[jira] [Commented] (CAMEL-21400) StackOverflowError when processing files

["Antoine DESSAIGNE (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CAMEL-21400?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17893936#comment-17893936 ] 

Antoine DESSAIGNE commented on CAMEL-21400:
-------------------------------------------

Thanks to a git bisect, the regression is due to [commit 6324bc0a6da|https://github.com/apache/camel/commit/6324bc0a6dae05650b851a9524407c5382d3ff6e] from CAMEL-16829

Unfortunately, I don't understand this part of the code. Please let me know if there's anything I can do to help. Thank you.

> StackOverflowError when processing files
> ----------------------------------------
>
>                 Key: CAMEL-21400
>                 URL: https://issues.apache.org/jira/browse/CAMEL-21400
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 4.7.0
>            Reporter: Antoine DESSAIGNE
>            Priority: Minor
>
> Hello everyone,
> I just discovered a {{StackOverflowError}} when using reading files. Here's the smallest reprocase I could find.
> {code:java}
> // Create a temp directory with a CSV file
> Path tempDirectory = Files.createTempDirectory("camel-test");
> try (BufferedWriter writer = Files.newBufferedWriter(tempDirectory.resolve("file1.csv"))) {
>     writer.write("fieldA,fieldB,fieldC,fieldD\n");
>     for (int i = 0; i < 20000; i++) {
>         writer.write("fieldA" + i + ",fieldB" + i + ",fieldC" + i + ",fieldD" + i + "\n");
>     }
> }
> // Seems to fail if the target producer extends DefaultProducer and works if it extends DefaultAsyncProducer
> String target = "file://output"; // this fails
> //String target = "log://speed?groupSize=1000"; // this works
> DefaultCamelContext context = new DefaultCamelContext();
> context.addRoutes(new RouteBuilder() {
>     @Override
>     public void configure() {
>         from("file://" + tempDirectory.toAbsolutePath() + "?noop=true").to("direct:read").log("Done!");
>         from("direct:read").unmarshal().csv().split(body()).to("direct:agg");
>          from("direct:agg").aggregate(constant("SINGLE_GROUP"), new GroupedExchangeAggregationStrategy())
>                 .completionSize(1)
>                 .setBody((Exchange exchange) -> {
>                     List<Exchange> list = (List<Exchange>) exchange.getMessage().getBody();
>                     return list.stream().map(e -> e.getMessage().getBody().toString()).collect(joining("\n"));
>                 })
>                 .to(target);
>     }
> });
> context.start();
> {code}
> -As mentioned in the example, it only seems to fail if the processor in the aggregation is a {{DefaultProcessor}} and not a {{DefaultAsyncProcessor}}-
> It still fails after converting my component to {{DefaultAsyncProcessor}}, so it's unrelated.
> Can you have a look? Thank you



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