[jboss-jira] [JBoss JIRA] (WFLY-3281) Cannot call getOutputStream(), getWriter() already called

Cannot call getOutputStream(), getWriter() already called --------------------------------------------------------- Key: WFLY-3281 URL: https://issues.jboss.org/browse/WFLY-3281 Project: WildFly Issue Type: Bug Security Level: Public(Everyone can see) Components: Web (Undertow) Affects Versions: 8.1.0.CR1 Environment: linux Reporter: Jakob Munih Assignee: Stuart Douglas Priority: Minor Fix For: 8.1.0.Final Similar to WFL-1276 I got “UT005023: Exception handling request to /hsb/web-services/: java.lang.IllegalStateException: UT010005: Cannot call getOutputStream(), getWriter() already called” when accessing CXFNonSpringServlet servlet that shows all web services deployed with ApacheCamel 2.13.0. The exception is was not present in WF 8.0. Even with the exception the servlet renders all available service correctly. Servlet: {code} import com.parsek.hsb.commons.Hsb; import org.apache.cxf.Bus; import org.apache.cxf.transport.servlet.CXFNonSpringServlet; import javax.inject.Inject; import javax.servlet.ServletConfig; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; // reuse camel bus @WebServlet(value = "/web-services/*", name = "HsbWebServices", asyncSupported = true, loadOnStartup = 1) public class ExposeCxf extends CXFNonSpringServlet { @Hsb @Inject private Bus bus; @Override public void init(ServletConfig sc) throws ServletException { setBus(bus); super.init(sc); } } {code} Exception {noformat} 11:12:05,900 ERROR [io.undertow.request] (default task-11) UT005023: Exception handling request to /hsb/web-services/: java.lang.IllegalStateException: UT010005: Cannot call getOutputStream(), getWriter() already called at io.undertow.servlet.spec.HttpServletResponseImpl.getOutputStream(HttpServletResponseImpl.java:283) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at org.apache.cxf.transport.servlet.servicelist.ServiceListGeneratorServlet.renderStyleSheet(ServiceListGeneratorServlet.java:174) [cxf-rt-transports-http-2.7.10.jar:2.7.10] at org.apache.cxf.transport.servlet.servicelist.ServiceListGeneratorServlet.service(ServiceListGeneratorServlet.java:89) [cxf-rt-transports-http-2.7.10.jar:2.7.10] at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final] at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:170) [cxf-rt-transports-http-2.7.10.jar:2.7.10] at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:153) [cxf-rt-transports-http-2.7.10.jar:2.7.10] at org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:167) [cxf-rt-transports-http-2.7.10.jar:2.7.10] at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:286) [cxf-rt-transports-http-2.7.10.jar:2.7.10] at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:211) [cxf-rt-transports-http-2.7.10.jar:2.7.10] at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final] at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:262) [cxf-rt-transports-http-2.7.10.jar:2.7.10] at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.5.Final.jar:1.0.5.Final] at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:113) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.0.5.Final.jar:1.0.5.Final] at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:61) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.0.5.Final.jar:1.0.5.Final] at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.0.5.Final.jar:1.0.5.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.5.Final.jar:1.0.5.Final] at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.5.Final.jar:1.0.5.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.5.Final.jar:1.0.5.Final] at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:240) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:227) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:73) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:146) [undertow-servlet-1.0.5.Final.jar:1.0.5.Final] at io.undertow.server.Connectors.executeRootHandler(Connectors.java:168) [undertow-core-1.0.5.Final.jar:1.0.5.Final] at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:727) [undertow-core-1.0.5.Final.jar:1.0.5.Final] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0] at java.lang.Thread.run(Thread.java:744) [rt.jar:1.8.0] {noformat} {code}