Hi,
I see the below exception when I try to load my application(https://domain/) in
the browser.
java.lang.IllegalStateException: WRITER
at org.eclipse.jetty.server.Response.getOutputStream(Response.java:862)
[192:org.eclipse.jetty.server:9.3.21.v20170918]
at
org.eclipse.jetty.rewrite.handler.RedirectRegexRule.apply(RedirectRegexRule.java:99)
[189:org.eclipse.jetty.rewrite:9.3.21.v20170918]
at
org.eclipse.jetty.rewrite.handler.RegexRule.matchAndApply(RegexRule.java:75)
[189:org.eclipse.jetty.rewrite:9.3.21.v20170918]
at
org.eclipse.jetty.rewrite.handler.RuleContainer.apply(RuleContainer.java:169)
[189:org.eclipse.jetty.rewrite:9.3.21.v20170918]
at
org.eclipse.jetty.rewrite.handler.RuleContainer.matchAndApply(RuleContainer.java:149)
[189:org.eclipse.jetty.rewrite:9.3.21.v20170918]
at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:330)
[189:org.eclipse.jetty.rewrite:9.3.21.v20170918]
at
org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:104)
[216:org.ops4j.pax.web.pax-web-jetty:6.0.9]
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
[192:org.eclipse.jetty.server:9.3.21.v20170918]
at org.eclipse.jetty.server.Server.handle(Server.java:534)
[192:org.eclipse.jetty.server:9.3.21.v20170918]
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333)
[192:org.eclipse.jetty.server:9.3.21.v20170918]
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
[192:org.eclipse.jetty.server:9.3.21.v20170918]
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
[184:org.eclipse.jetty.io:9.3.21.v20170918]
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
[184:org.eclipse.jetty.io:9.3.21.v20170918]
at
org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:251)
[184:org.eclipse.jetty.io:9.3.21.v20170918]
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
[184:org.eclipse.jetty.io:9.3.21.v20170918]
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
[184:org.eclipse.jetty.io:9.3.21.v20170918]
at
org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
[184:org.eclipse.jetty.io:9.3.21.v20170918]
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
[195:org.eclipse.jetty.util:9.3.21.v20170918]
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
[195:org.eclipse.jetty.util:9.3.21.v20170918]
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
[195:org.eclipse.jetty.util:9.3.21.v20170918]
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
[195:org.eclipse.jetty.util:9.3.21.v20170918]
at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
[195:org.eclipse.jetty.util:9.3.21.v20170918]
at java.lang.Thread.run(Thread.java:748) [?:?]
I have my app deployed on a certain path 'https://domain/xyz'.
Now, I have a added a Rule to the RewriteHandler in my jetty.xml, as below:
which redirects '/' to '/xyz'
<Call name="addRule">
<Arg>
<New class="org.eclipse.jetty.rewrite.handler.RedirectRegexRule">
<Set name="regex">^/$</Set>
<Set name="location">/xyz</Set>
</New>
</Arg>
</Call>
I see above exception when I try to hit https://domain/
I checked the class org.eclipse.jetty.rewrite.handler.RedirectRegexRule(jetty
9.3.21),
where the problem is reported at(line number 99).
85 @Override
86 protected String apply(String target, HttpServletRequest request,
HttpServletResponse response, Matcher matcher)
87 throws IOException
88 {
89 target=_location;
90 for (int g=1;g<=matcher.groupCount();g++)
91 {
92 String group = matcher.group(g);
93 target=target.replaceAll("\\$"+g,group);
94 }
95
96 target = response.encodeRedirectURL(target);
97
response.setHeader("Location",RedirectUtil.toRedirectURL(request,target));
98 response.setStatus(_statusCode);
99 response.getOutputStream().flush(); // no output / content
100 response.getOutputStream().close();
101 return target;
102 }
Jetty 8.x didn't have this problem because it did the following in the 'apply'
method. It just redirected the response.
@Override
protected String apply(String target, HttpServletRequest request,
HttpServletResponse response, Matcher matcher)
throws IOException
{
target=_replacement;
for (int g=1;g<=matcher.groupCount();g++)
{
String group = matcher.group(g);
target=target.replaceAll("\\$"+g,group);
}
response.sendRedirect(response.encodeRedirectURL(target));
return target;
}
I am using karaf 4.1.5 container with has jetty v9.3.21.
Is there something we could do to fix this one? or get around it?
Regards,
Neehal
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