Fix: [AEA-6305] - Fix validator to properly validate cpt api style fhir messages (#476)

## Summary
- Routine Change

### Details
Fixes validator logic to enable it to properly validate cpt api style
fhir messages

---------

Co-authored-by: MatthewPopat-NHS <95283781+MatthewPopat-NHS@users.noreply.github.com>

Author: Orkastrated

.trivyignore

@@ -18,6 +18,7 @@ CVE-2021-35515
 CVE-2021-35516
 CVE-2021-35517
 CVE-2021-36090
+CVE-2026-33180
 # upgrading fasterxml-core to fixed version 2.21.1 appears to not
 # be compatible with 2.19.2 of fasterxml-annotations
 GHSA-72hv-8253-57qq

src/main/java/software/nhs/fhirvalidator/controller/ValidateController.java

@@ -11,7 +11,6 @@
 import org.hl7.fhir.instance.model.api.IBaseResource;
 import org.hl7.fhir.r4.model.Bundle;
 import org.hl7.fhir.r4.model.OperationOutcome;
-import org.hl7.fhir.r4.model.ResourceType;
 import org.hl7.fhir.r4.model.OperationOutcome.OperationOutcomeIssueComponent;
 
 import ca.uhn.fhir.context.FhirContext;
@@ -80,7 +79,8 @@ public OperationOutcome parseAndValidateResource(String input) {
                 | DataFormatException e) {
             log.error(e.toString());
             return OperationOutcomeUtils
-                    .createOperationOutcome(e.getMessage() != null ? e.getMessage() : "Invalid JSON", null);
+                    .createOperationOutcome((e.getMessage() != null && !(e instanceof NullPointerException))
+                    ? e.getMessage() : "Invalid JSON", null);
         }
     }
 
@@ -101,15 +101,10 @@ private List<IBaseResource> getResourcesToValidate(IBaseResource inputResource)
         if (inputResource instanceof Bundle _inputResource && (_inputResource.getType() == Bundle.BundleType.SEARCHSET)) {
             List<IBaseResource> bundleResources = new ArrayList<>();
             for (Bundle.BundleEntryComponent entry : ((Bundle) inputResource).getEntry()) {
-                if (entry.getResource().fhirType().equals("Bundle")) {
-                    bundleResources.add(entry.getResource());
-                }
+                bundleResources.add(entry.getResource());
             }
 
-            if (bundleResources.stream()
-                    .allMatch(resource -> ((Bundle) resource).getResourceType() == ResourceType.Bundle)) {
-                return bundleResources;
-            }
+            return bundleResources;
         }
 
         return Arrays.asList(inputResource);

src/test/resources/results/searchSet.json

@@ -2391,6 +2391,44 @@
                 "Bundle.entry[4].resource/*Organization/154dcc4a-0006-4272-9758-9dcb8d95ce8b*/",
                 "Line[1] Col[3089]"
             ]
+        },
+        {
+            "extension": [
+                {
+                "url": "http://hl7.org/fhir/StructureDefinition/operationoutcome-issue-line",
+                "valueInteger": 1
+                },
+                {
+                "url": "http://hl7.org/fhir/StructureDefinition/operationoutcome-issue-col",
+                "valueInteger": 496
+                }
+            ],
+            "severity": "warning",
+            "code": "processing",
+            "diagnostics": "Constraint failed: dom-6: 'A resource should have narrative for robust management' (defined in http://hl7.org/fhir/StructureDefinition/DomainResource) (Best Practice Recommendation)",
+            "location": [
+                "OperationOutcome",
+                "Line[1] Col[496]"
+            ]
+        },
+        {
+            "extension": [
+                {
+                    "url": "http://hl7.org/fhir/StructureDefinition/operationoutcome-issue-line",
+                    "valueInteger": 1
+                },
+                {
+                    "url": "http://hl7.org/fhir/StructureDefinition/operationoutcome-issue-col",
+                    "valueInteger": 496
+                }
+            ],
+            "severity": "warning",
+            "code": "processing",
+            "diagnostics": "Constraint failed: dom-6: 'A resource should have narrative for robust management' (defined in http://hl7.org/fhir/StructureDefinition/DomainResource) (Best Practice Recommendation)",
+            "location": [
+                "OperationOutcome",
+                "Line[1] Col[496]"
+            ]
         }
     ]
 }