[ 
https://issues.apache.org/jira/browse/BROOKLYN-349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15510712#comment-15510712
 ] 

ASF GitHub Bot commented on BROOKLYN-349:
-----------------------------------------

Github user ahgittin commented on the issue:

    https://github.com/apache/brooklyn-server/pull/341
  
    Can we merge #340 and then look at this?  It gives clearer methods for 
dealing with semantics of copying resolved / unresolved semantics, and it moves 
`Location`'s config to be treated like others.  Many of your changes here can 
still work but some may need changing to fit with how it works.
    
    In particular note that with #340 the `ConfigBag` exposed by 
`AbstractLocation` is an RO view.  (Not sure if that matters.)


> NPE using yaml DSL in entity's "provisioning.properties"
> --------------------------------------------------------
>
>                 Key: BROOKLYN-349
>                 URL: https://issues.apache.org/jira/browse/BROOKLYN-349
>             Project: Brooklyn
>          Issue Type: Bug
>            Reporter: Aled Sage
>
> Using Brooklyn 0.10.0-SNAPSHOT...
> Some usage of the brooklyn DSL within an entity's "provisioning.properties" 
> config fails. This is because it fails to find the entity in context.
> Therefore a config value like {{$brooklyn:config(\"password\")}} will fail 
> (but yaml like {{$brooklyn:external(\"creds\", \"test-identity\")}} should be 
> ok, because that does not need to resolve the entity).
> As an example, add the following catalog item and then deploy the given app:
> {noformat}
> brooklyn.catalog:
>   id: example-entity
>   version: "0.1.2"
>   itemType: entity
>   item:",
>     brooklyn.parameters:
>     - name: password
>       default: myYamlPassword
>     type: org.apache.brooklyn.entity.software.base.EmptySoftwareProcess
> location:
>   jclouds:softlayer:
>     waitForSshable: false
>     useJcloudsSshInit: false
> services:\n"+
> - type: example-entity
>   brooklyn.config:
>     onbox.base.dir.skipResolution: true
>     sshMonitoring.enabled: false
>     provisioning.properties:
>       password: $brooklyn:config("password")
> #      password: $brooklyn:external("creds", "test-password")
> {noformat}
> This fails with an NPE:
> {noformat}
> java.util.concurrent.ExecutionException: 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils$EffectorCallPropagatedRuntimeException:
>  Error invoking start at BasicApplicationImpl{id=wsufdg642b}: Error invoking 
> start at EmptySoftwareProcessImpl{id=j8rtiy99gr}: Error resolving 
> config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
>       at java.util.concurrent.FutureTask.get(FutureTask.java:188)
>       at 
> com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:63)
>       at org.apache.brooklyn.util.core.task.BasicTask.get(BasicTask.java:361)
>       at 
> org.apache.brooklyn.camp.brooklyn.JcloudsRebindWithYamlDslTest.newJcloudsLocation(JcloudsRebindWithYamlDslTest.java:163)
>       at 
> org.apache.brooklyn.location.jclouds.JcloudsRebindStubTest.testRebind(JcloudsRebindStubTest.java:193)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:606)
>       at 
> org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
>       at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
>       at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
>       at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
>       at 
> org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
>       at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
>       at org.testng.TestRunner.privateRun(TestRunner.java:767)
>       at org.testng.TestRunner.run(TestRunner.java:617)
>       at org.testng.SuiteRunner.runTest(SuiteRunner.java:348)
>       at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:343)
>       at org.testng.SuiteRunner.privateRun(SuiteRunner.java:305)
