Initial OpenJ9 contribution

This is the initial contribution of the OpenJ9 JVM and tests
based on IBM's J9 JVM.

This project builds in conjungtion with the Eclipse OMR project
(https://github.com/eclipse/openj9-omr) and combines with the
OpenJDK extensions git mirror
(https://github.com/ibmruntimes/openj9-openjdk-jdk9) -- which
includes the OpenJ9-specific patches -- to provide a complete JDK.

CQs:
14111 OpenJ9 initial contribution
14064 CuTest 1.4
14043 libffi 3.2.1
14045 Eclipse OMR
14047 FreeMarker 2.3.8
14042 MurmurHash3
14044 Unicode 8.0.0
14040 zlib 1.2.3
14046 dlmalloc 2.8.3
14084 testng 6.10.0
14081 java assist 3.12.1
14085 apache-ant-contrib 1.0b1
14087 log4j 2.3
14069 Apache Ant Version: 1.10.1 (PB CQ12750)
14066 junit Version: 4.10 (PB CQ5958)
14068 Apache Commons Exec Version: 1.1 (PB Orbit CQ6786)
14065 ASM 5.0.1 (PB Orbit CQ 8129) (PB CQ8123)
14067 Apache commons-cli Version: 1.2 (PB Orbit CQ 4580) (PB CQ10756)

Signed-off-by: Dan Heidinga <[email protected]>

.gitignore

@@ -0,0 +1,14 @@
+*.jar
+*.zip
+*.dll
+*.class
+omr
+
+# 8096* and com.ibm.jvmti.tests are currently in different repos and copied into the build $workspace
+com.ibm.jvmti.tests
+8096_Base
+8096_Bootstrap
+8096_Utils
+
+# Root level .project should be ignored as Eclipse automatically creates this file when new repositories are added as Projects for C/C++ indexing
+/.project

