zallyLint is failing with Unable to load schema: http://swagger.io/v2/schema.json

[hvaddi-cogito]

The zallyLint is failing now because, in the src/main/resources/rules-config.conf, we have swagger pointing to "http://swagger.io/v2/schema.json" and its being redirected to "http://23.22.16.221/v2/schema.json".

This seems to be causing below issue.

2023-12-06T14:20:15.044+0530 [DEBUG] [sun.net.www.protocol.http.HttpURLConnection] sun.net.www.MessageHeader@52af4ba45 pairs: {GET /v2/schema.json HTTP/1.1: null}{User-Agent: Java/17.0.7}{Host: swagger.io}{Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2}{Connection: keep-alive}
2023-12-06T14:20:15.279+0530 [DEBUG] [sun.net.www.protocol.http.HttpURLConnection] sun.net.www.MessageHeader@2772b71210 pairs: {null: HTTP/1.1 301 Moved Permanently}{Date: Wed, 06 Dec 2023 08:50:15 GMT}{Transfer-Encoding: chunked}{Connection: keep-alive}{Cache-Control: max-age=3600}{Expires: Wed, 06 Dec 2023 09:50:15 GMT}{Location: https://swagger.io/v2/schema.json}{Server: cloudflare}{CF-RAY: 831347bea8660664-IAD}{alt-svc: h3=":443"; ma=86400}
2023-12-06T14:20:15.298+0530 [ERROR] [org.zalando.zally.ruleset.zalando.UseOpenApiRule] Unable to load schema: http://swagger.io/v2/schema.json
java.lang.ClassCastException: class com.fasterxml.jackson.databind.node.NullNode cannot be cast to class com.fasterxml.jackson.databind.node.ObjectNode (com.fasterxml.jackson.databind.node.NullNode and com.fasterxml.jackson.databind.node.ObjectNode are in unnamed module of loader org.gradle.internal.classloader.VisitableURLClassLoader @4a9417a8)
        at org.zalando.zally.ruleset.zalando.UseOpenApiRule.getSchemaValidators(UseOpenApiRule.kt:91)
        at org.zalando.zally.ruleset.zalando.UseOpenApiRule.<init>(UseOpenApiRule.kt:38)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
        at org.zalando.zally.core.RulesManager$Companion$fromClassLoader$3.invoke(RulesManager.kt:19)
        at org.zalando.zally.core.RulesManager$Companion$fromClassLoader$3.invoke(RulesManager.kt:10)
        at kotlin.sequences.TransformingSequence$iterator$1.next(Sequences.kt:210)
        at kotlin.sequences.SequencesKt___SequencesKt.toCollection(_Sequences.kt:786)
        at kotlin.sequences.SequencesKt___SequencesKt.toMutableList(_Sequences.kt:816)
        at kotlin.sequences.SequencesKt___SequencesKt.toList(_Sequences.kt:807)
        at org.zalando.zally.core.RulesManager$Companion.fromClassLoader(RulesManager.kt:25)
        at org.thiyagu.zally.internal.ZallyFactory.<clinit>(ZallyFactory.kt:13)
        at org.thiyagu.zally.internal.ZallyLintTask.action(ZallyLintTask.kt:29)
        .....
        .....

I believe the URL needs to changed for Swagger maybe to this ().

Also, is there a way to let the zallyLint use schema_urls.openapi3 instead of swagger?