NPE Error on API invocation

[BLasan]

Description

When invoking a rest API with analytics enabled, NPE error is thrown from the API Manager.

[2024-08-17 10:28:17,969] ERROR - AnalyticsMetricsHandler Error Occurred when collecting data
java.lang.NullPointerException: null
	at org.wso2.carbon.apimgt.common.analytics.publishers.impl.AnalyticsDataPublisher.getSuccessMetricReporters(AnalyticsDataPublisher.java:160) ~[org.wso2.carbon.apimgt.common.analytics_9.29.189.SNAPSHOT.jar:?]
	at org.wso2.carbon.apimgt.common.analytics.publishers.impl.SuccessRequestDataPublisher.getMultipleCounterMetrics(SuccessRequestDataPublisher.java:42) ~[org.wso2.carbon.apimgt.common.analytics_9.29.189.SNAPSHOT.jar:?]
	at org.wso2.carbon.apimgt.common.analytics.publishers.impl.AbstractRequestDataPublisher.publish(AbstractRequestDataPublisher.java:47) ~[org.wso2.carbon.apimgt.common.analytics_9.29.189.SNAPSHOT.jar:?]
	at org.wso2.carbon.apimgt.common.analytics.collectors.impl.SuccessRequestDataCollector.collectData(SuccessRequestDataCollector.java:145) ~[org.wso2.carbon.apimgt.common.analytics_9.29.189.SNAPSHOT.jar:?]
	at org.wso2.carbon.apimgt.common.analytics.collectors.impl.GenericRequestDataCollector.collectData(GenericRequestDataCollector.java:46) ~[org.wso2.carbon.apimgt.common.analytics_9.29.189.SNAPSHOT.jar:?]
	at org.wso2.carbon.apimgt.gateway.handlers.analytics.AnalyticsMetricsHandler.handleResponseOutFlow_aroundBody8(AnalyticsMetricsHandler.java:95) ~[org.wso2.carbon.apimgt.gateway_9.29.189.SNAPSHOT.jar:?]
	at org.wso2.carbon.apimgt.gateway.handlers.analytics.AnalyticsMetricsHandler.handleResponseOutFlow(AnalyticsMetricsHandler.java:1) ~[org.wso2.carbon.apimgt.gateway_9.29.189.SNAPSHOT.jar:?]
	at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:191) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:578) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:123) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:126) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:74) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:158) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.api.Resource.process(Resource.java:338) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.api.API.process(API.java:420) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.api.AbstractApiHandler.apiProcessNonDefaultStrategy(AbstractApiHandler.java:109) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.api.AbstractApiHandler.identifyAPI(AbstractApiHandler.java:129) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.api.AbstractApiHandler.dispatchToAPI(AbstractApiHandler.java:54) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.api.rest.RestRequestHandler.dispatchToAPI(RestRequestHandler.java:90) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.api.rest.RestRequestHandler.process(RestRequestHandler.java:63) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:54) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:350) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:647) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:218) ~[synapse-core_4.0.0.wso2v105.jar:4.0.0-wso2v105]
	at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) ~[axis2_1.6.1.wso2v76.jar:?]
	at org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:339) ~[synapse-nhttp-transport_4.0.0.wso2v105.jar:?]
	at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172) ~[axis2_1.6.1.wso2v76.jar:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[?:?]
	at java.lang.Thread.run(Thread.java:829) ~[?:?]

Steps to Reproduce

1. Enable analytics from the deployment.toml file
2. Create an API, deploy and publish
3. Invoke the API. You can see the aforementioned error log on the console

Affected Component

APIM

Version

4.4.x

Environment Details (with versions)

No response

Relevant Log Output

No response

Related Issues

No response

Suggested Labels

No response