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https://issues.apache.org/activemq/browse/CAMEL-2167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=56203#action_56203
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Barry Kaplan commented on CAMEL-2167:
-------------------------------------
I think I've made a breakthru. In my sandbox (where I've created skeletons of
some of the camel-core and camel-scala classes) I have gotten past what was
causing the compiler to crash in the full build and generate type errors in the
sandbox.
(For this case at last) it was a mistake in the java generics:
{code}
public class ExpressionNode extends ProcessorDefinition<ProcessorDefinition>
{..}
{code}
Should be:
{code}
public class ExpressionNode extends ProcessorDefinition<ExpressionNode > {..}
{code}
Which allowed this to type check:
{code}
abstract class SAbstractDefinition[P <: ProcessorDefinition[_]] {..}
case class SIdempotentConsumerDefinition(val target:
IdempotentConsumerDefinition) extends
SAbstractDefinition[IdempotentConsumerDefinition] {..}
{code}
> Upgrade camel-scala to scala 2.8
> --------------------------------
>
> Key: CAMEL-2167
> URL: https://issues.apache.org/activemq/browse/CAMEL-2167
> Project: Apache Camel
> Issue Type: Improvement
> Components: camel-scala
> Affects Versions: 2.0.0
> Reporter: Barry Kaplan
> Assignee: Hadrian Zbarcea
> Fix For: 2.2.0, 2.3.0
>
> Attachments: Upgrade_to_scala_2_8.patch
>
>
> The attached patch upgrades to 2.8.0-SNAPSHOT (actually a specific version,
> but pretty close to today).
> Only a few changes were required:
> - Change package declarations to new 2.8 style that allows relative imports
> - Change org.apache.camel.scala.conveters.ScalaTypeConverter from a
> singleton object to a class. Otherwise ObjectHelper failed to instantiate the
> converter due to private access. (This could be 2.8 bug. I will need to raise
> an issue.)
> - Removed generic parameters on references to java classes that were not
> generic. Don't know why this compiled with scala 2.7.
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