For example, max-pool-size ends up with a value of "0", when its default should be some sensible non-zero value (default was "20" in JBAS4).

Here's what the managed properties look like on a Conn Factory component before I call updateComponent():

name=allocation-retry, mappedName=allocationRetry, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:int:null
name=allocation-retry-wait-millis, mappedName=allocationRetryWaitMillis, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:long:null
name=availableConnectionCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Long:10
name=background-validation, mappedName=backgroundValidation, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:boolean:false
name=background-validation-millis, mappedName=backgroundValidationMillis, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:long:null
name=blocking-timeout-millis, mappedName=blockingTimeoutMilliSeconds, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:long:null
name=config-property, mappedName=managedConnectionFactoryProperties, viewUse=CONFIGURATION, required=false, value= MapCompositeMetaType

{java.util.Map}:{}
Items:
name=connection-definition, mappedName=connectionDefinition, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.String:org.jboss.resource
.adapter.jms.JmsConnectionFactory
name=connectionCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Integer:0
name=connectionCreatedCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Integer:0
name=connectionDestroyedCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Integer:0
name=idle-timeout-minutes, mappedName=idleTimeoutMinutes, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:int:null
name=inUseConnectionCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Long:0
name=interleaving, viewUse=NONE, required=false, type=SimpleMetaType, value= <<<null>>>
name=isSameRM-override-value, mappedName=isSameRMOverrideValue, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:false
name=jmx-invoker-name, mappedName=jmxInvokerName, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.String:jboss:service=invoker,type=jrmp
name=jndi-name, mappedName=jndiName, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.String:151d5359-bf58-48d7-a02b-2fe74f9c5a88
name=local-transaction, mappedName=localTransactions, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:true
name=max-pool-size, mappedName=maxSize, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:int:null
name=maxConnectionsInUseCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Long:0
name=maxSize, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Integer:10
name=metadata, mappedName=DBMSMetaData, viewUse=CONFIGURATION, required=false, value= CompositeValueSupport: metaType=[MutableCompositeMetaType{org.jboss.resource.metadata.mcf.DBMSMetaData items=[name=typeMapping type=java.lang.String]}] items=[typeMapping=null]
Items:
typeMapping=<<<null>>>
name=min-pool-size, mappedName=minSize, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:int:null
name=minSize, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Integer:0
name=no-tx-separate-pools, mappedName=noTxSeparatePools, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:false
name=poolJndiName, viewUse=RUNTIME, required=false, value= SimpleMetaType:java.lang.String:151d5359-bf58-48d7-a02b-2fe74f9c5a88
name=prefill, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:false
name=rar-name, mappedName=rarName, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.String:jms-ra.rar
name=security-domain, mappedName=securityMetaData, viewUse=CONFIGURATION, required=false, value= GenericMetaType:security-domain:ManagedObject{security-domai n}
name=statistics-formatter, mappedName=statisticsFormatter, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.String:org.jboss.resource.s
tatistic.pool.JBossDefaultSubPoolStatisticFormatter
name=track-connection-by-tx, mappedName=trackConnectionByTransaction, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:true
name=type-mapping, mappedName=typeMapping, viewUse=CONFIGURATION, required=false, type=SimpleMetaType, value= <<<null>>>
name=use-java-context, mappedName=useJavaContext, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:boolean:true
name=use-strict-min, mappedName=useStrictMin, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:false
name=validate-on-match, mappedName=validateOnMatch, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:boolean:true
name=xa-resource-timeout, mappedName=xaResourceTimeout, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:int:null
name=xa-transaction, mappedName=XATransaction, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:false


And here's what they look like after updateComponent() is called:

name=allocation-retry, mappedName=allocationRetry, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:int:0
name=allocation-retry-wait-millis, mappedName=allocationRetryWaitMillis, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:long:0
name=availableConnectionCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Long:10
name=background-validation, mappedName=backgroundValidation, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:boolean:false
name=background-validation-millis, mappedName=backgroundValidationMillis, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:long:0
name=blocking-timeout-millis, mappedName=blockingTimeoutMilliSeconds, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:long:0
name=config-property, mappedName=managedConnectionFactoryProperties, viewUse=CONFIGURATION, required=false, value= MapCompositeMetaType{java.util.Map}

:{}
Items:
name=connection-definition, mappedName=connectionDefinition, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.String:org.jboss.resource
.adapter.jms.JmsConnectionFactory
name=connectionCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Integer:0
name=connectionCreatedCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Integer:0
name=connectionDestroyedCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Integer:0
name=idle-timeout-minutes, mappedName=idleTimeoutMinutes, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:int:0
name=inUseConnectionCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Long:0
name=interleaving, viewUse=NONE, required=false, type=SimpleMetaType, value= <<<null>>>
name=isSameRM-override-value, mappedName=isSameRMOverrideValue, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:false
name=jmx-invoker-name, mappedName=jmxInvokerName, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.String:jboss:service=invoker,type=jr
mp
name=jndi-name, mappedName=jndiName, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.String:151d5359-bf58-48d7-a02b-2fe74f9c5a88
name=local-transaction, mappedName=localTransactions, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:true
name=max-pool-size, mappedName=maxSize, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:int:0
name=maxConnectionsInUseCount, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Long:0
name=maxSize, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Integer:10
name=metadata, mappedName=DBMSMetaData, viewUse=CONFIGURATION, required=false, value= CompositeValueSupport: metaType=[MutableCompositeMetaType

{org.jboss.res ource.metadata.mcf.DBMSMetaData items=[name=typeMapping type=java.lang.String]}

] items=[typeMapping=null]
Items:
typeMapping=<<<null>>>
name=min-pool-size, mappedName=minSize, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:int:0
name=minSize, viewUse=STATISTIC, required=false, value= SimpleMetaType:java.lang.Integer:0
name=no-tx-separate-pools, mappedName=noTxSeparatePools, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:false
name=poolJndiName, viewUse=RUNTIME, required=false, value= SimpleMetaType:java.lang.String:151d5359-bf58-48d7-a02b-2fe74f9c5a88
name=prefill, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:false
name=rar-name, mappedName=rarName, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.String:jms-ra.rar
name=security-domain, mappedName=securityMetaData, viewUse=CONFIGURATION, required=false, type=GenericMetaType, value= <<<null>>>
name=statistics-formatter, mappedName=statisticsFormatter, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.String:org.jboss.resource.s
tatistic.pool.JBossDefaultSubPoolStatisticFormatter
name=track-connection-by-tx, mappedName=trackConnectionByTransaction, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:true
name=type-mapping, mappedName=typeMapping, viewUse=CONFIGURATION, required=false, type=SimpleMetaType, value= <<<null>>>
name=use-java-context, mappedName=useJavaContext, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:boolean:true
name=use-strict-min, mappedName=useStrictMin, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:false
name=validate-on-match, mappedName=validateOnMatch, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:boolean:true
name=xa-resource-timeout, mappedName=xaResourceTimeout, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:int:0
name=xa-transaction, mappedName=XATransaction, viewUse=CONFIGURATION, required=false, value= SimpleMetaType:java.lang.Boolean:false

Notice, how all of the integer properties that had null values now have values of "0", which in most cases, is not the correct default.

Another option besides setting the values to the correct defaults is for the profile service to just leave the values set to null, which would tell the user that the underlying component's builtin default will be used.