diff --git a/build.sbt b/build.sbt
new file mode 100644
index 0000000..91c04a7
--- /dev/null
+++ b/build.sbt
@@ -0,0 +1,107 @@
+import SonatypeKeys._
+
+sonatypeSettings
+
+name := "snappy-java"
+
+organization := "org.xerial.snappy" 
+
+organizationName := "xerial.org"
+
+description  := "snappy-java: A fast compression/decompression library"
+
+profileName := "org.xerial" 
+
+version := "1.1.1-M3" 
+
+pomExtra := {
+   <url>https://github.comm/xerial/snappy-java</url>
+   <licenses>
+       <license>
+           <name>The Apache Software License, Version 2.0</name>
+            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+            <distribution>repo</distribution>
+        </license>
+    </licenses>
+    <developers>
+        <developer>
+            <id>leo</id>
+            <name>Taro L. Saito</name>
+            <email>leo@xerial.org</email>
+            <organization>Xerial Project</organization>
+            <roles>
+                <role>Architect</role>
+                <role>Project Manager</role>
+                <role>Chief Developer</role>
+            </roles>
+            <timezone>+9</timezone>
+        </developer>
+    </developers>
+    <organization>
+        <name>xerial.org</name>
+        <url>http://xerial.org/</url>
+    </organization>
+    <issueManagement>
+        <email>leo@xerial.org</email>
+        <system>GitHub</system>
+        <organization>Xerial Project</organization>
+        <url>http://github.com/xerial/snappy-java/issues/list</url>
+    </issueManagement>
+    <role>Architect</role>
+    <inceptionYear>2011</inceptionYear>
+    <scm>
+        <connection>scm:git@github.com:xerial/snappy-java.git</connection>
+        <developerConnection>scm:git:git@github.com:xerial/snappy-java.git</developerConnection>
+        <url>git@github.com:xerial/snappy-java.git</url>
+    </scm>
+}
+
+javacOptions in (Compile, compile) ++= Seq("-encoding", "UTF-8", "-Xlint:unchecked", "-Xlint:deprecation", "-source", "1.6", "-target", "1.6")
+
+autoScalaLibrary := false
+
+crossPaths := false
+
+logBuffered in Test := false
+
+incOptions := incOptions.value.withNameHashing(true)
+
+libraryDependencies ++= Seq(
+   "junit" % "junit" % "4.8.2" % "test",
+   "org.codehaus.plexus" % "plexus-classworlds" % "2.4" % "test",
+   "org.xerial" % "xerial-core" % "1.0.21" % "test",
+   "org.osgi" % "org.osgi.core" % "4.3.0" % "provided",
+   "com.novocode" % "junit-interface" % "0.10" % "test"
+)
+
+osgiSettings
+
+
+OsgiKeys.exportPackage := Seq("org.xerial.snappy")
+
+OsgiKeys.bundleSymbolicName := "org.xerial.snappy.snappy-java"
+
+OsgiKeys.bundleActivator := Option("org.xerial.snappy.SnappyBundleActivator")
+
+OsgiKeys.importPackage := Seq("""org.osgi.framework;version="[1.5,2)"""")
+
+OsgiKeys.additionalHeaders := Map(
+  "Bundle-NativeCode" -> Seq(
+"org/xerial/snappy/native/Windows/x86_64/snappyjava.dll;osname=win32;processor=x86-64",
+"org/xerial/snappy/native/Windows/x86/snappyjava.dll;osname=win32;processor=x86",
+"org/xerial/snappy/native/Mac/x86/libsnappyjava.jnilib;osname=macosx;processor=x86",
+"org/xerial/snappy/native/Mac/x86_64/libsnappyjava.jnilib;osname=macosx;processor=x86-64",
+"org/xerial/snappy/native/Linux/x86_64/libsnappyjava.so;osname=linux;processor=x86-64",
