NPE in the AnalyticsMetricsHandler when invoking unavailable method

[Methma]

Description

The following NPE is thrown when invoke an unavailable resource when Analytics is enabled.

ERROR - AnalyticsMetricsHandler Error Occurred when collecting data
java.lang.NullPointerException: null
	at org.wso2.carbon.apimgt.gateway.handlers.analytics.SynapseAnalyticsDataProvider.getBackendLatency_aroundBody54(SynapseAnalyticsDataProvider.java:404) ~[org.wso2.carbon.apimgt.gateway_9.20.74.300.jar:?]
	at org.wso2.carbon.apimgt.gateway.handlers.analytics.SynapseAnalyticsDataProvider.getBackendLatency(SynapseAnalyticsDataProvider.java:399) ~[org.wso2.carbon.apimgt.gateway_9.20.74.300.jar:?]
	at org.wso2.carbon.apimgt.gateway.handlers.analytics.SynapseAnalyticsDataProvider.getLatencies_aroundBody18(SynapseAnalyticsDataProvider.java:217) ~[org.wso2.carbon.apimgt.gateway_9.20.74.300.jar:?]
	at org.wso2.carbon.apimgt.gateway.handlers.analytics.SynapseAnalyticsDataProvider.getLatencies(SynapseAnalyticsDataProvider.java:215) ~[org.wso2.carbon.apimgt.gateway_9.20.74.300.jar:?]
	at org.wso2.carbon.apimgt.common.analytics.collectors.impl.SuccessRequestDataCollector.collectData(SuccessRequestDataCollector.java:71) ~[org.wso2.carbon.apimgt.common.analytics_9.20.74.289.jar:?]
	at org.wso2.carbon.apimgt.common.analytics.collectors.impl.GenericRequestDataCollector.collectData(GenericRequestDataCollector.java:46) ~[org.wso2.carbon.apimgt.common.analytics_9.20.74.289.jar:?]
	at org.wso2.carbon.apimgt.gateway.handlers.analytics.AnalyticsMetricsHandler.handleResponseOutFlow_aroundBody8(AnalyticsMetricsHandler.java:95) ~[org.wso2.carbon.apimgt.gateway_9.20.74.300.jar:?]
	at org.wso2.carbon.apimgt.gateway.handlers.analytics.AnalyticsMetricsHandler.handleResponseOutFlow(AnalyticsMetricsHandler.java:81) ~[org.wso2.carbon.apimgt.gateway_9.20.74.300.jar:?]
	at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:188) ~[synapse-core_2.1.7.wso2v271_66.jar:2.1.7-wso2v271.66] 

To reproduce,

1. Enable Analytics

[apim.analytics]
enable = true
type = "elk"

2. Create an API having few methods
3. Invoke an unavailable method

Thanks
Methma

Steps to Reproduce

Invoke an resource having mediations after enabling analytics.

Affected Component

APIM

Version

4.1.0

Environment Details (with versions)

No response

Relevant Log Output

No response

Related Issues

No response

Suggested Labels

No response