bug 506579: Added required Gradle build files
diff --git a/.gitignore b/.gitignore
index 24ebfb0..2117f92 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,5 @@
 spring-build/lib/findbugs
 .DS_Store
 user-ivy.properties
+.gradle
+
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..0c926b5
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,195 @@
+buildscript {
+    repositories {
+        mavenLocal()
+        maven {
+            url "https://plugins.gradle.org/m2/"
+        }
+        dependencies {
+            classpath "gradle.plugin.org.eclipse.virgo.bundlor:bundlor-plugin:0.2"
+        }
+    }
+}
+
+def timestamp = new Date().format('yyyyMMddHHmmss', TimeZone.getTimeZone('GMT'))
+
+defaultTasks 'clean', 'build', 'javadoc', 'sourcesJar', 'javadocJar'
+
+ext.javaProjects = [
+    project(':org.eclipse.virgo.snaps'),
+    project(':org.eclipse.virgo.snaps.api'),
+    project(':org.eclipse.virgo.snaps.cor:org.eclipse.virgo.snaps.core')
+]
+
+allprojects {
+    apply plugin: 'base'
+    if (System.properties['ci.build'] == 'true') {
+        def buildQualifier = System.properties['ci.build.qualifier']
+        if(buildQualifier) { 
+            version = version + '.' + buildQualifier
+        } else {
+            version = version + '.' + timestamp
+        }
+    } else {
+        version = version + '.SNAPSHOT'
+    }
+}
+
+configure(javaProjects) {
+    apply plugin: 'java'
+    apply plugin: 'jacoco'
+    apply plugin: 'findbugs'
+
+    sourceCompatibility = '1.8'
+    targetCompatibility = '1.8'
+
+    compileJava {
+        options.encoding = 'UTF-8'
+        options.fork = true
+        doFirst {
+            options.forkOptions.with {
+                executable = 'java'
+                jvmArgs = [
+                    '-cp',
+                    configurations.ecj.asPath,
+                    'org.eclipse.jdt.internal.compiler.batch.Main']
+            }
+        }
+    }
+    compileTestJava {
+        options.encoding = 'UTF-8'
+        options.fork = true
+        doFirst {
+            options.forkOptions.with {
+                executable = 'java'
+                jvmArgs = [
+                    '-cp',
+                    configurations.ecj.asPath,
+                    'org.eclipse.jdt.internal.compiler.batch.Main']
+            }
+        }
+    }
+    configurations {
+    	ecj {}
+		testBundles {
+			transitive = false
+		}
+	}
+    jar {
+    	// add SUA to archive
+        from "$rootDir/build-bundlor/resources/about/notice.html"
+		duplicatesStrategy 'exclude'
+    }
+    jar.doLast {
+    	// signing the archives
+        if(System.properties['ci.build.signjars'] == 'true') {
+            println '|--> Signing Jar File: ' + archivePath
+            exec {
+                workingDir destinationDir
+                commandLine 'curl',
+                            '-o',
+                            archiveName,
+                            '-F',
+                            "file=@${archiveName}",
+                            '--show-error',
+                            'http://build.eclipse.org:31338/sign'
+            }
+        }
+    }
+    jacoco {
+        toolVersion = "0.7.4.201502262128"
+    }
+    findbugs {
+        sourceSets = [sourceSets.main]
+        ignoreFailures = true
+        effort = "max"
+        reportLevel = "high"
+    }
+    javadoc {
+        failOnError = false
+    }
+    task sourcesJar(type: Jar, dependsOn: classes) {
+    	description 'Assembles a jar archive containing the sources.'
+    	group = 'build'
+	    classifier = 'sources'
+    	from sourceSets.main.allSource
+	}
+	task javadocJar(type: Jar, dependsOn: javadoc) {
+	    description 'Assembles a jar archive containing the javadocs.'
+    	group = 'build'
+	    classifier = 'javadoc'
+	    from javadoc.destinationDir
+	}    	
+}
+
+configure(javaProjects) {
+    apply plugin: 'org.eclipse.virgo.bundlor'
+	
+	task('addProjectVersionToGradlePropertiesTask', type: Copy) {
+		ext.outputDir = new File(buildDir, 'bundlor-properties')
+		inputs.file project.rootProject.file('gradle.properties')
+		outputs.dir ext.outputDir
+		from project.rootProject.file('gradle.properties')
+		into ext.outputDir
+		doLast {
+			def gradleProperties = new Properties()
+			gradleProperties.load(new FileReader("${buildDir}/bundlor-properties/gradle.properties"))
+			gradleProperties.setProperty('bundleName', "${archivesBaseName}")
+			gradleProperties.setProperty('timestamp', "${timestamp}")
+			gradleProperties.setProperty('version', "${version}")
+			def writer = new FileWriter("${buildDir}/bundlor-properties/gradle.properties")
+   			try {
+      			gradleProperties.store(writer, 'modified during build process')
+      			writer.flush()
+   			} finally {
+      			writer.close()
+   			}
+		}
+	}
+	task('mergeClassesAndResources', type: Copy, dependsOn: 'compileJava') {
+		ext.bundlorInputPath = new File(buildDir, 'bundlor-inputPath')
+		inputs.file sourceSets.main.output.classesDir
+		inputs.file sourceSets.main.resources
+		outputs.dir ext.bundlorInputPath
+		from sourceSets.main.output.classesDir
+		from sourceSets.main.resources
+		into ext.bundlorInputPath
+	}
+	project.tasks.'bundlor'.dependsOn('addProjectVersionToGradlePropertiesTask', 'mergeClassesAndResources')
+    bundlor {
+    	ext.bundlorInputPath = new File(buildDir, 'bundlor-inputPath')
+		project.tasks['bundlor'].inputs.file ext.bundlorInputPath
+        manifestTemplatePath = "template.mf"
+        propertiesPath = new File("${project.buildDir}/bundlor-properties/gradle.properties")
+		inputPath = ext.bundlorInputPath
+        failOnWarnings = true
+    }
+}
+
+configure(javaProjects) {
+    apply plugin: 'eclipse'
+
+    eclipse {
+        jdt {
+            sourceCompatibility = 1.8
+            targetCompatibility = 1.8            
+        }
+        project {
+            file.beforeMerged {
+                project.natures.clear()
+            }
+            natures = ['org.eclipse.buildship.core.gradleprojectnature']
+        }
+    }
+    cleanEclipse.doLast {
+        delete '.settings'
+        delete 'bin'
+        delete '.springBeans'
+    }
+}
+
+task wrapper(type: Wrapper) {
+    description 'Creates a local Gradle Wrapper'
+    group = 'Build Setup'
+    gradleVersion = '3.1'
+}
+
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..b1762cf
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,13 @@
+# Bundlor Metadata
+version = 3.7.0
+description = 'Virgo Snaps allows you to construct a web application from multiple OSGi bundles, each of which serves up content for a distinct sub-portion of your application's URL space.'
+
+# Eclipse Java Compiler Version
+ecjVersion = 4.5.1
+
+# Versions of runtime dependencies
+
+
+# Versions of test dependencies
+
+
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..6ffa237
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..406a815
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Oct 26 20:20:43 CEST 2016
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.1-bin.zip
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..9aa616c
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,169 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [[ "$(uname)" == "Darwin" ]] && [[ "$HOME" == "$PWD" ]]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..e95643d
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off

