On Mon, Mar 7, 2016 at 5:48 PM, Sean Dawson <seandawson2...@gmail.com>
wrote:
>
>
> On Mon, Mar 7, 2016 at 5:44 PM, David Kerber <dcker...@verizon.net> wrote:
>
>> On 3/7/2016 5:11 PM, Sean Dawson wrote:
>>
>>> On Sun, Mar 6, 2016 at 12:48 PM, Sean Dawson <seandawson2...@gmail.com>
>>> wrote:
>>>
>>> Tomcat 8_32
>>>> Windows 7
>>>> Java 8_51
>>>> RestEasy 3.0.11.Final
>>>> GWT 2.7.0 (Jetty jetty-9.3.5.v20151012)
>>>>
>>>> Servlet code makes a RestEasy call to another servlet (same container) -
>>>> second servlet sets the 'Warning' HTTP header on response. Would like
>>>> to
>>>> access that in first servlet but when running in Tomcat, that header is
>>>> not
>>>> included.
>>>>
>>>> Code to get header in first servlet:
>>>>
>>>> Object headers = ((ClientResponseFailure)
>>>> e).getResponse().getResponseHeaders().get("Warning");
>>>>
>>>> Also tried: getHeaders(), getStringHeaders(), and getHeaderString().
>>>>
>>>> When running GWT in superdev mode in IntelliJ (15.0.4) using Jetty, the
>>>> above returns a List with one item that contains the warning string.
>>>> When
>>>> remote debugging Tomcat, that call returns null.
>>>>
>>>> Added this to web app xml, and also tried Tomcat conf/web.xml...
>>>>
>>>> <filter>
>>>> <filter-name>CorsFilter</filter-name>
>>>>
>>>> <filter-class>org.apache.catalina.filters.CorsFilter</filter-class>
>>>> <init-param>
>>>> <param-name>cors.exposed.headers</param-name>
>>>> <param-value>Warning</param-value>
>>>> </init-param>
>>>> </filter>
>>>> <filter-mapping>
>>>> <filter-name>CorsFilter</filter-name>
>>>> <url-pattern>/*</url-pattern>
>>>> </filter-mapping>
>>>>
>>>> Also tried cors.allowed.headers.
>>>>
>>>> Any pointers?
>>>>
>>>>
>>>> Alright, lets try this again. Simple reproducible testcase...
>>>
>>> - download latest Tomcat 8 for Windows 64-bit zip
>>>
>>> http://mirrors.ocf.berkeley.edu/apache/tomcat/tomcat-8/v8.0.32/bin/apache-tomcat-8.0.32-windows-x64.zip
>>> - extract somewhere
>>> - delete everything in webapps folder
>>> - build project below, put in webapps folder
>>> - go to: http://localhost:8080/one
>>> - check response headers... no Warning header
>>>
>>> ** pom.xml **
>>>
>>> <project xmlns="http://maven.apache.org/POM/4.0.0";
>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>>> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
>>> http://maven.apache.org/maven-v4_0_0.xsd";>
>>> <modelVersion>4.0.0</modelVersion>
>>>
>>> <groupId>test</groupId>
>>> <artifactId>tcTest</artifactId>
>>> <packaging>war</packaging>
>>> <version>1.0-SNAPSHOT</version>
>>>
>>> <name>tcTest Maven Webapp</name>
>>> <url>http://maven.apache.org</url>
>>>
>>> <dependencies>
>>> <dependency>
>>> <groupId>org.glassfish</groupId>
>>> <artifactId>javax.servlet</artifactId>
>>> <version>3.1.1</version>
>>> </dependency>
>>> <dependency>
>>> <groupId>org.jboss.resteasy</groupId>
>>> <artifactId>resteasy-client</artifactId>
>>> <version>3.0.11.Final</version>
>>> </dependency>
>>> </dependencies>
>>>
>>
>> If you're adding Maven, Glassfish and JBoss, you're adding a LOT of
>> complexity to your "simple" reproducible! I've never used any of them, so
>> would have no hope of reproducing your issue. And there's a fair chance
>> that it has nothing to do with Tomcat anyway, given all the other stuff
>> around it...
