I am getting the following error. I have populated nifi.properties and bootstrap.conf using configmaps as mentioned below ------- 2025-02-11 06:48:50,240 ERROR [main] org.apache.nifi.runtime.Application Start Server failed java.lang.IllegalStateException: Application Properties loading failed at org.apache.nifi.runtime.PropertiesProvider.readProperties(PropertiesProvider.java:65) at org.apache.nifi.runtime.Application.startServer(Application.java:121) at org.apache.nifi.runtime.Application.run(Application.java:78) at org.apache.nifi.runtime.Application.run(Application.java:60) at org.apache.nifi.NiFi.main(NiFi.java:42) Caused by: java.lang.reflect.InvocationTargetException: null at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:115) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at org.apache.nifi.runtime.PropertiesProvider.readProperties(PropertiesProvider.java:63) ... 4 common frames omitted Caused by: java.lang.NullPointerException: Cannot invoke "java.io.File.exists()" because "flowConfigurationFile" is null at org.apache.nifi.properties.NiFiPropertiesLoader.getDefaultProperties(NiFiPropertiesLoader.java:157) at org.apache.nifi.properties.NiFiPropertiesLoader.get(NiFiPropertiesLoader.java:138) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ... 6 common frames omitted 2025-02-11 06:48:50,243 WARN [main] org.apache.nifi.web.server.JettyServer Failed to stop Server java.lang.NullPointerException: Cannot invoke "org.eclipse.jetty.server.Server.stop()" because "this.server" is null at org.apache.nifi.web.server.JettyServer.stop(JettyServer.java:1000) at org.apache.nifi.runtime.Application.run(Application.java:81) at org.apache.nifi.runtime.Application.run(Application.java:60) at org.apache.nifi.NiFi.main(NiFi.java:42) ----- Using apache nifi version - NiFi 2.2.0 attaching my sample  deployment file ------ containers: - image: nifi_2.2.0:v1 imagePullPolicy: IfNotPresent name: nifi ports: - containerPort: 8080 protocol: TCP resources: limits: cpu: 1500m memory: 4Gi requests: cpu: 750m memory: 2Gi terminationMessagePath: /dev/termination-log terminationMessagePolicy: File volumeMounts: - mountPath: /opt/nifi/nifi-current/conf/nifi.properties name: config-volume subPath: nifi.properties - mountPath: /opt/nifi/nifi-current/conf/bootstrap.conf name: config-volume subPath: bootstrap.conf - mountPath: /opt/nifi/nifi-current/flowfile_repository name: nifi-flowfile - mountPath: /opt/nifi/nifi-current/logs name: nifi-logs volumes: - name: nifi-flowfile persistentVolumeClaim: claimName: nifi-flowfile-pvc - emptyDir: {} name: nifi-logs - emptyDir: {} name: nifi-conf - configMap: defaultMode: 420 name: nifi-config name: config-volume ----- my configmap apiVersion: v1 data: bootstrap.conf: | java.arg.1=-Xms512m java.arg.2=-Xmx2g nifi.bootstrap.class=org.apache.nifi.bootstrap.BootstrapProcess nifi.properties: | nifi.web.http.port=8080 nifi.remote.input.host=nifi-cluster nifi.remote.input.secure=false nifi.remote.input.socket.port=10000 nifi.zookeeper.connect.string=zookeeper:2181 nifi.nar.library.directory=/opt/nifi/nifi-current/lib kind: ConfigMap metadata:      name: nifi-config      namespace: nifi-ns -----   ... View more