# System.alarm.shelve throwing an error **URL:** \ **Category:** Ignition\ **Tags:** scripting\ **Created:** [October 24, 2021, 4:28pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279 "2021-10-24T16:28:27Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![nathan1](https://avatars.discourse-cdn.com/v4/letter/n/8baadc/32.png) [@nathan1](https://forum.inductiveautomation.com/u/nathan1)\ **Post date:** [October 24, 2021, 4:28pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279/1 "2021-10-24T16:28:27Z")
Hello. I'm trying to shelve an alarm via script and getting this error: > interface.GatewayException: element cannot be mapped to a null key The documentation on the alarm path is very sparse but I assume it is just the tag path? ```auto alarmPath = "[default]Devices/Device_27/*" system.alarm.shelve(path=alarmPath, timeoutMinutes=1) ``` I have tried permutations of the subtag, wildcards, etc. What am I missing? ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [October 24, 2021, 4:30pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279/2 "2021-10-24T16:30:33Z")
Can you post the full error including stack trace from the gateway logs? As for the path: > The paths may be either source paths, or display paths. Also the path argument should be a list, so wrap it in square brackets: ```auto system.alarm.shelve(path=[alarmPath], timeoutMinutes=1) ``` ---
**Author:** ![nathan1](https://avatars.discourse-cdn.com/v4/letter/n/8baadc/32.png) [@nathan1](https://forum.inductiveautomation.com/u/nathan1)\ **Post date:** [October 24, 2021, 4:32pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279/3 "2021-10-24T16:32:15Z")
```auto Java Traceback: Traceback (most recent call last): File "", line 2, in at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.newGatewayException(GatewayInterface.java:351) at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.sendMessage(GatewayInterface.java:325) at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.sendMessage(GatewayInterface.java:278) at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.invoke(GatewayInterface.java:945) at com.inductiveautomation.ignition.client.script.ClientAlarmUtilities.shelveImpl(ClientAlarmUtilities.java:55) at com.inductiveautomation.ignition.common.script.builtin.AbstractAlarmUtilities.shelve(AbstractAlarmUtilities.java:110) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) com.inductiveautomation.ignition.client.gateway_interface.GatewayException: com.inductiveautomation.ignition.client.gateway_interface.GatewayException: element cannot be mapped to a null key at org.python.core.Py.JavaError(Py.java:547) at com.inductiveautomation.ignition.common.script.builtin.AbstractAlarmUtilities.shelve(AbstractAlarmUtilities.java:112) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at org.python.core.PyReflectedFunction. __call__ (PyReflectedFunction.java:190) at com.inductiveautomation.ignition.common.script.ScriptManager$ReflectedInstanceFunction. __call__ (ScriptManager.java:540) at org.python.core.PyObject. __call__ (PyObject.java:400) at org.python.pycode._pyx1620.f$0(:2) at org.python.pycode._pyx1620.call_function() at org.python.core.PyTableCode.call(PyTableCode.java:173) at org.python.core.PyCode.call(PyCode.java:18) at org.python.core.Py.runCode(Py.java:1687) at org.python.core.Py.exec(Py.java:1731) at org.python.util.PythonInterpreter.exec(PythonInterpreter.java:277) at org.python.util.InteractiveInterpreter.runcode(InteractiveInterpreter.java:130) at com.inductiveautomation.ignition.designer.gui.tools.jythonconsole.JythonConsole$ConsoleWorker.doInBackground(JythonConsole.java:605) at com.inductiveautomation.ignition.designer.gui.tools.jythonconsole.JythonConsole$ConsoleWorker.doInBackground(JythonConsole.java:593) at java.desktop/javax.swing.SwingWorker$1.call(Unknown Source) at java.base/java.util.concurrent.FutureTask.run(Unknown Source) at java.desktop/javax.swing.SwingWorker.run(Unknown Source) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.base/java.lang.Thread.run(Unknown Source) Caused by: com.inductiveautomation.ignition.client.gateway_interface.GatewayException: element cannot be mapped to a null key at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.newGatewayException(GatewayInterface.java:351) at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.sendMessage(GatewayInterface.java:325) at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.sendMessage(GatewayInterface.java:278) at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.invoke(GatewayInterface.java:945) at com.inductiveautomation.ignition.client.script.ClientAlarmUtilities.shelveImpl(ClientAlarmUtilities.java:55) at com.inductiveautomation.ignition.common.script.builtin.AbstractAlarmUtilities.shelve(AbstractAlarmUtilities.java:110) ... 