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diff --git a/core/src/main/java/io/undertow/conduits/ChunkedStreamSinkConduit.java b/core/src/main/java/io/undertow/conduits/ChunkedStreamSinkConduit.java
index 1e70155..b5fb6b4 100644
--- a/core/src/main/java/io/undertow/conduits/ChunkedStreamSinkConduit.java
+++ b/core/src/main/java/io/undertow/conduits/ChunkedStreamSinkConduit.java
@@ -82,7 +82,8 @@ public class ChunkedStreamSinkConduit extends AbstractStreamSinkConduit<StreamSi
     private int state;
     private int chunkleft = 0;
 
-    private final ByteBuffer chunkingBuffer = ByteBuffer.allocate(14); //14 is the most
+    private final ByteBuffer chunkingBuffer = ByteBuffer.allocate(12); //12 is the most

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diff --git a/servlet/src/test/java/io/undertow/servlet/test/streams/ServletInputStreamTestCase.java b/servlet/src/test/java/io/undertow/servlet/test/streams/ServletInputStreamTestCase.java
index fb00498..d423189 100644
--- a/servlet/src/test/java/io/undertow/servlet/test/streams/ServletInputStreamTestCase.java
+++ b/servlet/src/test/java/io/undertow/servlet/test/streams/ServletInputStreamTestCase.java
@@ -95,6 +95,16 @@ public class ServletInputStreamTestCase {
         //}
     }
 
+    @Test
+    public void testAsyncServletInputStreamWithEmptyRequestBody() {

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This is in reference to https://plus.google.com/105596541985629444566/posts/27y819XoT2V
to show simple steps I took to try and reproduce the described issue based upon the
information available. This is very simple benchmarking with an almost vanilla Rails 4
application using sqlite as the database so is not useful other than to demonstrate the
out of the box performance with TorqueBox and Trinidad under these situations is very
close.

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I've added more comments to this code to make it more clear what
everything does.

ActiveSupport::Testing::Isolation runs its tests in parallel, and
JRuby has real multithreading. So, what happens under JRuby is
the first test executes, sets the environment variables, and
spawns a child process. In parallel, a second test executes, sets
the environment variables to different values, and spawns another
child process. It's this setting of environment variables that is
a problem - the second test is being run in parallel and sets the

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require 'benchmark'
require 'json/ext'
 
NUM_THREADS = 40
NUM_PARSES = 20_000
 
def run_test(json)
puts Benchmark.measure {
threads = NUM_THREADS.times.map do
Thread.new do

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require 'benchmark'
require 'json/ext'

NUM_THREADS = 40
NUM_PARSES = 20_000

def run_test(json)
  puts Benchmark.measure {
  threads = NUM_THREADS.times.map do
    Thread.new do

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$ bin/jruby -S gem install atomic
Fetching: atomic-1.1.16-java.gem (100%)
Successfully installed atomic-1.1.16-java
1 gem installed

$ bin/jruby ~/tmp/rubygems_java_ext_broken.rb 
absolute paths are broken
relative paths work

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autoload :ProxyObject, 'proxy_object.rb'
require 'proxy_object'

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diff --git a/lib/async.js b/lib/async.js
index 394c41c..8d91ab5 100644
--- a/lib/async.js
+++ b/lib/async.js
@@ -832,6 +832,120 @@
         return q;
     };
 
+      async.indexedQueue = function (worker, concurrency) {
+        if (concurrency === undefined) {

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num_runtimes = 10

puts "Creating runtimes..."
num_runtimes.times do
  instance = org.jruby.Ruby.newInstance
  instance.evalScriptlet <<-EOS
    require "socket"
    server = TCPServer.new(0)
    Thread.new do
      begin