[jdk11u-dev] RFR: 8273278: Improving XSLT support for GraalVM's Native Image

[Jovan Stevanovic]

This PR is backporting changes from [PR](https://github.com/openjdk/jdk/pull/5331) on the OpenJDK repo.

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Commit messages:
 - 8273278: Improving XSLT support for GraalVM's Native Image.

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/324/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=324&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8273278
  Stats: 23 lines in 4 files changed: 5 ins; 0 del; 18 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/324.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/324/head:pull/324

PR: https://git.openjdk.java.net/jdk11u-dev/pull/324