>>
>>
> I could remove JBoss from the equation - and maven, although I'm pretty
> sure that's not adding much complexity. If I run it on jetty instead of
> tomcat, it works fine. So I'm leaning toward Tomcat (or something extra I
> need to do for Tomcat) as the issue.
>
>
Ok using httpclient instead of RestEasy shows the header. Strange that
RestEasy passes headers in the Jetty case but not the Tomcat one. But I'll
see if I can get help from them. Thanks.
>>
>>
>>> <build>
>>> <finalName>ROOT</finalName>
>>> </build>
>>> </project>
>>>
>>>
>>> ** web.xml **
>>>
>>>
>>> <!DOCTYPE web-app PUBLIC
>>> "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
>>> "http://java.sun.com/dtd/web-app_2_3.dtd"; >
>>>
>>> <web-app>
>>> <display-name>Archetype Created Web Application</display-name>
>>>
>>> <servlet>
>>> <servlet-name>One</servlet-name>
>>> <servlet-class>pkg.ServletOne</servlet-class>
>>> </servlet>
>>>
>>> <servlet-mapping>
>>> <servlet-name>One</servlet-name>
>>> <url-pattern>/one/*</url-pattern>
>>> </servlet-mapping>
>>>
>>> <servlet>
>>> <servlet-name>Two</servlet-name>
>>> <servlet-class>pkg.ServletTwo</servlet-class>
>>> </servlet>
>>>
>>> <servlet-mapping>
>>> <servlet-name>Two</servlet-name>
>>> <url-pattern>/two/*</url-pattern>
>>> </servlet-mapping>
>>> </web-app>
>>>
>>>
>>> ** index.html **
>>>
>>>
>>> <html>
>>> <body>
>>> <h2>Hello World!</h2>
>>> </body>
>>> </html>
>>>
>>>
>>> ** Caller interface **
>>>
>>>
>>> package pkg;
>>>
>>> import javax.ws.rs.GET;
>>> import javax.ws.rs.Path;
>>>
>>> public interface Caller
>>> {
>>> @GET
>>> @Path("two")
>>> String makeCall();
>>> }
>>>
>>>
>>>
>>> ** Servlet one **
>>>
>>>
>>> package pkg;
>>>
>>> import java.io.IOException;
>>>
>>> import javax.servlet.ServletException;
>>> import javax.servlet.http.HttpServlet;
>>> import javax.servlet.http.HttpServletRequest;
>>> import javax.servlet.http.HttpServletResponse;
>>> import javax.ws.rs.core.MediaType;
>>>
>>> import org.jboss.resteasy.client.ProxyBuilder;
>>>
>>> public class ServletOne extends HttpServlet
>>> {
>>> Caller caller;
>>>
>>> @Override
>>> public void init() throws ServletException
>>> {
>>> caller = ProxyBuilder.build(Caller.class,
>>> "http://localhost:8080";).now();
>>> }
>>>
>>> @Override
>>> protected void doGet(HttpServletRequest request,
>>> HttpServletResponse response) throws ServletException, IOException
>>> {
>>> String result = caller.makeCall();
>>> response.getWriter().println(result);
>>> }
>>> }
>>>
>>>
>>> ** Servlet two **
>>>
>>>
>>> package pkg;
>>>
>>> import java.io.IOException;
>>>
>>> import javax.servlet.ServletException;
>>> import javax.servlet.http.HttpServlet;
>>> import javax.servlet.http.HttpServletRequest;
>>> import javax.servlet.http.HttpServletResponse;
>>>
>>> public class ServletTwo extends HttpServlet
>>> {
>>> @Override
>>> protected void doGet(HttpServletRequest request,
>>> HttpServletResponse response) throws ServletException, IOException
>>> {
>>> addHeader(response);
>>> response.getWriter().println("Ok");
>>> }
>>>
>>> void addHeader(HttpServletResponse response)
>>> {
>>> response.setHeader("Warning", "This is a warning"); // also
>>> tried addHeader()
>>> }
>>> }
>>>
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
>> For additional commands, e-mail: users-h...@tomcat.apache.org
>>
>>
>
