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ICU-22602 Fix stack overflow inside flattenVariables #2740

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merged 1 commit into from
Dec 14, 2023
Merged

ICU-22602 Fix stack overflow inside flattenVariables #2740

merged 1 commit into from
Dec 14, 2023

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FrankYFTang
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@FrankYFTang FrankYFTang commented Dec 13, 2023 •
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Limit the recursive call of flattenVariables to maximum depth 4000 since Java on my machine throw stack overflow exception around 4300.

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  • Required: Issue filed: https://unicode-org.atlassian.net/browse/ICU-22602
  • Required: The PR title must be prefixed with a JIRA Issue number.
  • Required: The PR description must include the link to the Jira Issue, for example by completing the URL in the first checklist item
  • Required: Each commit message must be prefixed with a JIRA Issue number.
  • Issue accepted (done by Technical Committee after discussion)
  • Tests included, if applicable
  • API docs and/or User Guide docs changed or added, if applicable

richgillam
richgillam previously approved these changes Dec 13, 2023
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Notice: the branch changed across the force-push!

  • icu4c/source/common/rbbinode.cpp is different
  • icu4j/main/core/src/main/java/com/ibm/icu/text/RBBINode.java is different

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~ Your Friendly Jira-GitHub PR Checker Bot

@richgillam
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It'd really make reviewing easier if you'd wait to squash until the fix is ready to go in. What's changed since the last time I looked at this?

@FrankYFTang
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It'd really make reviewing easier if you'd wait to squash until the fix is ready to go in. What's changed since the last time I looked at this?

sorry, Java 11 stackoverflow when the depth reach 3906 so I have to change the limit from 4000 to 3500 and somehow I forgot to remove a println in the Java code.

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sorry, Java 11 stackoverflow when the depth reach 3906 so I have to change the limit from 4000 to 3500 and somehow I forgot to remove a println in the Java code.

Ah. Okay, that all sounds reasonable.

richgillam
richgillam previously approved these changes Dec 13, 2023
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aheninger
aheninger requested changes Dec 13, 2023
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icu4c/source/common/rbbinode.cpp Outdated Show resolved Hide resolved
icu4c/source/common/rbbinode.cpp Show resolved Hide resolved
icu4j/main/core/src/test/java/com/ibm/icu/dev/test/rbbi/RBBITest.java Outdated Show resolved Hide resolved
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Notice: the branch changed across the force-push!

  • icu4c/source/common/rbbinode.cpp is different
  • icu4j/main/core/src/test/java/com/ibm/icu/dev/test/rbbi/RBBITest.java is different

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Notice: the branch changed across the force-push!

  • icu4c/source/common/rbbinode.cpp is different

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~ Your Friendly Jira-GitHub PR Checker Bot

@FrankYFTang
ICU-22602 Fix stack overflow inside flattenVariables
961539e 
Limit the recursive call of flattenVariables to maximum depth 3500
since Java on my machine throw stack overflow exception around 3900.
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Notice: the branch changed across the force-push!

  • icu4j/main/core/src/main/java/com/ibm/icu/text/RBBINode.java is different

View Diff Across Force-Push

~ Your Friendly Jira-GitHub PR Checker Bot

richgillam
richgillam approved these changes Dec 13, 2023
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It looks to me like you addressed Andy's comments, but you might still need him to confirm that himself...

@FrankYFTang FrankYFTang merged commit 19af9e7 into unicode-org:main Dec 14, 2023
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@FrankYFTang FrankYFTang deleted the ICU-22602-stackoverflow branch December 14, 2023 23:14
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@aheninger aheninger aheninger approved these changes

@richgillam richgillam richgillam approved these changes

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