CONTRIBUTING.md

@@ -0,0 +1,213 @@
+<!--
+Copyright (c) 2017, 2017 IBM Corp. and others
+
+This program and the accompanying materials are made available under
+the terms of the Eclipse Public License 2.0 which accompanies this
+distribution and is available at https://www.eclipse.org/legal/epl-2.0/
+or the Apache License, Version 2.0 which accompanies this distribution and
+is available at https://www.apache.org/licenses/LICENSE-2.0.
+
+This Source Code may also be made available under the following
+Secondary Licenses when the conditions for such availability set
+forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
+General Public License, version 2 with the GNU Classpath 
+Exception [1] and GNU General Public License, version 2 with the
+OpenJDK Assembly Exception [2].
+
+[1] https://www.gnu.org/software/classpath/license.html
+[2] http://openjdk.java.net/legal/assembly-exception.html
+
+SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
+-->
+
+# Contributing to Eclipse OpenJ9
+
+Thank you for your interest in Eclipse OpenJ9!
+
+We welcome and encourage all kinds of contributions to the project, not only
+code. This includes bug reports, user experience feedback, assistance in
+reproducing issues and more. Contributions to the website
+(https://github.com/eclipse/openj9-website), to the system verification tests
+(https://github.com/eclipse/openj9-systemtest), or Eclipse OMR
+(https://github.com/eclipse/omr) which is an integral part of OpenJ9 are all
+also welcome. 
+
+
+## Submitting a contribution to OpenJ9
+
+You can propose contributions by sending pull requests (PRs) through GitHub.
+Following these guidelines will help us merge your pull requests smoothly:
+
+1. Your pull request is an opportunity to explain both what changes you'd like
+   pulled in, but also _why_ you'd like them added. Providing clarity on why
+   you want changes makes it easier to accept, and provides valuable context to
+   review.
+
+2. Follow the commit guidelines found below.
+
+3. We encourage you to open a pull request early, and mark it as "Work In
+   Progress", by prefixing the PR title with "WIP". This allows feedback to
+   start early, and helps create a better end product. Committers will wait
+   until after you've removed the WIP prefix to merge your changes. 
+
+4. Please carefully read and adhere to the legal considerations and
+   copyright/license requirements outlined below.
+
+## Commit Guidelines
+
+The first line describes the change made. It is written in the imperative mood,
+and should say what happens when the patch is applied. Keep it short and
+simple. The first line should be less than 70 characters, where reasonable,
+and should be written in sentence case preferably not ending in a period.
+Leave a blank line between the first line and the message body.
+
+The body should be wrapped at 72 characters, where reasonable.
+
+Include as much information in your commit as possible. You may want to include
+designs and rationale, examples and code, or issues and next steps. Prefer
+copying resources into the body of the commit over providing external links.
+Structure large commit messages with headers, references etc. Remember, however,
+that the commit message is always going to be rendered in plain text.
+
+Use the commit footer to place commit metadata. The footer is the last block of
+contiguous text in the message. It is separated from the body by one or more
+blank lines, and as such cannot contain any blank lines. Lines in the footer are
+of the form:
+
+```
+Key: Value
+```
+
+When a commit has related issues or commits, explain the relation in the message
+body. You should also leave an `Issue` tag in the footer. For example:
+
+```
+Correct race in frobnicator 
+
+This patch eliminates the race condition in issue #1234.
+
+Issue: #1234
+```
+
+Sign off on your commit in the footer. By doing this, you assert original
+authorship of the commit and that you are permitted to contribute it. This can
+be automatically added to your commit by passing `-s` to `git commit`, or by
+manually adding the following line to the footer of the commit.
+
+```
+Signed-off-by: Full Name <email>
+```
+
+Remember, if a blank line is found anywhere after the `Signed-off-by` line, the
+`Signed-off-by:` will be considered outside of the footer, and will fail the
+automated Signed-off-by validation. The email used to sign off the commit must
+be the same, including case-sensitivity, as the one used to sign the Eclipse ECA,
+or your commit will fail IP validation.
+
+It is important that you read and understand the legal considerations found
+below when signing off or contributing any commit.
+
+### Example commits
+
+Here is an example of a *good* commit:
+
+```
+Update and expand the commit guidelines
+
+Elaborate on the style guidelines for commit messages. These new
+style guidelines reflect the conversation found in #124.
+
+The guidelines are changed to:
+- Provide guidance on how to write a good first line.
+- Elaborate on formatting requirements.
+- Relax the advice on using issues for nontrivial commits.
+- Move issue references from the first line to the message footer.
+- Encourage contributors to put more information into the commit
+  message.
+
+Issue: #124
+Signed-off-by: Robert Young <[email protected]>
+```
+
+The first line is meaningful and imperative. The body contains enough
+information that the reader understands the why and how of the commit, and its
+relation to any issues. The issue is properly tagged and the commit is signed
+off.
+
+The following is a *bad* commit:
+
+```
+FIX #124: Changing a couple random things in CONTRIBUTING.md.
+Also, there are some bug fixes in the thread library.
+```
+
+The commit rolls unrelated changes together in a very bad way. There is not
+enough information for the commit message to be useful. The first line is not
+meaningful or imperative. The message is not formatted correctly, the issue is
+improperly referenced, and the commit is not signed off by the author.
+
+### Other resources for writing good commits
+
+- http://chris.beams.io/posts/git-commit/
+
+## Legal considerations
+
+Please read the [Eclipse Foundation policy on accepting contributions via Git](http://wiki.eclipse.org/Development_Resources/Contributing_via_Git).
+
+Your contribution cannot be accepted unless you have a signed [ECA - Eclipse Foundation Contributor Agreement](http://www.eclipse.org/legal/ECA.php) in place. If you have an active signed Eclipse CLA
+([the CLA was updated by the Eclipse Foundation to become the ECA in August 2016](https://mmilinkov.wordpress.com/2016/08/15/contributor-agreement-update/)),
+then that signed CLA is sufficient. You will have to sign the ECA once your CLA expires.
+
+Here is the checklist for contributions to be _acceptable_:
+
+1. [Create an account at Eclipse](https://dev.eclipse.org/site_login/createaccount.php).
+2. Add your GitHub user name in your account settings.
+3. [Log into the project's portal](https://projects.eclipse.org/) and sign the ["Eclipse ECA"](https://projects.eclipse.org/user/sign/cla).
+4. Ensure that you [_sign-off_](https://wiki.eclipse.org/Development_Resources/Contributing_via_Git#Signing_off_on_a_commit) your Git commits.
+5. Ensure that you use the _same_ email address as your Eclipse account in commits.
+6. Include the appropriate copyright notice and license at the top of each file.
+
+Your signing of the ECA will be verified by a webservice called 'ip-validation'
+that checks the email address that signed-off on your commits has signed the
+ECA. **Note**: This service is case-sensitive, so ensure the email that signed
+the ECA and that signed-off on your commits is the same, down to the case. 
+
+### Copyright Notice and Licensing Requirements
+
+**It is the responsibility of each contributor to obtain legal advice, and
+to ensure that their contributions fulfill the legal requirements of their
+organization. This document is not legal advice.**
+
+Eclipse OpenJ9 is dual-licensed under the Eclipse Public License v2.0 and the
+Apache License v2.0. Any previously unlicensed contribution should be released
+under the same license.
+
+* If you wish to contribute code under a different license, you must consult
+  with a project lead before contributing.
+* For any scenario not covered by this document, please discuss the copyright
+  notice and licensing requirements with a project before contributing.
+
+The template for the copyright notice and dual-license is as follows:
+```
+/*******************************************************************************
+ * Copyright (c) %s, %s IBM Corp. and others
+ * 
+ * This program and the accompanying materials are made available under
+ * the terms of the Eclipse Public License 2.0 which accompanies this
+ * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
+ * or the Apache License, Version 2.0 which accompanies this distribution and
+ * is available at https://www.apache.org/licenses/LICENSE-2.0.
+ * 
+ * This Source Code may also be made available under the following
+ * Secondary Licenses when the conditions for such availability set
+ * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
+ * General Public License, version 2 with the GNU Classpath 
+ * Exception [1] and GNU General Public License, version 2 with the
+ * OpenJDK Assembly Exception [2].
+ * 
+ * [1] https://www.gnu.org/software/classpath/license.html
+ * [2] http://openjdk.java.net/legal/assembly-exception.html
+ * 
+ * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
+ *******************************************************************************/
+```