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https://issues.apache.org/jira/browse/SLING-10365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17341959#comment-17341959
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Konrad Windszus commented on SLING-10365:
-----------------------------------------
There seem to be a custom exporter involved, without knowing that it would be
hard to fix. Can you reproduce the issue with the Jackson Exporter which ships
with Sling?
> Sling Model Exporter framework. A HEAD request leads to the
> java.lang.IllegalArgumentException: setContentLength(0) when already written
> 273
> --------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SLING-10365
> URL: https://issues.apache.org/jira/browse/SLING-10365
> Project: Sling
> Issue Type: Bug
> Reporter: Olena
> Priority: Major
> Attachments: SlingHead.log
>
>
> We are using the Sling Model Exported framework:
> {code:java}
> @Model(adaptables = Resource.class, resourceType = “myResourceType”)
> @Exporters({
> @Exporter(name = ExporterA.NAME, selector = "css", extensions =
> "html"),
> @Exporter(name = ExporterB.NAME, selector = "js", extensions = "html")
> })
> public class MyModel { {code}
> Sightly script:
> {code:java}
> ${@ resourceType='myResourceType', selectors='css'}"
> {code}
>
> A HEAD request leads to an error, at the same time, a GET request is
> processed successfully.
> {code:java}
> java.lang.IllegalArgumentException: setContentLength(0) when already written
> 273 at org.eclipse.jetty.server.Response.setContentLength(Response.java:876)
> [org.apache.felix.http.jetty:4.1.6] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> org.apache.sling.engine.impl.log.RequestLoggerResponse.setContentLength(RequestLoggerResponse.java:198)
> [org.apache.sling.engine:2.7.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> javax.servlet.ServletResponseWrapper.setContentLength(ServletResponseWrapper.java:112)
> [org.apache.felix.http.servlet-api:1.1.2] at
> org.apache.sling.api.servlets.SlingSafeMethodsServlet$NoBodyResponse.setContentLength(SlingSafeMethodsServlet.java:511)
> [org.apache.sling.api:2.22.0] at
> org.apache.sling.api.servlets.SlingSafeMethodsServlet$NoBodyResponse.setContentLength(SlingSafeMethodsServlet.java:501)
> [org.apache.sling.api:2.22.0] at
> org.apache.sling.api.servlets.SlingSafeMethodsServlet.doHead(SlingSafeMethodsServlet.java:105)
> [org.apache.sling.api:2.22.0]
> {code}
> Please find the full log attached
>
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