset during read according to html directives. Currently it causes immediate exit of the method which in turn causes failure to load html documents with charset directives (even if the latter must not change after all). This PR restores the catch operation as it was before the use of try with resources.

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Commit messages:
 - 8328953 : JEditorPane.read throws ChangedCharSetException

Changes: https://git.openjdk.org/jdk/pull/17567/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17567&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328953
  Stats: 118 lines in 2 files changed: 93 ins; 16 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/17567.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17567/head:pull/17567

PR: https://git.openjdk.org/jdk/pull/17567