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https://issues.apache.org/jira/browse/LUCENE-10419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17491649#comment-17491649
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Dawid Weiss commented on LUCENE-10419:
--------------------------------------
I can reproduce this elsewhere by magnifying the repetitions:
{code:java}
diff --git a/gradle/validation/validate-source-patterns.gradle
b/gradle/validation/validate-source-patterns.gradle
index b4c1f899535..775fb448711 100644
--- a/gradle/validation/validate-source-patterns.gradle
+++ b/gradle/validation/validate-source-patterns.gradle
@@ -173,6 +173,10 @@ class ValidateSourcePatternsTask extends DefaultTask {
def validSPINameJavadocTag = ~$/(?s)\s*\*\s*@lucene\.spi\s+\{@value
#NAME\}/$; def isLicense = { matcher, ratDocument ->
+for (int i = 0; i < 200; i++) {
+ licenseMatcher.reset()
+ lineSplitter.split(matcher.group(1)).any {
licenseMatcher.match(ratDocument, it) }
+}
licenseMatcher.reset()
return lineSplitter.split(matcher.group(1)).any {
licenseMatcher.match(ratDocument, it) }
} {code}
> Identify occasional validateSourcePatterns error on CI servers
> --------------------------------------------------------------
>
> Key: LUCENE-10419
> URL: https://issues.apache.org/jira/browse/LUCENE-10419
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Dawid Weiss
> Assignee: Dawid Weiss
> Priority: Trivial
>
> {code}
> What went wrong: Execution failed for task
> ':lucene:analysis:icu:validateSourcePatterns'. > start 1, end 0, length 0
> {code}
>
> This annoys me. It's a message from stringbuilder.substring somewhere - let's
> get the stack of that first and see where the bug is.
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