8315585: Optimization for decimal to string

[wenshao]

Continue to complete PR #16006 and PR #21593 to improve BigDecimal::toString and BigDecimal::toPlainString performance and reduce duplicate code

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Warnings

 ⚠️ Patch contains a binary file (src/java.base/share/classes/jdk/internal/icu/impl/data/icudt74b/nfc.nrm)
 ⚠️ Patch contains a binary file (src/java.base/share/classes/jdk/internal/icu/impl/data/icudt74b/nfkc.nrm)
 ⚠️ Patch contains a binary file (src/java.base/share/classes/jdk/internal/icu/impl/data/icudt74b/ubidi.icu)
 ⚠️ Patch contains a binary file (src/java.base/share/classes/jdk/internal/icu/impl/data/icudt74b/uprops.icu)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/javax/swing/text/doc-files/Document-insert.gif)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-bw16.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-bw24.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-bw32.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-bw48.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-interim16.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-interim24.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-interim32.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-interim48.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-yellow16.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-yellow24.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-yellow32.png)
 ⚠️ Patch contains a binary file (src/java.desktop/share/classes/sun/awt/resources/security-icon-yellow48.png)
 ⚠️ Patch contains a binary file (src/java.desktop/windows/native/libawt/windows/security_warning.ico)
 ⚠️ Patch contains a binary file (src/utils/IdealGraphVisualizer/View/src/main/resources/com/sun/hotspot/igv/view/images/hideDuplicates.png)
 ⚠️ Patch contains a binary file (test/jdk/java/security/ProtectionDomain/AllPerm.jar)
 ⚠️ Patch contains a binary file (test/jdk/sun/security/provider/PolicyFile/TokenStore.keystore)
 ⚠️ Patch contains a binary file (test/jdk/sun/security/provider/PolicyFile/TrustedCert.keystore)
 ⚠️ Patch contains a binary file (test/jdk/sun/security/provider/PolicyFile/TrustedCert.keystore1)
 ⚠️ Patch contains a binary file (test/jdk/sun/security/provider/PolicyParser/ExtDirsA/a.jar)
 ⚠️ Patch contains a binary file (test/jdk/sun/security/provider/PolicyParser/ExtDirsB/b.jar)

Issue

• JDK-8315585: Optimization for decimal to string (Enhancement - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/22009/head:pull/22009
$ git checkout pull/22009

Update a local copy of the PR:
$ git checkout pull/22009
$ git pull https://git.openjdk.org/jdk.git pull/22009/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 22009

View PR using the GUI difftool:
$ git pr show -t 22009

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/22009.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back swen! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

@wenshao The following label will be automatically applied to this pull request:

• core-libs

When this pull request is ready to be reviewed, an "RFR" email will be sent to the corresponding mailing list. If you would like to change these labels, use the /label pull request command.

[mlbridge]

Webrevs

• 00: Full (2f4c7c97)

[openjdk]

@wenshao this pull request can not be integrated into master due to one or more merge conflicts. To resolve these merge conflicts and update this pull request you can run the following commands in the local repository for your personal fork:

git checkout optim_decimal_to_string_202411
git fetch https://git.openjdk.org/jdk.git master
git merge FETCH_HEAD
# resolve conflicts and follow the instructions given by git merge
git commit -m "Merge master"
git push

[bridgekeeper]

@wenshao This pull request has been inactive for more than 4 weeks and will be automatically closed if another 4 weeks passes without any activity. To avoid this, simply add a new comment to the pull request. Feel free to ask for assistance if you need help with progressing this pull request towards integration!