+"org/xerial/snappy/native/Linux/x86/libsnappyjava.so;osname=linux;processor=x86",
+"org/xerial/snappy/native/Linux/arm/libsnappyjava.so;osname=linux;processor=arm"
+"org/xerial/snappy/native/Linux/ppc64/libsnappyjava.so;osname=linux;processor=ppc64",
+"org/xerial/snappy/native/Linux/ppc64le/libsnappyjava.so;osname=linux;processor=ppc64le",
+"org/xerial/snappy/native/SunOS/x86/libsnappyjava.so;osname=sunos;processor=x86",
+"org/xerial/snappy/native/SunOS/x86_64/libsnappyjava.so;osname=sunos;processor=x86-64",
+"org/xerial/snappy/native/SunOS/sparc/libsnappyjava.so;osname=sunos;processor=sparc"
+).mkString(","),
+ "Bundle-DocURL" -> "http://www.xerial.org/",
+ "Bundle-License" -> "http://www.apache.org/licenses/LICENSE-2.0.txt",
+ "Bundle-ActivationPolicy" -> "lazy",
+ "Bundle-Name" -> "snappy-java: A fast compression/decompression library"
+)
diff --git a/project/build.properties b/project/build.properties
new file mode 100755
index 0000000..6137a3a
--- /dev/null
+++ b/project/build.properties
@@ -0,0 +1,2 @@
+sbt.version=0.13.5
+
diff --git a/project/plugins.sbt b/project/plugins.sbt
new file mode 100755
index 0000000..609b225
--- /dev/null
+++ b/project/plugins.sbt
@@ -0,0 +1,12 @@
+
+addSbtPlugin("com.github.gseitz" % "sbt-release" % "0.7.1")
+
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "0.2.1")
+
+addSbtPlugin("com.typesafe.sbt" % "sbt-pgp" % "0.8.3")
+
+addSbtPlugin("de.johoop" % "findbugs4sbt" % "1.3.0")
+
+addSbtPlugin("de.johoop" % "jacoco4sbt" % "2.1.5")
+
+addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.7.0")
diff --git a/sbt b/sbt
new file mode 100755
index 0000000..e0343df
--- /dev/null
+++ b/sbt
@@ -0,0 +1,481 @@
+#!/usr/bin/env bash
+#
+# A more capable sbt runner, coincidentally also called sbt.
+# Author: Paul Phillips <paulp@typesafe.com>
+
+# todo - make this dynamic
+declare -r sbt_release_version="0.13.1"
+declare -r sbt_unreleased_version="0.13.2-SNAPSHOT" # -sbt-dev doesn't work at present
+declare -r buildProps="project/build.properties"
+
+declare sbt_jar sbt_dir sbt_create sbt_launch_dir
+declare scala_version java_home sbt_explicit_version
+declare verbose debug quiet noshare batch trace_level log_level
+declare sbt_saved_stty
+
+echoerr () { [[ -z "$quiet" ]]           && echo    "$@" >&2; }
+vlog ()    { [[ -n "$verbose$debug" ]] && echoerr "$@"; }
+dlog ()    { [[ -n "$debug" ]]           && echoerr "$@"; }
+
+# we'd like these set before we get around to properly processing arguments
+for arg in "$@"; do
+  case "$arg" in
+    -q|-quiet)    quiet=true ;;
+    -d|-debug)    debug=true ;;
+  -v|-verbose)  verbose=true ;;
+            *)               ;;
+  esac
+done
+
+# spaces are possible, e.g. sbt.version = 0.13.0
+build_props_sbt () {
+  [[ -r "$buildProps" ]] && \
+    grep '^sbt\.version' "$buildProps" | tr '=' ' ' | awk '{ print $2; }'
+}
+
+update_build_props_sbt () {
+  local ver="$1"
+  local old="$(build_props_sbt)"
+
+  [[ -r "$buildProps" ]] && [[ "$ver" != "$old" ]] && {
+    perl -pi -e "s/^sbt\.version\b.*\$/sbt.version=${ver}/" "$buildProps"
+    grep -q '^sbt.version[ =]' "$buildProps" || printf "\nsbt.version=%s\n" "$ver" >> "$buildProps"
+
+    echoerr "!!!"
