Update instrumentation/cloudfoundry/cloudfoundry-resources/library/src/main/java/io/opentelemetry/javaagent/instrumentation/cloudfoundry/resources/CloudFoundryResource.java

Co-authored-by: jason plumb <[email protected]>

Author: KarstenSchnitter

instrumentation/cloudfoundry/cloudfoundry-resources/library/src/main/java/io/opentelemetry/javaagent/instrumentation/cloudfoundry/resources/CloudFoundryResource.java

@@ -70,7 +70,7 @@ static Resource buildResource(Function<String, String> getenv) {
 
   private static class CloudFoundryAttributesBuilder {
     private final AttributesBuilder builder = Attributes.builder();
-    private Map<String, Object> parsedData;
+    private final Map<String, Object> parsedData;
 
     @SuppressWarnings("unchecked")
     private CloudFoundryAttributesBuilder(String rawData) {