>       at org.testng.SuiteRunner.run(SuiteRunner.java:254)
>       at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
>       at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
>       at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
>       at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
>       at org.testng.TestNG.run(TestNG.java:1057)
>       at 
> org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:126)
>       at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:152)
>       at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:57)
> Caused by: 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils$EffectorCallPropagatedRuntimeException:
>  Error invoking start at BasicApplicationImpl{id=wsufdg642b}: Error invoking 
> start at EmptySoftwareProcessImpl{id=j8rtiy99gr}: Error resolving 
> config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils$EffectorCallPropagatedRuntimeException.propagate(EffectorUtils.java:318)
>       at 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils$EffectorCallPropagatedRuntimeException.access$0(EffectorUtils.java:311)
>       at 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils.handleEffectorException(EffectorUtils.java:326)
>       at 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils.invokeMethodEffector(EffectorUtils.java:281)
>       at 
> org.apache.brooklyn.core.effector.MethodEffector.call(MethodEffector.java:148)
>       at 
> org.apache.brooklyn.core.entity.trait.Startable$StartEffectorBody.call(Startable.java:56)
>       at 
> org.apache.brooklyn.core.entity.trait.Startable$StartEffectorBody.call(Startable.java:1)
>       at 
> org.apache.brooklyn.core.effector.EffectorTasks$EffectorBodyTaskFactory$1.call(EffectorTasks.java:82)
>       at 
> org.apache.brooklyn.util.core.task.DynamicSequentialTask$DstJob.call(DynamicSequentialTask.java:359)
>       at 
> org.apache.brooklyn.util.core.task.BasicExecutionManager$SubmissionCallable.call(BasicExecutionManager.java:519)
>       at java.util.concurrent.FutureTask.run(FutureTask.java:262)
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>       at java.lang.Thread.run(Thread.java:745)
> Caused by: java.util.concurrent.ExecutionException: 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: Error 
> invoking start at EmptySoftwareProcessImpl{id=j8rtiy99gr}: Error resolving 
> config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at 
> org.apache.brooklyn.core.mgmt.internal.AbstractManagementContext.invokeEffectorMethodSync(AbstractManagementContext.java:343)
>       at 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils.invokeMethodEffector(EffectorUtils.java:276)
>       ... 10 more
> Caused by: org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> Error invoking start at EmptySoftwareProcessImpl{id=j8rtiy99gr}: Error 
> resolving config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at 
> org.apache.brooklyn.util.exceptions.Exceptions.propagate(Exceptions.java:129)
>       at 
> org.apache.brooklyn.util.core.task.BasicTask.getUnchecked(BasicTask.java:372)
>       at 
> org.apache.brooklyn.core.entity.trait.StartableMethods.start(StartableMethods.java:53)
>       at 
> org.apache.brooklyn.core.entity.AbstractApplication.doStart(AbstractApplication.java:179)
>       at 
> org.apache.brooklyn.core.entity.AbstractApplication.start(AbstractApplication.java:154)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:606)
>       at 
> org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
>       at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
>       at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)
>       at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1016)
>       at 
> groovy.lang.DelegatingMetaClass.invokeMethod(DelegatingMetaClass.java:149)
>       at groovy.lang.MetaObjectProtocol$invokeMethod.call(Unknown Source)