+    echoerr "!!! Updated file $buildProps setting sbt.version to: $ver"
+    echoerr "!!! Previous value was: $old"
+    echoerr "!!!"
+  }
+}
+
+sbt_version () {
+  if [[ -n "$sbt_explicit_version" ]]; then
+    echo "$sbt_explicit_version"
+  else
+    local v="$(build_props_sbt)"
+    if [[ -n "$v" ]]; then
+      echo "$v"
+    else
+      echo "$sbt_release_version"
+    fi
+  fi
+}
+
+# restore stty settings (echo in particular)
+onSbtRunnerExit() {
+  [[ -n "$sbt_saved_stty" ]] || return
+  dlog ""
+  dlog "restoring stty: $sbt_saved_stty"
+  stty "$sbt_saved_stty"
+  unset sbt_saved_stty
+}
+
+# save stty and trap exit, to ensure echo is reenabled if we are interrupted.
+trap onSbtRunnerExit EXIT
+sbt_saved_stty="$(stty -g 2>/dev/null)"
+dlog "Saved stty: $sbt_saved_stty"
+
+# this seems to cover the bases on OSX, and someone will
+# have to tell me about the others.
+get_script_path () {
+  local path="$1"
+  [[ -L "$path" ]] || { echo "$path" ; return; }
+
+  local target="$(readlink "$path")"
+  if [[ "${target:0:1}" == "/" ]]; then
+    echo "$target"
+  else
+    echo "${path%/*}/$target"
+  fi
+}
+
+die() {
+  echo "Aborting: $@"
+  exit 1
+}
+
+make_url () {
+  version="$1"
+
+  case "$version" in
+        0.7.*) echo "http://simple-build-tool.googlecode.com/files/sbt-launch-0.7.7.jar" ;;
+      0.10.* ) echo "$sbt_launch_repo/org.scala-tools.sbt/sbt-launch/$version/sbt-launch.jar" ;;
+    0.11.[12]) echo "$sbt_launch_repo/org.scala-tools.sbt/sbt-launch/$version/sbt-launch.jar" ;;
+            *) echo "$sbt_launch_repo/org.scala-sbt/sbt-launch/$version/sbt-launch.jar" ;;
+  esac
+}
+
+init_default_option_file () {
+  local overriding_var="${!1}"
+  local default_file="$2"
+  if [[ ! -r "$default_file" && "$overriding_var" =~ ^@(.*)$ ]]; then
+    local envvar_file="${BASH_REMATCH[1]}"
+    if [[ -r "$envvar_file" ]]; then
+      default_file="$envvar_file"
+    fi
+  fi
+  echo "$default_file"
+}
+
+declare -r cms_opts="-XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC"
+declare -r jit_opts="-XX:ReservedCodeCacheSize=256m -XX:+TieredCompilation"
+declare -r default_jvm_opts="-Dfile.encoding=UTF8 -XX:MaxPermSize=384m -Xms512m -Xmx1536m -Xss2m $jit_opts $cms_opts"
+declare -r noshare_opts="-Dsbt.global.base=project/.sbtboot -Dsbt.boot.directory=project/.boot -Dsbt.ivy.home=project/.ivy"
+declare -r latest_28="2.8.2"
+declare -r latest_29="2.9.3"
+declare -r latest_210="2.10.3"
+declare -r latest_211="2.11.0-M5"
+
+declare -r script_path="$(get_script_path "$BASH_SOURCE")"
+declare -r script_name="${script_path##*/}"
+
+# some non-read-onlies set with defaults
+declare java_cmd="java"
+declare sbt_opts_file="$(init_default_option_file SBT_OPTS .sbtopts)"
+declare jvm_opts_file="$(init_default_option_file JVM_OPTS .jvmopts)"
+declare sbt_launch_repo="http://typesafe.artifactoryonline.com/typesafe/ivy-releases"
+
+# pull -J and -D options to give to java.
