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https://issues.apache.org/activemq/browse/CAMEL-2927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=60540#action_60540
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Claus Ibsen commented on CAMEL-2927:
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We should most likely @deprecate those fluent builder methods which can lead to
this issue, to force end users to provide the expression as a parameter. This
only applies for the complex EIPs such as Aggregator, Splitter etc.
> Compilation error when using .to, .log, .wireTap, etc. before calling
> .aggregate() in the Java DSL
> --------------------------------------------------------------------------------------------------
>
> Key: CAMEL-2927
> URL: https://issues.apache.org/activemq/browse/CAMEL-2927
> Project: Apache Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 2.3.0
> Environment: java version "1.6.0_17"
> Java(TM) SE Runtime Environment (build 1.6.0_17-b04-248-10M3025)
> Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01-101, mixed mode)
> Darwin richard-burtons-macbook-pro.local 10.2.0 Darwin Kernel Version 10.2.0:
> Tue Nov 3 10:37:10 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386 i386
> Reporter: Richard L. Burton III
> Assignee: Claus Ibsen
> Fix For: 2.4.0
>
>
> The following code generates a compile time exception:
> from("direct:example")
> .log("This will break during compile time.")
> .aggregate().constant(true).completionSize(2)
> .completionTimeout(500L)
> .to("mock:result")
> ;
> Compile time exception:
> symbol : method completionSize(int)
> location: class java.lang.Object
> When removing .log("This will break during compile time."), the project
> compiles successfully. I verified this holds true for .to and .wireTap as
> well.
> Taking the example from
> https://svn.apache.org/repos/asf/camel/trunk/camel-core/src/test/java/org/apache/camel/processor/aggregator/AggregateGroupedExchangeBatchSizeTest.java
> and placing a .log or .to after the .from(..) reproduces the problem as well.
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