Appdynamics / Appdynamics/SQLMonitor

java.lang.NullPointerException: null

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Dominant language
Java
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Description

Monitor initialization fails with below exception.
Please advise on the fix

```
[Agent-Monitor-Scheduler-1] 11 Aug 2022 18:28:51,220 ERROR SQLMonitor - Error while creating task for dbServer
java.lang.NullPointerException: null
at com.appdynamics.extensions.sql.SQLMonitor.getConnectionProperties(SQLMonitor.java:113) ~[?:?]
at com.appdynamics.extensions.sql.SQLMonitor.createTask(SQLMonitor.java:81) ~[?:?]
at com.appdynamics.extensions.sql.SQLMonitor.doRun(SQLMonitor.java:49) [?:?]
at com.appdynamics.extensions.AMonitorJob.run(AMonitorJob.java:50) [?:?]
at com.appdynamics.extensions.ABaseMonitor.executeMonitor(ABaseMonitor.java:199) [?:?]
at com.appdynamics.extensions.ABaseMonitor.execute(ABaseMonitor.java:187) [?:?]
at com.singularity.ee.agent.systemagent.components.monitormanager.managed.MonitorTaskRunner.runTask(MonitorTaskRunner.java:149) [machineagent.jar:Machine Agent v21.12.6-3236 GA compatible with 4.4.1.0 Build Date 2022-01-15 06:37:49]
at com.singularity.ee.agent.systemagent.components.monitormanager.managed.PeriodicTaskRunner.runTask(PeriodicTaskRunner.java:86) [machineagent.jar:Machine Agent v21.12.6-3236 GA compatible with 4.4.1.0 Build Date 2022-01-15 06:37:49]
at com.singularity.ee.agent.systemagent.components.monitormanager.managed.PeriodicTaskRunner.run(PeriodicTaskRunner.java:47) [machineagent.jar:Machine Agent v21.12.6-3236 GA compatible with 4.4.1.0 Build Date 2022-01-15 06:37:49]
at com.singularity.ee.util.javaspecific.scheduler.AgentScheduledExecutorServiceImpl$SafeRunnable.run(AgentScheduledExecutorServiceImpl.java:122) [agent-21.1.0-2340.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_292]
at com.singularity.ee.util.javaspecific.scheduler.ADFutureTask$Sync.innerRunAndReset(ADFutureTask.java:335) [agent-21.1.0-2340.jar:?]
at com.singularity.ee.util.javaspecific.scheduler.ADFutureTask.runAndReset(ADFutureTask.java:152) [agent-21.1.0-2340.jar:?]
at com.singularity.ee.util.javaspecific.scheduler.ADScheduledThreadPoolExecutor$ADScheduledFutureTask.access$101(ADScheduledThreadPoolExecutor.java:119) [agent-21.1.0-2340.jar:?]
at com.singularity.ee.util.javaspecific.scheduler.ADScheduledThreadPoolExecutor$ADScheduledFutureTask.runPeriodic(ADScheduledThreadPoolExecutor.java:206) [agent-21.1.0-2340.jar:?]
at com.singularity.ee.util.javaspecific.scheduler.ADScheduledThreadPoolExecutor$ADScheduledFutureTask.run(ADScheduledThreadPoolExecutor.java:236) [agent-21.1.0-2340.jar:?]
at com.singularity.ee.util.javaspecific.scheduler.ADThreadPoolExecutor$Worker.runTask(ADThreadPoolExecutor.java:694) [agent-21.1.0-2340.jar:?]
at com.singularity.ee.util.javaspecific.scheduler.ADThreadPoolExecutor$Worker.run(ADThreadPoolExecutor.java:726) [agent-21.1.0-2340.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_292]

```

Contributor guide

No contributing guide indexed for this repository

Research direction

Start in SQLMonitor.java at getConnectionProperties(SQLMonitor.java:113), then follow createTask at line 81 and doRun at line 49 using the supplied initialization stack trace. Identify which configuration or connection value is null and verify that monitor initialization completes without this exception; no test or reproduction setup is named in the issue.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, sql
Domain
databases
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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