[crac] RFR: Provide arguments for restore [v5]

[Anton Kozlov]

> This change adds an ability to receive a new set of command-line arguments in the restored Java instance. The supplied demo code shows a faster replacement for `javac`.

Anton Kozlov has updated the pull request incrementally with two additional commits since the last revision:

 - Use System class loader
 - Make catch() preceise

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Changes:
  - all: https://git.openjdk.java.net/crac/pull/16/files
  - new: https://git.openjdk.java.net/crac/pull/16/files/b45a5b85..745e75d1

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=crac&pr=16&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=crac&pr=16&range=03-04

  Stats: 10 lines in 1 file changed: 5 ins; 1 del; 4 mod
  Patch: https://git.openjdk.java.net/crac/pull/16.diff
  Fetch: git fetch https://git.openjdk.java.net/crac pull/16/head:pull/16

PR: https://git.openjdk.java.net/crac/pull/16