Add a signature file for released POM files

While release syncs with Maven central, it requires ASC files for all
published artifacts. But POM files don't have them right now.
To add them, several significant changes were made:
1. gradle was updated to 5.0 version. As the results, several new fixes
   where applied:
     1. update "lombok" support by adding "annotationProcessor" line as
     the lombok integration is changed
     2. "shadow" plugin was updated to 4.0.3 version as ClassNotFound
     error appears for old version
2. bintray plugin was updated to 1.8.4 version
3. now signing plugin signs publications instead of archives

#145

.rultor.yml

@@ -25,4 +25,4 @@ release:
   script: |-
     cp -v ../gradle.properties ../secring.gpg ./
     ./gradlew updateVersion -PnewVersion=${tag}
-    ./gradlew clean ready signArchives bintrayUpload --info
+    ./gradlew clean ready signMavenPublication bintrayUpload --info

build.gradle

@@ -1,7 +1,5 @@
-import groovy.io.FileType
-
 plugins {
-    id "com.jfrog.bintray" version "1.7" apply false
+    id "com.jfrog.bintray" version "1.8.4" apply false
 }
 
 ext {
@@ -61,7 +59,7 @@ defaultTasks 'clean', 'ready'
 
 //task to write the version parameter given via command line into the "gradle.properties" files.
 // Call with: gradle updateVersion -PnewVersion=1.0.1-SNAPSHOT
-task('updateVersion') << {
+task('updateVersion') {
     if (project.hasProperty('newVersion')) {
         //set version in gradle settings
         project.version = project.newVersion

gradle/bintray.gradle

@@ -19,44 +19,6 @@ artifacts {
     archives sourcesJar
 }
 
-signing {
-    sign configurations.archives
-}
-
-bintray {
-    user = bintrayUser
-    key = bintrayApiKey
-    publications = ['maven']
-    publish = true
-    filesSpec {
-        from("${buildDir}/libs") {
-            include '*.jar.asc'
-        }
-        from("${buildDir}/publications/maven") {
-            include 'pom-default.xml.asc'
-            rename 'pom-default.xml.asc', "${project.name}-${project.version}.pom.asc"
-        }
-        into "${project.group.replaceAll(/\./, '/')}/${project.name}/${project.version}"
-    }
-    pkg {
-        userOrg = BINTRAY_ORG
-        repo = rootProject.name
-        name = project.name
-        licenses = ['Apache-2.0']
-        vcsUrl = GITHUB_URL
-        publicDownloadNumbers = true
-        version {
-            name = project.version
-            vcsTag = project.version
-            mavenCentralSync {
-                sync = true
-                user = sonatypeUsername
-                password = sonatypePassword
-            }
-        }
-    }
-}
-
 // Create the pom configuration:
 def pomConfig = {
     licenses {
@@ -98,4 +60,42 @@ publishing {
             }
         }
     }
-}
+}
+
+signing {
+    sign publishing.publications.maven
+}
+
+bintray {
+    user = bintrayUser
+    key = bintrayApiKey
+    publications = ['maven']
+    publish = true
+    filesSpec {
+        from("${buildDir}/libs") {
+            include '*.jar.asc'
+        }
+        from("${buildDir}/publications/maven") {
+            include 'pom-default.xml.asc'
+            rename 'pom-default.xml.asc', "${project.name}-${project.version}.pom.asc"
+        }
+        into "${project.group.replaceAll(/\./, '/')}/${project.name}/${project.version}"
+    }
+    pkg {
+        userOrg = BINTRAY_ORG
+        repo = rootProject.name
+        name = project.name
+        licenses = ['Apache-2.0']
+        vcsUrl = GITHUB_URL
+        publicDownloadNumbers = true
+        version {
+            name = project.version
+            vcsTag = project.version
+            mavenCentralSync {
+                sync = true
+                user = sonatypeUsername
+                password = sonatypePassword
+            }
+        }
+    }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Mon Mar 13 16:56:27 EET 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.0-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.1-all.zip

gradlew

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
 
 ##############################################################################
 ##
@@ -33,11 +33,11 @@ DEFAULT_JVM_OPTS=""
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
 
-warn ( ) {
+warn () {
     echo "$*"
 }
 
-die ( ) {
+die () {
     echo
     echo "$*"
     echo
@@ -154,16 +154,19 @@ if $cygwin ; then
     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=("$@")
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
 }
-eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
-JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
 
 # 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" == "$PWD" ]]; then
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
   cd "$(dirname "$0")"
 fi
 
-exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
+exec "$JAVACMD" "$@"

sunshine-core/build.gradle

@@ -1,5 +1,6 @@
 dependencies {
     compileOnly 'org.projectlombok:lombok:1.16.14'
+    annotationProcessor 'org.projectlombok:lombok:1.16.14'
     testCompile 'org.hamcrest:hamcrest-all:1.3'
     testCompile 'junit:junit:4.11'
     testCompile 'com.github.stefanbirkner:system-rules:1.18.0'

sunshine-junit4-integration-tests/build.gradle

@@ -3,7 +3,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.github.jengelman.gradle.plugins:shadow:2.0.1'
+        classpath 'com.github.jengelman.gradle.plugins:shadow:4.0.3'
     }
 }
 

sunshine-junit4/build.gradle

@@ -1,5 +1,6 @@
 dependencies {
     compileOnly 'org.projectlombok:lombok:1.16.14'
+    annotationProcessor 'org.projectlombok:lombok:1.16.14'
     compile 'junit:junit:4.11'
     testCompile 'org.hamcrest:hamcrest-all:1.3'
 }

sunshine-testng/build.gradle

@@ -1,5 +1,6 @@
 dependencies {
     compileOnly 'org.projectlombok:lombok:1.16.14'
+    annotationProcessor 'org.projectlombok:lombok:1.16.14'
     compile 'org.testng:testng:6.11'
     testCompile 'org.hamcrest:hamcrest-all:1.3'
     testCompile 'junit:junit:4.11'