AWS Inspector client does not build the request correctly

[javaduke]

Describe the bug

My test code is very simple:

InspectorClient inspectorClient = InspectorClient.builder()
                .region(Region.US_WEST_2)
                .httpClientBuilder(
                    ApacheHttpClient.builder()
                )
                .build();

        ListFindingsRequest request = ListFindingsRequest.builder().build();
        ListFindingsResponse response = inspectorClient.listFindings(request);

When I run it, it returns no errors, bu the list of ARNs is empty. It does return pagination token though. I enabled HTTP wire logging to see what actually gets sent to the AWS and found that it sends an empty HTTTP POST request to the / URI and the response is 200 with empty body. Here's what it looks like:

software.amazon.awssdk.request: Sending Request: DefaultSdkHttpFullRequest(httpMethod=POST, protocol=https, host=inspector.us-west-2.amazonaws.com, encodedPath=/, headers=[amz-sdk-invocation-id, Content-Length, Content-Type, User-Agent, X-Amz-Target], queryParameters=[])    
DEBUG org.apache.http.client.protocol.RequestAddCookies: CookieSpec selected: default    
DEBUG org.apache.http.client.protocol.RequestAuthCache: Auth cache not set in the context    
DEBUG org.apache.http.wire: http-outgoing-0 >> "POST / HTTP/1.1[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "Host: inspector.us-west-2.amazonaws.com[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "amz-sdk-invocation-id: e7f4d1b1-93cb-b4d4-fbac-6435d97e7501[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "amz-sdk-request: attempt=1; max=4[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "Authorization: xxxxx[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "User-Agent: aws-sdk-java/2.24.9 Mac_OS_X/14.4.1 Java_HotSpot_TM__64-Bit_Server_VM/21.0.1+12-jvmci-23.1-b19 Java/21.0.1 scala/2.13.13 vendor/Oracle_Corporation io/sync http/Apache cfg/retry-mode/legacy[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "x-amz-content-sha256: 44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "X-Amz-Date: 20240426T171534Z[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "X-Amz-Target: InspectorService.ListFindings[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "Content-Length: 2[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "Connection: Keep-Alive[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 >> "{}"    
DEBUG org.apache.http.wire: http-outgoing-0 << "HTTP/1.1 200 OK[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 << "x-amzn-RequestId: 08cbf55c-7ea2-4d10-aa77-c19d93b5bac9[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 << "Content-Type: application/x-amz-json-1.1[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 << "Content-Length: 141[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 << "Date: Fri, 26 Apr 2024 17:15:34 GMT[\r][\n]"    
DEBUG org.apache.http.wire: http-outgoing-0 << "[\r][\n]"    
DEBUG software.amazon.awssdk.request: Received successful response: 200, Request ID: 08cbf55c-7ea2-4d10-aa77-c19d93b5bac9, Extended Request ID: not available    
DEBUG org.apache.http.wire: http-outgoing-0 << "{"findingArns":[],"nextToken":"AAIAAWWZlFboDDHZ0M4iqcEvTrRoQCk1rhPwNfQYIiVPIjXpqWVNuwxopbSUUMHzSGdcWEtccHtfl4OWQBxI820saB7_iBKNot1hp76WUQ=="}"    

Expected Behavior

I expected the call to return list of ARNs.

Current Behavior

The list of ARNs is empty.

Reproduction Steps

InspectorClient inspectorClient = InspectorClient.builder()
                .credentialsProvider(portXAWSCredentialsProvider)
                .region(Region.US_WEST_2)
                .httpClientBuilder(
                    ApacheHttpClient.builder()
                )
                .build();

ListFindingsRequest request = ListFindingsRequest.builder().build();
ListFindingsResponse response = inspectorClient.listFindings(request);

Possible Solution

No response

Additional Information/Context

No response

AWS Java SDK version used

2.25.38

JDK version used

java version "21.0.1" 2023-10-17 Java(TM) SE Runtime Environment Oracle GraalVM 21.0.1+12.1 (build 21.0.1+12-jvmci-23.1-b19) Java HotSpot(TM) 64-Bit Server VM Oracle GraalVM 21.0.1+12.1 (build 21.0.1+12-jvmci-23.1-b19, mixed mode, sharing)

Operating System and version

macOS 14.4.1

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