>       at 
> org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
>       at 
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
>       at 
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
>       at 
> org.apache.brooklyn.util.groovy.GroovyJavaMethods.invokeMethodOnMetaClass(GroovyJavaMethods.java:191)
>       at 
> org.apache.brooklyn.core.mgmt.internal.AbstractManagementContext.invokeEffectorMethodLocal(AbstractManagementContext.java:315)
>       at 
> org.apache.brooklyn.core.mgmt.internal.AbstractManagementContext.invokeEffectorMethodSync(AbstractManagementContext.java:339)
>       ... 11 more
> Caused by: java.util.concurrent.ExecutionException: 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: Error 
> invoking start at EmptySoftwareProcessImpl{id=j8rtiy99gr}: Error resolving 
> config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
>       at java.util.concurrent.FutureTask.get(FutureTask.java:188)
>       at 
> com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:63)
>       at org.apache.brooklyn.util.core.task.BasicTask.get(BasicTask.java:361)
>       at 
> org.apache.brooklyn.util.core.task.BasicTask.getUnchecked(BasicTask.java:370)
>       ... 30 more
> Caused by: org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> Error invoking start at EmptySoftwareProcessImpl{id=j8rtiy99gr}: Error 
> resolving config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at 
> org.apache.brooklyn.util.exceptions.Exceptions.propagate(Exceptions.java:129)
>       at 
> org.apache.brooklyn.util.core.task.ParallelTask.runJobs(ParallelTask.java:80)
>       at 
> org.apache.brooklyn.util.core.task.CompoundTask$1.call(CompoundTask.java:81)
>       at 
> org.apache.brooklyn.util.core.task.CompoundTask$1.call(CompoundTask.java:1)
>       ... 5 more
> Caused by: java.util.concurrent.ExecutionException: 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils$EffectorCallPropagatedRuntimeException:
>  Error invoking start at EmptySoftwareProcessImpl{id=j8rtiy99gr}: Error 
> resolving config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
>       at java.util.concurrent.FutureTask.get(FutureTask.java:188)
>       at 
> com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:63)
>       at org.apache.brooklyn.util.core.task.BasicTask.get(BasicTask.java:361)
>       at 
> org.apache.brooklyn.util.core.task.ParallelTask.runJobs(ParallelTask.java:63)
>       ... 7 more
> Caused by: 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils$EffectorCallPropagatedRuntimeException:
>  Error invoking start at EmptySoftwareProcessImpl{id=j8rtiy99gr}: Error 
> resolving config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils$EffectorCallPropagatedRuntimeException.propagate(EffectorUtils.java:318)
>       at 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils$EffectorCallPropagatedRuntimeException.access$0(EffectorUtils.java:311)
>       at 
> org.apache.brooklyn.core.mgmt.internal.EffectorUtils.handleEffectorException(EffectorUtils.java:326)
>       at 
> org.apache.brooklyn.core.effector.EffectorTasks$EffectorBodyTaskFactory$2.handleException(EffectorTasks.java:90)
>       at 
> org.apache.brooklyn.util.core.task.DynamicSequentialTask.handleException(DynamicSequentialTask.java:469)
>       at 
> org.apache.brooklyn.util.core.task.DynamicSequentialTask$DstJob.call(DynamicSequentialTask.java:417)
>       ... 5 more
> Caused by: org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> Error resolving config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at 
> org.apache.brooklyn.util.exceptions.Exceptions.propagate(Exceptions.java:129)
>       at 
> org.apache.brooklyn.util.core.task.BasicTask.getUnchecked(BasicTask.java:372)
>       at org.apache.brooklyn.util.core.task.Tasks$2.get(Tasks.java:293)
>       at 
