8280373: Update Xalan serializer / SystemIDResolver to align with JDK-8270492

[omikhaltsova]

I'd like to backport JDK-8280373 to jdk13u in order to align after JDK-8270492 the copy
src/java.xml/share/classes/com/sun/org/apache/xml/internal/serializer/utils/SystemIDResolver.java
to its origin
src/java.xml/share/classes/com/sun/org/apache/xml/internal/utils/SystemIDResolver.java
All regular tests passed.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8280373: Update Xalan serializer / SystemIDResolver to align with JDK-8270492

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk13u-dev pull/323/head:pull/323
$ git checkout pull/323

Update a local copy of the PR:
$ git checkout pull/323
$ git pull https://git.openjdk.java.net/jdk13u-dev pull/323/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 323

View PR using the GUI difftool:
$ git pr show -t 323

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk13u-dev/pull/323.diff

[bridgekeeper]

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[openjdk]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

@omikhaltsova This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8280373: Update Xalan serializer / SystemIDResolver to align with JDK-8270492

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[mlbridge]

Webrevs

• 00: Full (a5851955)

[omikhaltsova]

/integrate

[openjdk]

Going to push as commit e77beca.

[openjdk]

@omikhaltsova Pushed as commit e77beca.

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