+declare -a residual_args
+declare -a java_args
+declare -a scalac_args
+declare -a sbt_commands
+
+# args to jvm/sbt via files or environment variables
+declare -a extra_jvm_opts extra_sbt_opts
+
+# if set, use JAVA_HOME over java found in path
+[[ -e "$JAVA_HOME/bin/java" ]] && java_cmd="$JAVA_HOME/bin/java"
+
+# directory to store sbt launchers
+declare sbt_launch_dir="$HOME/.sbt/launchers"
+[[ -d "$sbt_launch_dir" ]] || mkdir -p "$sbt_launch_dir"
+[[ -w "$sbt_launch_dir" ]] || sbt_launch_dir="$(mktemp -d -t sbt_extras_launchers.XXXXXX)"
+
+build_props_scala () {
+  if [[ -r "$buildProps" ]]; then
+    versionLine="$(grep '^build.scala.versions' "$buildProps")"
+    versionString="${versionLine##build.scala.versions=}"
+    echo "${versionString%% .*}"
+  fi
+}
+
+execRunner () {
+  # print the arguments one to a line, quoting any containing spaces
+  [[ "$verbose" || "$debug" ]] && echo "# Executing command line:" && {
+    for arg; do
+      if [[ -n "$arg" ]]; then
+        if printf "%s\n" "$arg" | grep -q ' '; then
+          printf "\"%s\"\n" "$arg"
+        else
+          printf "%s\n" "$arg"
+        fi
+      fi
+    done
+    echo ""
+  }
+
+  if [[ -n "$batch" ]]; then
+    exec </dev/null
+  fi
+  exec "$@"
+}
+
+jar_url () {
+  make_url "$1"
+}
+
+jar_file () {
+  echo "$sbt_launch_dir/$1/sbt-launch.jar"
+}
+
+download_url () {
+  local url="$1"
+  local jar="$2"
+
+  echo "Downloading sbt launcher for $(sbt_version):"
+  echo "  From  $url"
+  echo "    To  $jar"
+
+  mkdir -p "${jar%/*}" && {
+    if which curl >/dev/null; then
+      curl --fail --silent "$url" --output "$jar"
+    elif which wget >/dev/null; then
+      wget --quiet -O "$jar" "$url"
+    fi
+  } && [[ -r "$jar" ]]
+}
+
+acquire_sbt_jar () {
+  for_sbt_version="$(sbt_version)"
+  sbt_url="$(jar_url "$for_sbt_version")"
+  sbt_jar="$(jar_file "$for_sbt_version")"
+
+  [[ -r "$sbt_jar" ]] || download_url "$sbt_url" "$sbt_jar"
+}
+
+usage () {
+  cat <<EOM
+Usage: $script_name [options]
+
+  -h | -help         print this message
+  -v | -verbose      this runner is chattier
+  -d | -debug        set sbt log level to Debug
+  -q | -quiet        set sbt log level to Error
+  -trace <level>     display stack traces with a max of <level> frames (default: -1, traces suppressed)
+  -no-colors         disable ANSI color codes
+  -sbt-create        start sbt even if current directory contains no sbt project
+  -sbt-dir   <path>  path to global settings/plugins directory (default: ~/.sbt/<version>)
+  -sbt-boot  <path>  path to shared boot directory (default: ~/.sbt/boot in 0.11+)
+  -ivy       <path>  path to local Ivy repository (default: ~/.ivy2)
+  -no-share          use all local caches; no sharing
+  -offline           put sbt in offline mode
+  -jvm-debug <port>  Turn on JVM debugging, open at the given port.
