Hello,
today I got feedback from users, that pages are sometimes not shown.
After pressing F5 the website shows up again.
So this error also has effects on client side.
I am not sure if it is related to Tomcat 10 Upgrade. At least I don’t see that
error in the Tomcat 9 logfiles.
After switching to Tomcat 10, many errors show up each day in the
localhost-logfile.
Did anything change in http2-protocol in Tomcat 10 ?
Any ideas how to narrow down the problem?
Greetings,
Thomas
-----Ursprüngliche Nachricht-----
Gesendet: Montag, 7. März 2022 14:26
An: Tomcat Users List <users@tomcat.apache.org>
Betreff: Many IllegalStateException when using http2 protocol
Hello,
Since upgrading from Tomcat 9.0.56 to Tomcat 10.0.16, the localhost-logfile is
filling up with stacks of the form:
07-Mar-2022 07:24:01.780 SCHWERWIEGEND [https-openssl-nio-443-exec-21]
org.apache.catalina.core.ApplicationDispatcher.invoke Servlet.service() for
servlet [jsp] threw exception
java.lang.IllegalStateException: Connection [66], Stream [113], Unable
to write to stream once it has been closed
at
org.apache.coyote.http2.Stream$StreamOutputBuffer.doWrite(Stream.java:843)
at
org.apache.coyote.http11.filters.GzipOutputFilter$FakeOutputStream.write(GzipOutputFilter.java:159)
at
java.base/java.util.zip.DeflaterOutputStream.deflate(DeflaterOutputStream.java:252)
at
java.base/java.util.zip.DeflaterOutputStream.write(DeflaterOutputStream.java:210)
at
java.base/java.util.zip.GZIPOutputStream.write(GZIPOutputStream.java:148)
at
org.apache.coyote.http11.filters.GzipOutputFilter.doWrite(GzipOutputFilter.java:69)
at
org.apache.coyote.http2.Http2OutputBuffer.doWrite(Http2OutputBuffer.java:59)
at org.apache.coyote.Response.doWrite(Response.java:625)
at
org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:340)
at
org.apache.catalina.connector.OutputBuffer.flushByteBuffer(OutputBuffer.java:783)
at
org.apache.catalina.connector.OutputBuffer.realWriteChars(OutputBuffer.java:453)
at
org.apache.catalina.connector.OutputBuffer.flushCharBuffer(OutputBuffer.java:788)
at
org.apache.catalina.connector.OutputBuffer.append(OutputBuffer.java:727)
at
org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:505)
at
org.apache.catalina.connector.CoyoteWriter.write(CoyoteWriter.java:148)
at
org.apache.catalina.filters.ExpiresFilter$XPrintWriter.write(ExpiresFilter.java:850)
at
org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:275)
at java.base/java.io.PrintWriter.write(PrintWriter.java:506)
at
org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:275)
at java.base/java.io.PrintWriter.write(PrintWriter.java:506)
at
org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:112)
at
org.apache.jasper.runtime.JspWriterImpl.flush(JspWriterImpl.java:160)
at
org.apache.jsp.WEB_002dINF.jsp.businessrelations.ticket_005frelations_inc_jsp._jspService(ticket_005frelations_inc_jsp.java:702)
...
The jsp-file varies between the stacktraces, so it is not related to a certain
jsp-File.
The stream.java looks like (which didn’t change from Tomcat 9 to 10):
@Override
public final synchronized int doWrite(ByteBuffer chunk) throws
IOException {
if (closed) {
throw new IllegalStateException(
sm.getString("stream.closed", getConnectionId(),
getIdAsString()));
}
The generated java file from the jsp file only catches IOException:
...
if (!(t instanceof jakarta.servlet.jsp.SkipPageException)){
out = _jspx_out;
if (out != null && out.getBufferSize() != 0)
try {
if (response.isCommitted()) {
out.flush();
} else {
out.clearBuffer();
}
} catch (java.io.IOException e) {}
if (_jspx_page_context != null)
_jspx_page_context.handlePageException(t);
else throw new ServletException(t);
}
It seems like the browser is sometimes closing the stream and this causes
Tomcat to write exceptions in the localhost-logfile.
Is there any way to prevent this?
It is strange, that it didn’t happen with Tomcat 9 or maybe a Firefox-Update is
causing the issue(?) Access-log shows Firefox 97.
Greetings, Thomas
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