+@rem ##########################################################################

+@rem

+@rem  Gradle startup script for Windows

+@rem

+@rem ##########################################################################

+

+@rem Set local scope for the variables with windows NT shell

+if "%OS%"=="Windows_NT" setlocal

+

+set DIRNAME=%~dp0

+if "%DIRNAME%" == "" set DIRNAME=.

+set APP_BASE_NAME=%~n0

+set APP_HOME=%DIRNAME%

+

+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.

+set DEFAULT_JVM_OPTS=

+

+@rem Find java.exe

+if defined JAVA_HOME goto findJavaFromJavaHome

+

+set JAVA_EXE=java.exe

+%JAVA_EXE% -version >NUL 2>&1

+if "%ERRORLEVEL%" == "0" goto init

+

+echo.

+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.

+echo.

+echo Please set the JAVA_HOME variable in your environment to match the

+echo location of your Java installation.

+

+goto fail

+

+:findJavaFromJavaHome

+set JAVA_HOME=%JAVA_HOME:"=%

+set JAVA_EXE=%JAVA_HOME%/bin/java.exe

+

+if exist "%JAVA_EXE%" goto init

+

+echo.

+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%

+echo.

+echo Please set the JAVA_HOME variable in your environment to match the

+echo location of your Java installation.

+

+goto fail

+

+:init

+@rem Get command-line arguments, handling Windows variants

+

+if not "%OS%" == "Windows_NT" goto win9xME_args

+

+:win9xME_args

+@rem Slurp the command line arguments.

+set CMD_LINE_ARGS=

+set _SKIP=2

+

+:win9xME_args_slurp

+if "x%~1" == "x" goto execute

+

+set CMD_LINE_ARGS=%*

+

+:execute

+@rem Setup the command line

+

+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar

+

+@rem Execute Gradle

+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%

+

+:end

+@rem End local scope for the variables with windows NT shell

+if "%ERRORLEVEL%"=="0" goto mainEnd

+

+:fail

+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of

+rem the _cmd.exe /c_ return code!

+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1

+exit /b 1

+

+:mainEnd

+if "%OS%"=="Windows_NT" endlocal

+

+:omega

diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..ec44f68
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1,5 @@
+rootProject.name = 'snaps-root'
+include ':org.eclipse.virgo.snaps'
+include ':org.eclipse.virgo.snaps.api'
+include ':org.eclipse.virgo.snaps.core'
+