8252199: Reimplement support of Type 1 fonts without MappedByteBuffer

[prrace]

I changed it to read the file into a ByteBuffer to avoid the problem that we can't control when NIO free's the mmaped buffer. This is a problem for leaking tmp Type1 font files when using createFont and I thought maybe we could just change that case, but Type 1 fonts are getting very rare. Neither Mac nor Windows ship them and Mac at least does not support them at all, and current Linuxes seem to be almost all TTF and OTF fonts. Also T1 fonts are small, so any minimal peformance benefit is not worth it. There isn't a specific regression test.
I verified this on Ubuntu 20.04 which has at least a (very) few Type 1 fonts.

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Progress

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Issue

• JDK-8252199: Reimplement support of Type 1 fonts without MappedByteBuffer

Reviewers

• Sergey Bylokhov (@mrserb - Reviewer)
• Jayathirth D V (@jayathirthrao - Reviewer)

Download

$ git fetch https://git.openjdk.java.net/jdk pull/258/head:pull/258
$ git checkout pull/258

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Webrevs

• 00: Full (908a6c9)

[openjdk]

@prrace This change now passes all automated pre-integration checks. In addition to the automated checks, the change must also fulfill all project specific requirements

After integration, the commit message will be:

8252199: Reimplement support of Type 1 fonts without MappedByteBuffer

Reviewed-by: serb, jdv

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Since the source branch of this PR was last updated there have been 9 commits pushed to the master branch:

• 3d88d38: 8252070: Some platform-specific BLIT optimizations are not effective
• 83b0537: 8253291: bug7072653.java still failed "Popup window height ... is wrong"
• d27835b: 8249142: java/awt/FontClass/CreateFont/DeleteFont.sh is unstable
• 1438ce0: 8252188: Crash in OrINode::Ideal(PhaseGVN*, bool)+0x8b9
• 224a30f: 8252311: AArch64: save two words in itable lookup stub
• 22f7af7: 8253317: The "com/apple/eawt" is missed in the "othervm.dirs" config option
• f55dd9d: 8251548: Remove unnecessary explicit initialization of volatile variables in security-libs code
• d35b117: 8253361: Shenandoah: runtime barrier does not honor ShenandoahSelfFixing flag
• f37c34d: 8253270: Limit fastdebug inlining in G1 evacuation

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid automatic rebasing, please merge master into your branch, and then specify the current head hash when integrating, like this: /integrate 3d88d387c35aa52824a45e926d2ba84b6da6e60c.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[prrace]

/integrate

[openjdk]

@prrace Since your change was applied there have been 9 commits pushed to the master branch:

• 3d88d38: 8252070: Some platform-specific BLIT optimizations are not effective
• 83b0537: 8253291: bug7072653.java still failed "Popup window height ... is wrong"
• d27835b: 8249142: java/awt/FontClass/CreateFont/DeleteFont.sh is unstable
• 1438ce0: 8252188: Crash in OrINode::Ideal(PhaseGVN*, bool)+0x8b9
• 224a30f: 8252311: AArch64: save two words in itable lookup stub
• 22f7af7: 8253317: The "com/apple/eawt" is missed in the "othervm.dirs" config option
• f55dd9d: 8251548: Remove unnecessary explicit initialization of volatile variables in security-libs code
• d35b117: 8253361: Shenandoah: runtime barrier does not honor ShenandoahSelfFixing flag
• f37c34d: 8253270: Limit fastdebug inlining in G1 evacuation

Your commit was automatically rebased without conflicts.

Pushed as commit cc7521c.

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