RFR: 8266320: (bf) ReadOnlyBufferException in heap buffer put(String, int, int) should not be conditional

[Philippe Marschall]

8266320: (bf) ReadOnlyBufferException in heap buffer put(String,int,int) should not be conditional

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Commit messages:
 - 8266320: (bf) ReadOnlyBufferException in heap buffer put(String,int,int) should not be conditional

Changes: https://git.openjdk.java.net/jdk/pull/3809/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3809&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266320
  Stats: 9 lines in 2 files changed: 7 ins; 2 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3809.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3809/head:pull/3809

PR: https://git.openjdk.java.net/jdk/pull/3809