> org.apache.brooklyn.entity.software.base.lifecycle.MachineLifecycleEffectorTasks.preStartAtMachineAsync(MachineLifecycleEffectorTasks.java:465)
>       at 
> org.apache.brooklyn.entity.software.base.lifecycle.MachineLifecycleEffectorTasks.startInLocation(MachineLifecycleEffectorTasks.java:382)
>       at 
> org.apache.brooklyn.entity.software.base.lifecycle.MachineLifecycleEffectorTasks.startInLocations(MachineLifecycleEffectorTasks.java:367)
>       at 
> org.apache.brooklyn.entity.software.base.lifecycle.MachineLifecycleEffectorTasks.start(MachineLifecycleEffectorTasks.java:356)
>       at 
> org.apache.brooklyn.entity.software.base.lifecycle.MachineLifecycleEffectorTasks$StartEffectorBody.call(MachineLifecycleEffectorTasks.java:257)
>       at 
> org.apache.brooklyn.entity.software.base.lifecycle.MachineLifecycleEffectorTasks$StartEffectorBody.call(MachineLifecycleEffectorTasks.java:1)
>       at 
> org.apache.brooklyn.core.effector.EffectorTasks$EffectorBodyTaskFactory$1.call(EffectorTasks.java:82)
>       at 
> org.apache.brooklyn.util.core.task.DynamicSequentialTask$DstJob.call(DynamicSequentialTask.java:359)
>       ... 5 more
> Caused by: java.util.concurrent.ExecutionException: 
> java.lang.IllegalArgumentException: Error resolving config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
>       at java.util.concurrent.FutureTask.get(FutureTask.java:188)
>       at 
> com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:63)
>       at org.apache.brooklyn.util.core.task.BasicTask.get(BasicTask.java:361)
>       at 
> org.apache.brooklyn.util.core.task.BasicTask.getUnchecked(BasicTask.java:370)
>       ... 14 more
> Caused by: java.lang.IllegalArgumentException: Error resolving 
> config("password"), in 
> org.apache.brooklyn.util.core.task.BasicExecutionContext@2f46ac03([LocalManagementContext[mujiHu35-oUhipl25],
>  BROOKLYN-SERVER]): 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at 
> org.apache.brooklyn.util.core.task.ValueResolver.getMaybeInternal(ValueResolver.java:411)
>       at 
> org.apache.brooklyn.util.core.task.ValueResolver.getMaybe(ValueResolver.java:257)
>       at 
> org.apache.brooklyn.util.core.task.ValueResolver.get(ValueResolver.java:250)
>       at org.apache.brooklyn.util.core.task.Tasks.resolveValue(Tasks.java:139)
>       at 
> org.apache.brooklyn.util.core.config.ResolvingConfigBag$1.apply(ResolvingConfigBag.java:67)
>       at com.google.common.collect.Maps$7.transformEntry(Maps.java:1810)
>       at com.google.common.collect.Maps$10.getValue(Maps.java:1855)
>       at 
> org.apache.brooklyn.util.core.config.ConfigBag.putAll(ConfigBag.java:218)
>       at 
> org.apache.brooklyn.util.core.config.ConfigBag.copyWhileSynched(ConfigBag.java:583)
>       at 
> org.apache.brooklyn.util.core.config.ConfigBag.copy(ConfigBag.java:574)
>       at 
> org.apache.brooklyn.util.core.config.ResolvingConfigBag.<init>(ResolvingConfigBag.java:57)
>       at 
> org.apache.brooklyn.util.core.config.ResolvingConfigBag.newInstanceExtending(ResolvingConfigBag.java:51)
>       at 
> org.apache.brooklyn.location.jclouds.JcloudsLocation.getComputeService(JcloudsLocation.java:530)
>       at 
> org.apache.brooklyn.location.jclouds.JcloudsLocation.obtainOnce(JcloudsLocation.java:662)
>       at 
> org.apache.brooklyn.location.jclouds.JcloudsLocation.obtain(JcloudsLocation.java:626)
>       at 
> org.apache.brooklyn.entity.software.base.lifecycle.MachineLifecycleEffectorTasks$ObtainLocationTask.call(MachineLifecycleEffectorTasks.java:459)
>       at 
> org.apache.brooklyn.entity.software.base.lifecycle.MachineLifecycleEffectorTasks$ObtainLocationTask.call(MachineLifecycleEffectorTasks.java:1)
>       at 
> org.apache.brooklyn.util.core.task.Tasks.withBlockingDetails(Tasks.java:106)
>       at 
> org.apache.brooklyn.entity.software.base.lifecycle.MachineLifecycleEffectorTasks$ProvisionMachineTask.call(MachineLifecycleEffectorTasks.java:431)
