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https://issues.apache.org/jira/browse/CAMEL-21376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Grzegorz Rozanski updated CAMEL-21376:
--------------------------------------
Description:
I found a case when NullPointerException occurs in
UseOriginalAggregationStrategy's aggregate method.
I have this route configuration:
\{code:java}
.multicast(AggregationStrategies.useOriginal()).parallelProcessing()
.to(DIRECT_ROUTE1)
.to(DIRECT_ROUTE2)
{code}
and in DIRECT_ROUTE2 has this:
{code:java}
.doTry()
.unmarshal().zipFile()
{code}
when the zip file is invalid there's exception handling in
UseOriginalAggregationStrategy::aggregate method:
{code:java}
exception = checkCaughtException(oldExchange, newExchange);
if (exception != null) {
if (original != null) {
original.setProperty(Exchange.EXCEPTION_CAUGHT, exception);
} else {
oldExchange.setProperty(Exchange.EXCEPTION_CAUGHT, exception); //NULL
POINTER oldExchange is null
}
} {code}
I checked javadoc about this aggregate method it says that:
Params:
oldExchange - the oldest exchange (is null on first aggregation as we only have
the new exchange)
and I think this is what happens in my case when I get NullPointerException in
line 78 (oldExchange is null):
} else
{ *oldExchange.setProperty(Exchange.EXCEPTION_CAUGHT, exception);* }
When I create my own aggregation strategy based on
UseOriginalAggregationStrategy and modify this `else` part everything works
properly:
} else if (oldExchange != null)
{ oldExchange.setProperty(Exchange.EXCEPTION_CAUGHT, exception); }
I see that similar null check already exists in checkCaughtException method.
The full stack trace can be found as attachment to this ticket.
was:
I found a case when NullPointerException occurs in
UseOriginalAggregationStrategy's aggregate method.
I have this route configuration:
\{code:java}
.multicast(AggregationStrategies.useOriginal()).parallelProcessing()
.to(DIRECT_ROUTE1)
.to(DIRECT_ROUTE2)
{code}
and in DIRECT_ROUTE2 there's this code:
{code:java}
.doTry()
.unmarshal().zipFile()
{code}
when the zip file is invalid there's exception handling in
UseOriginalAggregationStrategy::aggregate method:
{code:java}
exception = checkCaughtException(oldExchange, newExchange);
if (exception != null) {
if (original != null) {
original.setProperty(Exchange.EXCEPTION_CAUGHT, exception);
} else {
oldExchange.setProperty(Exchange.EXCEPTION_CAUGHT, exception);
}
} {code}
I checked javadoc about this aggregate method it says that:
Params:
oldExchange - the oldest exchange (is null on first aggregation as we only have
the new exchange)
and I think this is what happens in my case when I get NullPointerException in
line 78 (oldExchange is null):
} else
{ *oldExchange.setProperty(Exchange.EXCEPTION_CAUGHT, exception);* }
When I create my own aggregation strategy based on
UseOriginalAggregationStrategy and modify this `else` part everything works
properly:
} else if (oldExchange != null)
{ oldExchange.setProperty(Exchange.EXCEPTION_CAUGHT, exception); }
I see that similar null check already exists in checkCaughtException method.
The full stack trace can be found as attachment to this ticket.
> UseOriginalAggregationStrategy - null pointer
> ---------------------------------------------
>
> Key: CAMEL-21376
> URL: https://issues.apache.org/jira/browse/CAMEL-21376
> Project: Camel
> Issue Type: Bug
> Components: came-core
> Affects Versions: 4.8.0
> Reporter: Grzegorz Rozanski
> Priority: Minor
> Attachments: camel-null-pointer.log
>
>
> I found a case when NullPointerException occurs in
> UseOriginalAggregationStrategy's aggregate method.
>
> I have this route configuration:
> \{code:java}
> .multicast(AggregationStrategies.useOriginal()).parallelProcessing()
> .to(DIRECT_ROUTE1)
> .to(DIRECT_ROUTE2)
> {code}
> and in DIRECT_ROUTE2 has this:
> {code:java}
> .doTry()
> .unmarshal().zipFile()
> {code}
>
> when the zip file is invalid there's exception handling in
> UseOriginalAggregationStrategy::aggregate method:
>
> {code:java}
> exception = checkCaughtException(oldExchange, newExchange);
> if (exception != null) {
> if (original != null) {
> original.setProperty(Exchange.EXCEPTION_CAUGHT, exception);
> } else {
> oldExchange.setProperty(Exchange.EXCEPTION_CAUGHT, exception);
> //NULL POINTER oldExchange is null
> }
> } {code}
>
> I checked javadoc about this aggregate method it says that:
> Params:
> oldExchange - the oldest exchange (is null on first aggregation as we only
> have the new exchange)
>
> and I think this is what happens in my case when I get NullPointerException
> in line 78 (oldExchange is null):
>
> } else
> { *oldExchange.setProperty(Exchange.EXCEPTION_CAUGHT, exception);* }
>
> When I create my own aggregation strategy based on
> UseOriginalAggregationStrategy and modify this `else` part everything works
> properly:
>
> } else if (oldExchange != null)
> { oldExchange.setProperty(Exchange.EXCEPTION_CAUGHT, exception); }
>
> I see that similar null check already exists in checkCaughtException method.
>
> The full stack trace can be found as attachment to this ticket.
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