RFR: 8264940: java/lang/invoke/6998541/Test6998541.java failed "guarantee(ik->is_initialized()) failed: java/lang/Byte$ByteCache must be initialized" [v4]

[Wang Huang]

> *  The main reason is that in this situation the `BoxCache` is not initialized before `uncommon_trap`.
> *  `java.lang.Byte$ByteCache` is loaded without initializing here 
> * I think that all `*Cache` classes should be loaded in this situation.

Wang Huang has updated the pull request incrementally with one additional commit since the last revision:

  refactor

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3411/files
  - new: https://git.openjdk.java.net/jdk/pull/3411/files/6c7f9435..3cde7f94

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3411&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3411&range=02-03

  Stats: 48 lines in 3 files changed: 26 ins; 21 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3411.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3411/head:pull/3411

PR: https://git.openjdk.java.net/jdk/pull/3411