https://bz.apache.org/bugzilla/show_bug.cgi?id=60451
Bug ID: 60451
Summary: java.lang.ArrayIndexOutOfBoundsException when a
servlet writes more than the output buffer max length
on a connection to be upgraded to HTTP/2
Product: Tomcat 8
Version: 8.5.8
Hardware: PC
OS: Linux
Status: NEW
Severity: regression
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: l.pe...@senat.fr
Target Milestone: ----
I have a simple servlet producing files in Excel format using Apache POI.
It basically does a
wbk.write(resp.getOutputStream());
where wbk is an instance of org.apache.poi.ss.usermodel.Workbook and resp is an
instance of HttpServletResponse.
When my SSL connector is parametered this way
<Connector port="8443" SSLEnabled="true"
protocol="org.apache.coyote.http11.Http11AprProtocol"
maxThreads="150" scheme="https" secure="true"
sslProtocol="TLS"
sslImplementationName="org.apache.tomcat.util.net.openssl.OpenSSLImplementation"
SSLCertificateFile="${catalina.home}/conf/certificate.crt"
SSLCertificateKeyFile="${catalina.home}/conf/privateKey.key"
server="Apache-Coyote/1.1"
URIEncoding="UTF-8">
<UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" />
</Connector>
in server.xml, I have the following exception.
07-Dec-2016 16:24:58.603 GRAVE [https-openssl-apr-8443-exec-19]
org.apache.catalina.core.StandardWrapperValve.invoke "Servlet.service()" pour
la servlet fr.senat.presences.servlets.ExcelPresencesServlet a généré une
exception
java.lang.ArrayIndexOutOfBoundsException: -23
at org.apache.coyote.http2.HPackHuffman.encode(HPackHuffman.java:441)
at
org.apache.coyote.http2.HpackEncoder.writeHuffmanEncodableValue(HpackEncoder.java:228)
at org.apache.coyote.http2.HpackEncoder.encode(HpackEncoder.java:190)
at
org.apache.coyote.http2.Http2UpgradeHandler.writeHeaders(Http2UpgradeHandler.java:534)
at org.apache.coyote.http2.Stream.writeHeaders(Stream.java:326)
at
org.apache.coyote.http2.StreamProcessor.prepareResponse(StreamProcessor.java:98)
at
org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:263)
at org.apache.coyote.Response.action(Response.java:170)
at org.apache.coyote.Response.sendHeaders(Response.java:352)
at
org.apache.coyote.http2.Stream$StreamOutputBuffer.doWrite(Stream.java:582)
at org.apache.coyote.Response.doWrite(Response.java:517)
at
org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:351)
at
org.apache.catalina.connector.OutputBuffer.flushByteBuffer(OutputBuffer.java:808)
at
org.apache.catalina.connector.OutputBuffer.append(OutputBuffer.java:713)
at
org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:391)
at
org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:369)
at
org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:96)
at
org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:89)
at org.apache.poi.poifs.storage.BigBlock.doWriteData(BigBlock.java:67)
at
org.apache.poi.poifs.storage.DocumentBlock.writeData(DocumentBlock.java:195)
at org.apache.poi.poifs.storage.BigBlock.writeBlocks(BigBlock.java:98)
at
org.apache.poi.poifs.storage.DocumentBlock.writeBlocks(DocumentBlock.java:34)
at
org.apache.poi.poifs.filesystem.POIFSDocument$BigBlockStore.writeBlocks(POIFSDocument.java:547)
at
org.apache.poi.poifs.filesystem.POIFSDocument.writeBlocks(POIFSDocument.java:303)
at
org.apache.poi.poifs.filesystem.POIFSFileSystem.writeFilesystem(POIFSFileSystem.java:380)
at
org.apache.poi.hssf.usermodel.HSSFWorkbook.write(HSSFWorkbook.java:1308)
at
fr.senat.exporters.ExcelExporter.exportActivite(ExcelExporter.java:578)
at
fr.senat.presences.servlets.ExcelPresencesServlet.doGetActivite(ExcelPresencesServlet.java:89)
at
fr.senat.presences.servlets.ExcelPresencesServlet.doGet(ExcelPresencesServlet.java:39)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
fr.senat.presences.filters.PseudoRequestScopeEMFilter.doFilter(PseudoRequestScopeEMFilter.java:95)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:589)
at
fr.senat.tomcat.valve.JwtValve.handleAuthentication(JwtValve.java:320)
at fr.senat.tomcat.valve.JwtValve.invoke(JwtValve.java:235)
at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
at
org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:291)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
at
org.apache.coyote.http2.StreamProcessor.service(StreamProcessor.java:219)
at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.http2.StreamProcessor.run(StreamProcessor.java:63)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
When debugging, I noticed that POI tries to write more than 8192 bytes to the
output buffer. 8192 being the output buffer size, it is not resized to be
bigger than 8192 bytes. This case is properly handled when not using HTTP/2.
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