RFR: 8272908: Missing coverage for certain classes in com.sun.org.apache.xml.internal.security [v2]

[Fernando Guallini]

> This patch improves code coverage on the following classes:
> - com.sun.org.apache.xml.internal.security.algorithms.implementations.IntegrityHmac
> - com.sun.org.apache.xml.internal.security.utils.ElementProxy
> - com.sun.org.apache.xml.internal.security.keys.KeyInfo
> 
> The new tests exercise code blocks that are not currently covered by other tests.

Fernando Guallini has updated the pull request incrementally with one additional commit since the last revision:

  throw RuntimeException

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/5913/files
  - new: https://git.openjdk.java.net/jdk/pull/5913/files/4d8c0c89..4916ebad

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5913&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5913&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5913.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5913/head:pull/5913

PR: https://git.openjdk.java.net/jdk/pull/5913