Fix isRelativeUrl incorrectly detecting URLs containing @, -, ~, . as not relative.

[Romanow88]

Fixes #22767

Updated the regex with additional symbols.
Added test to validate: org.openapitools.codegen.DefaultGeneratorTest#testHandlesRelativeUrlsWithSpecialChars.

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Summary by cubic

Fixes #22767 by updating isRelativeUrl to accept ., ~, @, and - in path segments. Relative server URLs like /api/v4.0, /api-v3, /~api/v5, and /api/@6 are now detected correctly, ensuring the right basePath.

^{Written for commit 2934485. Summary will update on new commits.}

[cubic-dev-ai]

1 issue found across 6 files

Prompt for AI agents (all issues)

Check if these issues are valid — if so, understand the root cause of each and fix them.


<file name="modules/openapi-generator/src/test/java/org/openapitools/codegen/DefaultGeneratorTest.java">

<violation number="1" location="modules/openapi-generator/src/test/java/org/openapitools/codegen/DefaultGeneratorTest.java:677">
P2: New test references spec files that are not present under src/test/resources/3_0, so the test will fail with file-not-found unless the resources are added or paths corrected.</violation>
</file>

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[cubic-dev-ai]

P2: New test references spec files that are not present under src/test/resources/3_0, so the test will fail with file-not-found unless the resources are added or paths corrected.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At modules/openapi-generator/src/test/java/org/openapitools/codegen/DefaultGeneratorTest.java, line 677:

<comment>New test references spec files that are not present under src/test/resources/3_0, so the test will fail with file-not-found unless the resources are added or paths corrected.</comment>

<file context>
@@ -671,6 +671,32 @@ public void testHandlesTrailingSlashInServers() {
+    @Test
+    public void testHandlesRelativeUrlsWithSpecialChars() {
+        final Map<String, String> specToBasePath = Map.of(
+          "src/test/resources/3_0/relative-url-point.yaml", "/api/v4.0",
+          "src/test/resources/3_0/relative-url-dash.yaml", "/api-v3",
+          "src/test/resources/3_0/relative-url-tilde.yaml", "/~api/v5",
</file context>

[Romanow88]

Those are not all specs, but pairs of specs and expected results for the specs.