23 more Caused by: java.lang.NullPointerException: element cannot be mapped to a null key at java.util.Objects.requireNonNull(null) at java.util.stream.Collectors.lambda$groupingBy$53(null) at java.util.stream.ReduceOps$3ReducingSink.accept(null) at java.util.stream.ReferencePipeline$3$1.accept(null) at java.util.stream.ReferencePipeline$2$1.accept(null) at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(null) at java.util.stream.AbstractPipeline.copyInto(null) at java.util.stream.AbstractPipeline.wrapAndCopyInto(null) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(null) at java.util.stream.AbstractPipeline.evaluate(null) at java.util.stream.ReferencePipeline.collect(null) at com.inductiveautomation.ignition.gateway.alarming.AlarmManagerImpl.shelve(AlarmManagerImpl.java:302) at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.Alarming.shelve(Alarming.java:79) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(null) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(null) at java.lang.reflect.Method.invoke(null) at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:225) at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:405) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:86) at org.eclipse.jetty.servlet.ServletHolder$NotAsyncServlet.service(ServletHolder.java:1391) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:760) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:547) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:590) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1607) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1297) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:485) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1577) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1212) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:322) at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:59) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.Server.handle(Server.java:500) at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:270) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:388) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938) at java.lang.Thread.run(null) Traceback (most recent call last): File "", line 2, in at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.newGatewayException(GatewayInterface.java:351) at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.sendMessage(GatewayInterface.java:325) at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.sendMessage(GatewayInterface.java:278) at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.invoke(GatewayInterface.java:945) at com.inductiveautomation.ignition.client.script.ClientAlarmUtilities.shelveImpl(ClientAlarmUtilities.java:55) at com.inductiveautomation.ignition.common.script.builtin.AbstractAlarmUtilities.shelve(AbstractAlarmUtilities.java:110) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) com.inductiveautomation.ignition.client.gateway_interface.GatewayException: com.inductiveautomation.ignition.client.gateway_interface.GatewayException: element cannot be mapped to a null key ``` ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [October 24, 2021, 4:33pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279/4 "2021-10-24T16:33:45Z")
What version of Ignition is this? ---
**Author:** ![nathan1](https://avatars.discourse-cdn.com/v4/letter/n/8baadc/32.png) [@nathan1](https://forum.inductiveautomation.com/u/nathan1)\ **Post date:** [October 24, 2021, 4:34pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279/5 "2021-10-24T16:34:28Z")
Thanks for the reply Kevin. I am running 8.1.9 ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [October 24, 2021, 4:37pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279/6 "2021-10-24T16:37:02Z")
I’ll have to look closer at this tomorrow. Seems like a nasty error for what’s probably just a path that doesn’t lead to any alarms or something like that. ---
**Author:** ![nathan1](https://avatars.discourse-cdn.com/v4/letter/n/8baadc/32.png) [@nathan1](https://forum.inductiveautomation.com/u/nathan1)\ **Post date:** [October 24, 2021, 4:37pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279/7 "2021-10-24T16:37:43Z")
Okay, thanks for checking. I get the same error when passing the path as a list. There is a current alarm on the tag that I am testing also. ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [October 24, 2021, 4:39pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279/8 "2021-10-24T16:39:31Z")
For now try using alarm display paths in your path argument. Looks like you’re trying to use source but maybe the syntax isn’t what is expected. ---
**Author:** ![nathan1](https://avatars.discourse-cdn.com/v4/letter/n/8baadc/32.png) [@nathan1](https://forum.inductiveautomation.com/u/nathan1)\ **Post date:** [October 25, 2021, 2:51pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279/9 "2021-10-25T14:51:02Z")
Unfortunately I get the same error when using the display path. I initially thought it may be related to the tag be a Reference tag but I got the same error on a memory tag. ---
**Author:** ![nathan1](https://avatars.discourse-cdn.com/v4/letter/n/8baadc/32.png) [@nathan1](https://forum.inductiveautomation.com/u/nathan1)\ **Post date:** [October 26, 2021, 1:55pm UTC](https://forum.inductiveautomation.com/t/system-alarm-shelve-throwing-an-error/52279/10 "2021-10-26T13:55:48Z")
I got it working. It was indeed the format of the source as you suspected. Once I queried the alarms it became apparent. I think the documentation could definitely use some love though. There is no mention of the this format. Thanks for pointing me in the right direction. `system.alarm.shelve(path=['prov:default:/tag:Devices/Device_25/main_alarm:/alm:MainAlarm'], timeoutSeconds=60)`