>       at 
> org.apache.brooklyn.entity.software.base.lifecycle.MachineLifecycleEffectorTasks$ProvisionMachineTask.call(MachineLifecycleEffectorTasks.java:1)
>       ... 6 more
> Caused by: org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at 
> org.apache.brooklyn.util.exceptions.Exceptions.propagate(Exceptions.java:129)
>       at org.apache.brooklyn.util.time.Durations.get(Durations.java:63)
>       at org.apache.brooklyn.util.time.Durations.get(Durations.java:68)
>       at 
> org.apache.brooklyn.util.core.task.ValueResolver.getMaybeInternal(ValueResolver.java:348)
>       ... 25 more
> Caused by: java.util.concurrent.ExecutionException: 
> org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
>       at java.util.concurrent.FutureTask.get(FutureTask.java:188)
>       at 
> com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:63)
>       at org.apache.brooklyn.util.core.task.BasicTask.get(BasicTask.java:361)
>       at org.apache.brooklyn.util.time.Durations.get(Durations.java:43)
>       ... 27 more
> Caused by: org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: 
> NullPointerException
>       at 
> org.apache.brooklyn.util.exceptions.Exceptions.propagate(Exceptions.java:129)
>       at 
> org.apache.brooklyn.camp.brooklyn.spi.dsl.BrooklynDslDeferredSupplier.get(BrooklynDslDeferredSupplier.java:136)
>       at 
> org.apache.brooklyn.util.core.task.ValueResolver$2.call(ValueResolver.java:334)
>       ... 6 more
> Caused by: java.util.concurrent.ExecutionException: 
> java.lang.NullPointerException
>       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
>       at java.util.concurrent.FutureTask.get(FutureTask.java:188)
>       at 
> com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:63)
>       at org.apache.brooklyn.util.core.task.BasicTask.get(BasicTask.java:361)
>       at 
> org.apache.brooklyn.camp.brooklyn.spi.dsl.BrooklynDslDeferredSupplier.get(BrooklynDslDeferredSupplier.java:129)
>       ... 7 more
> Caused by: java.lang.NullPointerException
>       at 
> org.apache.brooklyn.camp.brooklyn.spi.dsl.methods.DslComponent$DslConfigSupplier$1.call(DslComponent.java:307)
>       ... 5 more
> {noformat}
> Digging into this more, the most important part of the stacktrace is:
> {noformat}
>       at 
> org.apache.brooklyn.util.core.config.ResolvingConfigBag$1.apply(ResolvingConfigBag.java:67)
>       at com.google.common.collect.Maps$7.transformEntry(Maps.java:1810)
>       at com.google.common.collect.Maps$10.getValue(Maps.java:1855)
>       at 
> org.apache.brooklyn.util.core.config.ConfigBag.putAll(ConfigBag.java:218)
>       at 
> org.apache.brooklyn.util.core.config.ConfigBag.copyWhileSynched(ConfigBag.java:583)
>       at 
> org.apache.brooklyn.util.core.config.ConfigBag.copy(ConfigBag.java:574)
>       at 
> org.apache.brooklyn.util.core.config.ResolvingConfigBag.<init>(ResolvingConfigBag.java:57)
>       at 
> org.apache.brooklyn.util.core.config.ResolvingConfigBag.newInstanceExtending(ResolvingConfigBag.java:51)
>       at 
> org.apache.brooklyn.location.jclouds.JcloudsLocation.getComputeService(JcloudsLocation.java:530)
>       at 
> org.apache.brooklyn.location.jclouds.JcloudsLocation.obtainOnce(JcloudsLocation.java:662)
>       at 
> org.apache.brooklyn.location.jclouds.JcloudsLocation.obtain(JcloudsLocation.java:626)
> {noformat}
> In {{JcloudsLocation.obtain}}, we've created a {{ResolvingConfigBag}}. Then 
> in {{getComputeService}} we create a new {{ResolvingConfigBag}} from that. 
> The act of copying it calls {{ResolvingConfigBag.getAllConfig}}, which 
> applies the transform when the map is iterated over. This causes the values 
> to be resolved.
> We don't want that to happen. We want the copy to *not* resolve the values. 
> We can rely on the new {{ResolvingConfigBag}} to do the resolution later.



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