bug: protect against null context (#1963)

* bug: protect against null context

this is an scenario you could face in testing.

* Revert "fix(deps): update aws-java-sdk-v2 monorepo to v2.21.29 (#1930)"

This reverts commit e1193d0.

Author: sdelamo

aws-apigateway/src/main/java/io/micronaut/aws/apigateway/HttpRequestStageResolver.java

@@ -38,9 +38,9 @@ public class HttpRequestStageResolver implements StageResolver<HttpRequest<?>> {
     public Optional<String> resolve(@NonNull HttpRequest<?> request) {
         if (request instanceof ServletHttpRequest servletHttpRequest) {
             Object nativeRequest = servletHttpRequest.getNativeRequest();
-            if (nativeRequest instanceof APIGatewayV2HTTPEvent aPIGatewayV2HTTPEvent) {
+            if (nativeRequest instanceof APIGatewayV2HTTPEvent aPIGatewayV2HTTPEvent && aPIGatewayV2HTTPEvent.getRequestContext() != null) {
                 return Optional.of(aPIGatewayV2HTTPEvent.getRequestContext().getStage());
-            } else if (nativeRequest instanceof APIGatewayProxyRequestEvent apiGatewayProxyRequestEvent) {
+            } else if (nativeRequest instanceof APIGatewayProxyRequestEvent apiGatewayProxyRequestEvent && apiGatewayProxyRequestEvent.getRequestContext() != null) {
                 return Optional.of(apiGatewayProxyRequestEvent.getRequestContext().getStage());
             }
         }

aws-apigateway/src/test/groovy/io/micronaut/aws/apigateway/HttpRequestStageResolverSpec.groovy

@@ -23,6 +23,19 @@ class HttpRequestStageResolverSpec extends Specification {
         'foo' == resolver.resolve(request).get()
     }
 
+    void "no npe if no context"() {
+        HttpRequestStageResolver resolver = new HttpRequestStageResolver()
+        def proxyRequestStub = Stub(APIGatewayV2HTTPEvent) {
+            getRequestContext() >> null
+        }
+        def request = Stub(ServletHttpRequest) {
+            getNativeRequest() >> proxyRequestStub
+        }
+
+        expect:
+        resolver.resolve(request).isEmpty()
+    }
+
     void "resolve stage from HttpRequest"() {
         given:
         HttpRequestStageResolver resolver = new HttpRequestStageResolver()

gradle/libs.versions.toml

@@ -25,7 +25,7 @@ micronaut-validation = "4.2.0"
 
 managed-alexa-ask-sdk = "2.86.0"
 managed-aws-java-sdk-v1 = '1.12.595'
-managed-aws-java-sdk-v2 = '2.21.29'
+managed-aws-java-sdk-v2 = '2.20.162'
 managed-aws-lambda = '1.2.3'
 managed-aws-lambda-events = '3.11.3'
 managed-aws-lambda-java-serialization = '1.1.4'