JVM crash in JIT-compiled org.apache.http.impl.cookie.BestMatchSpec.formatCookies() method

Environment

• JBoss Enterprise Application Platform (EAP)
  • 5.x
  • 6.x
• Java 7

Issue

• Our JBoss server crashes with the fatal error log containing:

    # A fatal error has been detected by the Java Runtime Environment:
    #
    #  SIGSEGV (0xb) at pc=0x00007f5b73e6d705, pid=31205, tid=140029100357376
    #
    # Problematic frame:
    # J  org.apache.http.impl.cookie.BestMatchSpec.formatCookies(Ljava/util/List;)Ljava/util/List;
  

• Using Apache http client libary in our application, we sporadically get the following exception:

    Caused by: java.util.NoSuchElementException: 
        at java.util.ArrayList$Itr.next(ArrayList.java:757)
        at org.apache.http.impl.cookie.BestMatchSpec.formatCookies(BestMatchSpec.java:189)
        at org.apache.http.client.protocol.RequestAddCookies.process(RequestAddCookies.java:196)
        at org.apache.http.protocol.ImmutableHttpProcessor.process(ImmutableHttpProcessor.java:108)
        at org.apache.http.protocol.HttpRequestExecutor.preProcess(HttpRequestExecutor.java:174)
        at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:462)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754) 
  

Resolution

Upgrade to JDK 1.7u60 or later, or JDK 8.

• As a work-around add one of the following:
  • -XX:-LoopUnswitching
  • -XX:CompileCommand=exclude,org/apache/http/impl/cookie/BestMatchSpec,formatCookies

Root Cause

• This appears to be the issue that is generated by this Content from github.com is not included.reproducer or this Content from github.com is not included.reproducer.
• Content from issues.apache.org is not included.HTTPCLIENT-1173
• Content from bugs.sun.com is not included.JDK-8021898 : Broken JIT compiler optimization for loop unswitching

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