A java.lang.StringIndexOutOfBoundsException was thrown when YAML files contains string that ends with .

[EricleeCrystal]

What version of OpenRewrite are you using?

I am using

• OpenRewrite v2.23.2 (org.openrewrite.recipe:rewrite-recipe-bom:2.23.2)
• Maven plugin v5.47.0
• Maven 3.9.8

How are you running OpenRewrite?

I am using the maven plugin by below command, and my project is a multiple module project.

mvn -B org.openrewrite.maven:rewrite-maven-plugin:5.47.0:runNoFork \
-Drewrite.activeRecipes=org.openrewrite.java.jackson.CodehausClassesToFasterXML \
-Drewrite.recipeArtifactCoordinates=org.openrewrite.recipe:rewrite-spring:5.25.0,org.openrewrite.recipe:rewrite-apache:1.10.0,org.openrewrite.recipe:rewrite-jackson:0.11.0 \
-Dproject.prerequisites.maven=3.0
-f ./pom.xml

What is the smallest, simplest way to reproduce the problem?

1. Create a simple spring boot project from the https://start.spring.io/
2. Change the parent version to 2.7.18, rename the application.properties to application.yml, and add below configuration to the application.yml.

ignorePattern: ['a.b.']

3. Execute below command

mvn -B org.openrewrite.maven:rewrite-maven-plugin:5.47.0:runNoFork \
-Drewrite.activeRecipes=org.openrewrite.java.jackson.CodehausClassesToFasterXML \
-Drewrite.recipeArtifactCoordinates=org.openrewrite.recipe:rewrite-spring:5.25.0,org.openrewrite.recipe:rewrite-apache:1.10.0,org.openrewrite.recipe:rewrite-jackson:0.11.0 \
-Dproject.prerequisites.maven=3.0
-f ./pom.xml

What did you expect to see?

There is no exception thrown.

What did you see instead?

Below exception thrown.

[ERROR] Failed to execute goal org.openrewrite.maven:rewrite-maven-plugin:5.47.0:runNoFork (default-cli) on project demo: Execution default-cli of goal org.openrewrite.maven:rewrite-maven-plugin:5.47.0:runNoFork failed: Error while visiting src/main/resources/application.yml: java.lang.StringIndexOutOfBoundsException: String index out of range: 4

What is the full stack trace of any errors you encountered?

[ERROR] Failed to execute goal org.openrewrite.maven:rewrite-maven-plugin:5.47.0:runNoFork (default-cli) on project demo: Execution default-cli of goal org.openrewrite.maven:rewrite-maven-plugin:5.47.0:runNoFork failed: Error while visiting src/main/resources/application.yml: java.lang.StringIndexOutOfBoundsException: String index out of range: 4
[ERROR]   java.base/java.lang.StringLatin1.charAt(StringLatin1.java:48)
[ERROR]   java.base/java.lang.String.charAt(String.java:1513)
[ERROR]   org.openrewrite.yaml.trait.YamlReference$Matcher.determineKind(YamlReference.java:81)
[ERROR]   org.openrewrite.yaml.trait.YamlReference$Matcher.test(YamlReference.java:75)
[ERROR]   org.openrewrite.yaml.trait.YamlReference$Matcher.test(YamlReference.java:65)
[ERROR]   org.openrewrite.trait.SimpleTraitMatcher$1.preVisit(SimpleTraitMatcher.java:77)
[ERROR]   org.openrewrite.trait.SimpleTraitMatcher_1_YamlVisitor.preVisit(SimpleTraitMatcher_1_YamlVisitor.zig:81)
[ERROR]   org.openrewrite.TreeVisitor.visit(TreeVisitor.java:247)
[ERROR]   org.openrewrite.TreeVisitor.visitAndCast(TreeVisitor.java:320)
[ERROR]   org.openrewrite.yaml.YamlVisitor.visitSequenceEntry(YamlVisitor.java:105)
[ERROR]   org.openrewrite.yaml.tree.Yaml$Sequence$Entry.acceptYaml(Yaml.java:438)
[ERROR]   org.openrewrite.yaml.tree.Yaml.accept(Yaml.java:43)
[ERROR]   org.openrewrite.TreeVisitor.visit(TreeVisitor.java:250)
[ERROR]   org.openrewrite.TreeVisitor.visitAndCast(TreeVisitor.java:320)
[ERROR]   org.openrewrite.yaml.YamlVisitor.lambda$visitSequence$2(YamlVisitor.java:100)
[ERROR]   org.openrewrite.internal.ListUtils.map(ListUtils.java:243)
[ERROR]   ...
[ERROR] -> [Help 1]