+  -batch             Disable interactive mode
+  -prompt <expr>     Set the sbt prompt; in expr, 's' is the State and 'e' is Extracted
+
+  # sbt version (default: from $buildProps if present, else latest release)
+  !!! The only way to accomplish this pre-0.12.0 if there is a build.properties file which
+  !!! contains an sbt.version property is to update the file on disk.  That's what this does.
+  -sbt-version  <version>   use the specified version of sbt (default: $sbt_release_version)
+  -sbt-jar      <path>      use the specified jar as the sbt launcher
+  -sbt-launch-dir <path>    directory to hold sbt launchers (default: $sbt_launch_dir)
+  -sbt-launch-repo <url>    repo url for downloading sbt launcher jar (default: $sbt_launch_repo)
+
+  # scala version (default: as chosen by sbt)
+  -28                       use $latest_28
+  -29                       use $latest_29
+  -210                      use $latest_210
+  -211                      use $latest_211
+  -scala-home <path>        use the scala build at the specified directory
+  -scala-version <version>  use the specified version of scala
+  -binary-version <version> use the specified scala version when searching for dependencies
+
+  # java version (default: java from PATH, currently $(java -version 2>&1 | grep version))
+  -java-home <path>         alternate JAVA_HOME
+
+  # passing options to the jvm - note it does NOT use JAVA_OPTS due to pollution
+  # The default set is used if JVM_OPTS is unset and no -jvm-opts file is found
+  <default>        $default_jvm_opts
+  JVM_OPTS         environment variable holding either the jvm args directly, or
+                   the reference to a file containing jvm args if given path is prepended by '@' (e.g. '@/etc/jvmopts')
+                   Note: "@"-file is overridden by local '.jvmopts' or '-jvm-opts' argument.
+  -jvm-opts <path> file containing jvm args (if not given, .jvmopts in project root is used if present)
+  -Dkey=val        pass -Dkey=val directly to the jvm
+  -J-X             pass option -X directly to the jvm (-J is stripped)
+
+  # passing options to sbt, OR to this runner
+  SBT_OPTS         environment variable holding either the sbt args directly, or
+                   the reference to a file containing sbt args if given path is prepended by '@' (e.g. '@/etc/sbtopts')
+                   Note: "@"-file is overridden by local '.sbtopts' or '-sbt-opts' argument.
+  -sbt-opts <path> file containing sbt args (if not given, .sbtopts in project root is used if present)
+  -S-X             add -X to sbt's scalacOptions (-S is stripped)
+EOM
+}
+
+addJava () {
+  dlog "[addJava] arg = '$1'"
+  java_args=( "${java_args[@]}" "$1" )
+}
+addSbt () {
+  dlog "[addSbt] arg = '$1'"
+  sbt_commands=( "${sbt_commands[@]}" "$1" )
+}
+addScalac () {
+  dlog "[addScalac] arg = '$1'"
+  scalac_args=( "${scalac_args[@]}" "$1" )
+}
+addResidual () {
+  dlog "[residual] arg = '$1'"
+  residual_args=( "${residual_args[@]}" "$1" )
+}
+addResolver () {
+  addSbt "set resolvers += $1"
+}
+addDebugger () {
+  addJava "-Xdebug"
+  addJava "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=$1"
+}
+setScalaVersion () {
