From ee306d8c294a371e35b8d8b740dd403b356339f3 Mon Sep 17 00:00:00 2001
From: Patrick Boos <patrick.boos@getyourguide.com>
Date: Mon, 24 Jun 2024 11:53:51 +0200
Subject: [PATCH] fix: Do not report java.util.ConcurrentModificationException
 as violation

---
 .../core/exclusions/InternalViolationExclusions.java      | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/openapi-validation-core/src/main/java/com/getyourguide/openapi/validation/core/exclusions/InternalViolationExclusions.java b/openapi-validation-core/src/main/java/com/getyourguide/openapi/validation/core/exclusions/InternalViolationExclusions.java
index bae8474d..b8c96754 100644
--- a/openapi-validation-core/src/main/java/com/getyourguide/openapi/validation/core/exclusions/InternalViolationExclusions.java
+++ b/openapi-validation-core/src/main/java/com/getyourguide/openapi/validation/core/exclusions/InternalViolationExclusions.java
@@ -17,7 +17,8 @@ public boolean isExcluded(OpenApiViolation violation) {
             || falsePositive406(violation)
             || falsePositiveRequestWith4xxResponse(violation)
             || customViolationExclusions.isExcluded(violation)
-            || oneOfMatchesMoreThanOneSchema(violation);
+            || oneOfMatchesMoreThanOneSchema(violation)
+            || isConcurrentModificationExceptionInLibrary(violation);
     }
 
     private static boolean oneOfMatchesMoreThanOneSchema(OpenApiViolation violation) {
@@ -55,4 +56,9 @@ private boolean falsePositive406(OpenApiViolation violation) {
         return violation.getResponseStatus().orElse(0) == 406
             && Rules.Response.STATUS_UNKNOWN.equals(violation.getRule());
     }
+
+    private boolean isConcurrentModificationExceptionInLibrary(OpenApiViolation violation) {
+        return "validation.response.body.schema.unknownError".equals(violation.getRule())
+            && violation.getMessage().contains("java.util.ConcurrentModificationException");
+    }
 }