HI Team
Could you please Provide steps for installion of tomcat 9.0 version. We are
very new for it
Thanks & Regards,
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PrabuGanesan
Consultant|MS-Nordics
capgemini India Pvt. Ltd. | Bangalore
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-----Original Message-----
From: Lasse Lindqvist <lasse.k.lindqv...@gmail.com>
Sent: 12 July 2023 17:59
To: users@tomcat.apache.org
Subject: Tomcat returning faulty "empty" header
******This mail has been sent from an external source. Do not reply to it, or
open any links/attachments unless you are sure of the sender's identity.******
Hi. Every once in a while in automatic tests I see an error
Caused by: org.apache.http.ProtocolException: Invalid header: :
at
app//org.apache.http.impl.io.AbstractMessageParser.parseHeaders(AbstractMessageParser.java:230)
at
app//org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:266)
at
app//org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163)
at
app//org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:157)
at
app//org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273)
at
app//org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
at
app//org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272)
at
app//org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
at
app//org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
at
app//org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at
app//org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
Meaning that the header contents would be just ": ", suggesting that it has an
empty key and empty value.
The service being called is a Spring Boot 2.7 application that has a simple
Controller with no custom header definitions.
It does return a response with
.contentType(MediaType.APPLICATION_OCTET_STREAM)
and body of StreamingResponseBody though.
I am wondering if this is something that might be on the Tomcat side, or Spring
side. But even if on Spring side, should Tomcat perhaps prevent the creation
of these empty headers, as at least Apache HTTP client considers them invalid
and will not choose to ignore them.
This reproduces relatively rarely, and by rerunning tests it normally
disappears, so I have not been able to catch the root issue.
Maybe it is related to
https://github.com/spring-projects/spring-security/issues/9175 and fully a
Spring issue even though my error is not exactly the same as those in the
Github issue?
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