+  [[ "$1" == *"-SNAPSHOT" ]] && addResolver 'Resolver.sonatypeRepo("snapshots")'
+  addSbt "++ $1"
+}
+
+process_args ()
+{
+  require_arg () {
+    local type="$1"
+    local opt="$2"
+    local arg="$3"
+
+    if [[ -z "$arg" ]] || [[ "${arg:0:1}" == "-" ]]; then
+      die "$opt requires <$type> argument"
+    fi
+  }
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+       -h|-help) usage; exit 1 ;;
+    -v|-verbose) verbose=true && log_level=Info && shift ;;
+      -d|-debug) debug=true && log_level=Debug && shift ;;
+      -q|-quiet) quiet=true && log_level=Error && shift ;;
+
+         -trace) require_arg integer "$1" "$2" && trace_level="$2" && shift 2 ;;
+           -ivy) require_arg path "$1" "$2" && addJava "-Dsbt.ivy.home=$2" && shift 2 ;;
+     -no-colors) addJava "-Dsbt.log.noformat=true" && shift ;;
+      -no-share) noshare=true && shift ;;
+      -sbt-boot) require_arg path "$1" "$2" && addJava "-Dsbt.boot.directory=$2" && shift 2 ;;
+       -sbt-dir) require_arg path "$1" "$2" && sbt_dir="$2" && shift 2 ;;
+     -debug-inc) addJava "-Dxsbt.inc.debug=true" && shift ;;
+       -offline) addSbt "set offline := true" && shift ;;
+     -jvm-debug) require_arg port "$1" "$2" && addDebugger "$2" && shift 2 ;;
+         -batch) batch=true && shift ;;
+        -prompt) require_arg "expr" "$1" "$2" && addSbt "set shellPrompt in ThisBuild := (s => { val e = Project.extract(s) ; $2 })" && shift 2 ;;
+
+    -sbt-create) sbt_create=true && shift ;;
+       -sbt-jar) require_arg path "$1" "$2" && sbt_jar="$2" && shift 2 ;;
+   -sbt-version) require_arg version "$1" "$2" && sbt_explicit_version="$2" && shift 2 ;;
+       -sbt-dev) sbt_explicit_version="$sbt_unreleased_version" && shift ;;
+-sbt-launch-dir) require_arg path "$1" "$2" && sbt_launch_dir="$2" && shift 2 ;;
+-sbt-launch-repo) require_arg path "$1" "$2" && sbt_launch_repo="$2" && shift 2 ;;
+ -scala-version) require_arg version "$1" "$2" && setScalaVersion "$2" && shift 2 ;;
+-binary-version) require_arg version "$1" "$2" && addSbt "set scalaBinaryVersion in ThisBuild := \"$2\"" && shift 2 ;;
+    -scala-home) require_arg path "$1" "$2" && addSbt "set every scalaHome := Some(file(\"$2\"))" && shift 2 ;;
+     -java-home) require_arg path "$1" "$2" && java_cmd="$2/bin/java" && shift 2 ;;
+      -sbt-opts) require_arg path "$1" "$2" && sbt_opts_file="$2" && shift 2 ;;
+      -jvm-opts) require_arg path "$1" "$2" && jvm_opts_file="$2" && shift 2 ;;
+
+            -D*) addJava "$1" && shift ;;
+            -J*) addJava "${1:2}" && shift ;;
+            -S*) addScalac "${1:2}" && shift ;;
+            -28) setScalaVersion "$latest_28" && shift ;;
+            -29) setScalaVersion "$latest_29" && shift ;;
+           -210) setScalaVersion "$latest_210" && shift ;;
+           -211) setScalaVersion "$latest_211" && shift ;;
+
+              *) addResidual "$1" && shift ;;
+    esac
+  done
+}
+
+# process the direct command line arguments
+process_args "$@"
+
+# skip #-styled comments and blank lines
+readConfigFile() {
+  while read line; do
+    [[ $line =~ ^# ]] || [[ -z $line ]] || echo "$line"
+  done < "$1"
+}
+
+# if there are file/environment sbt_opts, process again so we
+# can supply args to this runner
