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From rdowner <...@git.apache.org>
Subject [GitHub] incubator-brooklyn pull request: Add ManagementContext.getConfigWi...
Date Wed, 11 Nov 2015 11:39:32 GMT
Github user rdowner commented on the pull request:

    https://github.com/apache/incubator-brooklyn/pull/1018#issuecomment-155745923
  
    @neykov I saw a problem if I modified `LocalManagementContext.getConfig()` to do the resolution.
If this method returns something that is not the original `configMap` - even if it is an identical
copy (such as by replacing the method body with `return BrooklynProperties.Factory.newEmpty().addFrom(configMap);`)
then I got this exception during launch:
    
    ```
    2015-11-11 11:10:20,534 WARN  Error importing catalog from classpath:/brooklyn/default.catalog.bom:
org.apache.brooklyn.util.exceptions.CompoundRuntimeException: Could not resolve item server,
2 errors including: Transformer for Brooklyn OASIS CAMP interpreter gave an error creating
this plan: No CAMP Platform is registered with this Brooklyn management context.
    org.apache.brooklyn.util.exceptions.CompoundRuntimeException: Could not resolve item server,
2 errors including: Transformer for Brooklyn OASIS CAMP interpreter gave an error creating
this plan: No CAMP Platform is registered with this Brooklyn management context.
            at org.apache.brooklyn.util.exceptions.Exceptions.create(Exceptions.java:306)
~[org.apache.brooklyn-brooklyn-utils-common-0.9.0-SNAPSHOT.jar:0.9.0-SNAPSHOT]
    Caused by: java.lang.IllegalStateException: Transformer for Brooklyn OASIS CAMP interpreter
gave an error creating this plan: No CAMP Platform is registered with this Brooklyn management
context.
            at org.apache.brooklyn.util.guava.IllegalStateExceptionSupplier.get(IllegalStateExceptionSupplier.java:52)
~[org.apache.brooklyn-brooklyn-utils-common-0.9.0-SNAPSHOT.jar:0.9.0-SNAPSHOT]
    Caused by: org.apache.brooklyn.util.exceptions.PropagatedRuntimeException:
            at org.apache.brooklyn.util.exceptions.Exceptions.create(Exceptions.java:298)
~[org.apache.brooklyn-brooklyn-utils-common-0.9.0-SNAPSHOT.jar:0.9.0-SNAPSHOT]
    Caused by: org.apache.brooklyn.util.exceptions.PropagatedRuntimeException: Transformer
for Brooklyn OASIS CAMP interpreter gave an error creating this plan: No CAMP Platform is
registered with this Brooklyn management context.
            at org.apache.brooklyn.core.plan.PlanToSpecFactory.attemptWithLoaders(PlanToSpecFactory.java:110)
~[org.apache.brooklyn-brooklyn-core-0.9.0-SNAPSHOT.jar:0.9.0-SNAPSHOT]
    Caused by: java.lang.IllegalStateException: No CAMP Platform is registered with this Brooklyn
management context.
            at org.apache.brooklyn.camp.brooklyn.spi.creation.CampUtils.getCampPlatform(CampUtils.java:217)
~[org.apache.brooklyn-brooklyn-camp-0.9.0-SNAPSHOT.jar:0.9.0-SNAPSHOT]
    ```
    
    Interestingly if I modify the method to use a MemoizedSupplier - meaning that it will
consistently return the same object - the error disappears. This suggests that there is something
that gets upset if `getConfig()` returns a different object, even if the contents are the
same.
    
    [A thought occurs to me. Is something *modifying* the config object that is returned?]


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