I also tried;
1 ### Let Jetty use PROXY settings
using the next flags for the VM in order to let Jetty use our company proxy
-Dhttp.proxyHost=
-Dhttp.proxyPort=
-Dhttps.proxyHost=
-Dhttps.proxyPort=
It still gave the 502/Bad gateway
2 ### Changing the proxy to refer to https directly
( Because if I navigate to the http url (as written in the original web.xml)
with my browser it redirects to the https variant. So I thought maybe the
servlet doesn’t cope with the redirct. )
Changed
Jetty9.4\demo-base\webapps\javadoc-proxy.war\WEB-INF\web.xml
To refer to
https://www.eclipse.org/jetty/javadoc/
Instead of http://, Now when I access the demo-base Javadoc link then, I get
this:
HTTP ERROR 500
Problem accessing /proxy/current/. Reason:
Server Error
Caused by:
java.lang.NullPointerException: Missing SslContextFactory
at java.util.Objects.requireNonNull(Objects.java:228)
at
org.eclipse.jetty.io.ssl.SslClientConnectionFactory.<init>(SslClientConnectionFactory.java:55)
at
org.eclipse.jetty.client.HttpClient.newSslClientConnectionFactory(HttpClient.java:1170)
at
org.eclipse.jetty.client.HttpDestination.newSslClientConnectionFactory(HttpDestination.java:137)
at org.eclipse.jetty.client.HttpDestination.<init>(HttpDestination.java:94)
at
org.eclipse.jetty.client.PoolingHttpDestination.<init>(PoolingHttpDestination.java:25)
at
org.eclipse.jetty.client.http.HttpDestinationOverHTTP.<init>(HttpDestinationOverHTTP.java:32)
at
org.eclipse.jetty.client.http.HttpClientTransportOverHTTP.newHttpDestination(HttpClientTransportOverHTTP.java:51)
at org.eclipse.jetty.client.HttpClient.destinationFor(HttpClient.java:542)
at org.eclipse.jetty.client.HttpClient.send(HttpClient.java:575)
at org.eclipse.jetty.client.HttpRequest.send(HttpRequest.java:726)
at org.eclipse.jetty.client.HttpRequest.send(HttpRequest.java:718)
at
org.eclipse.jetty.proxy.AbstractProxyServlet.sendProxyRequest(AbstractProxyServlet.java:561)
at org.eclipse.jetty.proxy.ProxyServlet.service(ProxyServlet.java:119)
Regards
From: [email protected] <[email protected]> On
Behalf Of Houtman, Roland
Sent: Friday, July 19, 2019 9:43 AM
To: JETTY user mailing list <[email protected]>
Subject: Re: [jetty-users] ProxyServlet$Transparent returns 502 for external
sites
Thanks,
I downloaded Jetty latest 9.4, ran the demo-base and was looking around,
Then I found that the transparent-proxy is used for redirecting to the online
Javadoc
Localhost:8080/proxy/current
So, I click it and I also get “502 bad gateway”
Is there some logging which I can pick up to see why the remote site returns
502?
Kind regards
From: [email protected]<mailto:[email protected]>
<[email protected]<mailto:[email protected]>> On
Behalf Of Joakim Erdfelt
Sent: Thursday, July 18, 2019 7:29 PM
To: JETTY user mailing list
<[email protected]<mailto:[email protected]>>
Subject: Re: [jetty-users] ProxyServlet$Transparent returns 502 for external
sites
Start by upgrading your version of Jetty, and try again.
Version 9.0 was an experimental / transitional release series between Servlet
3.0 (Jetty 8) and 3.1 (Jetty 9).
That series has been EOL (End of Life) for a long time. (many years now)
https://www.eclipse.org/jetty/documentation/current/what-jetty-version.html
Joakim Erdfelt / [email protected]<mailto:[email protected]>
On Thu, Jul 18, 2019 at 11:50 AM Houtman, Roland
<[email protected]<mailto:[email protected]>> wrote:
Hi,
I’m trying to use the ProxyServlet$Transparent
So far I am succeeding when proxying HTTP requests to my local GeoServer
But when I proxy to a www URL, then I get 502 bad gateway on two separate
servers.
I’m working from office, so I do work behind a proxy.
What are things I can check to come closer to fixing this issue?
I listed the test URLS in the web.xml for reference and minimal-test-setup
Using jetty-9.0.7.v20131107
Kind regards,
Roland
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