+if [[ -r "$sbt_opts_file" ]]; then
+  vlog "Using sbt options defined in file $sbt_opts_file"
+  while read opt; do extra_sbt_opts+=("$opt"); done < <(readConfigFile "$sbt_opts_file")
+elif [[ -n "$SBT_OPTS" && ! ("$SBT_OPTS" =~ ^@.*) ]]; then
+  vlog "Using sbt options defined in variable \$SBT_OPTS"
+  extra_sbt_opts=( $SBT_OPTS )
+else
+  vlog "No extra sbt options have been defined"
+fi
+
+[[ -n "$extra_sbt_opts" ]] && process_args "${extra_sbt_opts[@]}"
+
+# reset "$@" to the residual args
+set -- "${residual_args[@]}"
+argumentCount=$#
+
+# only exists in 0.12+
+setTraceLevel() {
+  case "$(sbt_version)" in
+    "0.7."* | "0.10."* | "0.11."* )
+      echoerr "Cannot set trace level in sbt version $(sbt_version)"
+    ;;
+    *)
+      addSbt "set every traceLevel := $trace_level"
+    ;;
+  esac
+}
+
+# set scalacOptions if we were given any -S opts
+[[ ${#scalac_args[@]} -eq 0 ]] || addSbt "set scalacOptions in ThisBuild += \"${scalac_args[@]}\""
+
+# Update build.properties on disk to set explicit version - sbt gives us no choice
+[[ -n "$sbt_explicit_version" ]] && update_build_props_sbt "$sbt_explicit_version"
+vlog "Detected sbt version $(sbt_version)"
+
+[[ -n "$scala_version" ]] && echoerr "Overriding scala version to $scala_version"
+
+# no args - alert them there's stuff in here
+(( argumentCount > 0 )) || {
+  vlog "Starting $script_name: invoke with -help for other options"
+  residual_args=( shell )
+}
+
+# verify this is an sbt dir or -create was given
+[[ -r ./build.sbt || -d ./project || -n "$sbt_create" ]] || {
+  cat <<EOM
+$(pwd) doesn't appear to be an sbt project.
+If you want to start sbt anyway, run:
+  $0 -sbt-create
+
+EOM
+  exit 1
+}
+
+# pick up completion if present; todo
+[[ -r .sbt_completion.sh ]] && source .sbt_completion.sh
+
+# no jar? download it.
+[[ -r "$sbt_jar" ]] || acquire_sbt_jar || {
+  # still no jar? uh-oh.
+  echo "Download failed. Obtain the jar manually and place it at $sbt_jar"
+  exit 1
+}
+
+if [[ -n "$noshare" ]]; then
+  for opt in ${noshare_opts}; do
+    addJava "$opt"
+  done
+else
+  case "$(sbt_version)" in
+    "0.7."* | "0.10."* | "0.11."* | "0.12."* )
+      [[ -n "$sbt_dir" ]] || {
+        sbt_dir="$HOME/.sbt/$(sbt_version)"
+        vlog "Using $sbt_dir as sbt dir, -sbt-dir to override."
+      }
+    ;;
+  esac
+
+  if [[ -n "$sbt_dir" ]]; then
+    addJava "-Dsbt.global.base=$sbt_dir"
+  fi
+fi
+
+if [[ -r "$jvm_opts_file" ]]; then
+  vlog "Using jvm options defined in file $jvm_opts_file"
+  while read opt; do extra_jvm_opts+=("$opt"); done < <(readConfigFile "$jvm_opts_file")
+elif [[ -n "$JVM_OPTS" && ! ("$JVM_OPTS" =~ ^@.*) ]]; then
+  vlog "Using jvm options defined in \$JVM_OPTS variable"
+  extra_jvm_opts=( $JVM_OPTS )
+else
+  vlog "Using default jvm options"
+  extra_jvm_opts=( $default_jvm_opts )
+fi
+
+# traceLevel is 0.12+
+[[ -n "$trace_level" ]] && setTraceLevel
+
+
+if [[ -n "$log_level" ]] && [[ "$log_level" != Info ]]; then
+  sbt_commands=("set logLevel in Global := Level.$log_level" "${sbt_commands[@]}")
+fi
+
+
+# run sbt
+execRunner "$java_cmd" \
+  "${extra_jvm_opts[@]}" \
+  "${java_args[@]}" \
+  -jar "$sbt_jar" \
+  "${sbt_commands[@]}" \
+  "${residual_args[@]}"