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List:       httpclient-commons-dev
Subject:    [jira] [Resolved] (HTTPCLIENT-1877) java.io.EOFException: Unexpected end of ZLIB input stream
From:       "Oleg Kalnichevski (JIRA)" <jira () apache ! org>
Date:       2017-10-26 11:10:00
Message-ID: JIRA.13111645.1508835152000.67322.1509016200203 () Atlassian ! JIRA
[Download RAW message or body]


     [ https://issues.apache.org/jira/browse/HTTPCLIENT-1877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel \
]

Oleg Kalnichevski resolved HTTPCLIENT-1877.
-------------------------------------------
    Resolution: Invalid

I did some more digging. Commons Compress also fails to decompress the content.

{noformat}
java.util.zip.ZipException: incorrect header check

	at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:164)
	at org.apache.commons.compress.compressors.deflate.DeflateCompressorInputStream.read(DeflateCompressorInputStream.java:77)
  at java.io.InputStream.read(InputStream.java:101)
	at org.apache.http.client.entity.TestDeflate.testStuffBin(TestDeflate.java:65)
{noformat}

It also fails to detect a format of the content

{noformat}
org.apache.commons.compress.compressors.CompressorException: No Compressor found for \
the stream signature.

	at org.apache.commons.compress.compressors.CompressorStreamFactory.detect(CompressorStreamFactory.java:482)
  at org.apache.http.client.entity.TestDeflate.testStuffBin(TestDeflate.java:66)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
  at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
  at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
  at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
  at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
  at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
  at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
  at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
{noformat}

It turns out {{InflaterInputStream}} _can_ decompress the content of the file, at \
least partially, by using {{Inflater}} in {{nowrap}} mode. However based on the state \
of {{Inflater}} object the stream is expected to have more data. 

If you like to support such content in your code and silently ignore the EOF \
condition you can do so by extending {{DeflateInputStream}} and catching \
{{java.io.EOFException}} but it is not something HttpClient should be doing by \
default.

Oleg 

> java.io.EOFException: Unexpected end of ZLIB input stream
> ---------------------------------------------------------
> 
> Key: HTTPCLIENT-1877
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1877
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient (classic)
> Affects Versions: 4.5.3
> Environment: Java HotSpot(TM) 64-Bit Server VM  1.8.0_144
> Windows 7 Enterprise
> Reporter: Philippe Mouawad
> Attachments: stuff.bin, wire.txt
> 
> 
> At JMeter project a user has reported an issue that generates this stacktrace :
> {code:java}
> java.io.EOFException: Unexpected end of ZLIB input stream
> 	at java.util.zip.InflaterInputStream.fill(Unknown Source)
> 	at java.util.zip.InflaterInputStream.read(Unknown Source)
> 	at org.apache.http.client.entity.DeflateInputStream.read(DeflateInputStream.java:88)
>   at org.apache.http.client.entity.LazyDecompressingInputStream.read(LazyDecompressingInputStream.java:70)
>   at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:135)
> 	at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:148)
> 	at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.readResponse(HTTPSamplerBase.java:1814)
>   at org.apache.jmeter.protocol.http.sampler.HTTPAbstractImpl.readResponse(HTTPAbstractImpl.java:440)
>   at org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.sample(HTTPHC4Impl.java:433)
>   at org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:74)
>   at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1189)
>   at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1178)
>   at org.apache.jmeter.threads.JMeterThread.executeSamplePackage(JMeterThread.java:491)
>   at org.apache.jmeter.threads.JMeterThread.processSampler(JMeterThread.java:425)
> 	at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:254)
> 	at java.lang.Thread.run(Unknown Source)
> {code}
> Although this issue has been reported in the past through \
> https://issues.apache.org/jira/browse/HTTPCLIENT-1699 , it is not yet fixed. I have \
> previously reported it under https://issues.apache.org/jira/browse/HTTPCLIENT-1869 \
> and was requested to provide more details In the attached log, the issue occurs on \
> second request. Removing Deflate from Accept-Encoding is a workaround, so issue is \
> located in Deflate management, GZIP works fine.



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