feat: Update spring-boot and watson-java-sdk

* Update spring boot to: 2.2.5.RELEASE
* Update java-sdk to: 8.3.1
* Update gradle to 5.3.1
* Update gradle dependencies and gradle build code

Author: germanattanasio

build.gradle

@@ -14,16 +14,16 @@
 
 buildscript {
     repositories {
-        maven { url 'http://repo.spring.io/plugins-release' }
+        maven { url 'https://repo.spring.io/plugins-release' }
     }
     dependencies {
         classpath 'io.spring.gradle:propdeps-plugin:0.0.9.RELEASE'
     }
 }
 
 plugins {
-    id 'com.github.johnrengelman.shadow' version '1.2.4'
-    id 'io.codearte.nexus-staging' version '0.11.0'
+    id 'com.github.johnrengelman.shadow' version '5.2.0'
+    id 'io.codearte.nexus-staging' version '0.21.2'
 }
 
 apply plugin: 'java'
@@ -82,7 +82,7 @@ targetCompatibility = 1.8
 
 repositories {
     mavenCentral()
-    maven { url 'http://repo.spring.io/libs-release' }
+    maven { url 'https://repo.spring.io/libs-release' }
     maven { url 'https://dl.bintray.com/ibm-cloud-sdks/ibm-cloud-sdk-repo' }
 
 }
@@ -108,7 +108,7 @@ dependencies {
 
     // testing
     testCompile group: 'junit', name: 'junit', version: '4.12'
-    testCompile 'com.github.stefanbirkner:system-rules:1.16.0'
+    testCompile 'com.github.stefanbirkner:system-rules:1.19.0'
     testCompile group: 'org.springframework.boot', name: 'spring-boot-starter-test', version: springBootVersion
 }
 
@@ -124,13 +124,13 @@ test {
 apply plugin: 'jacoco'
 
 task codeCoverageReport(type: JacocoReport, dependsOn: test) {
-    executionData fileTree(project.rootDir.absolutePath).include("**/build/jacoco/*.exec")
-    sourceDirectories = files(sourceSets.main.allSource.srcDirs)
-    classDirectories = files(sourceSets.main.output)
+    getExecutionData().setFrom(fileTree(project.rootDir.absolutePath).include("**/build/jacoco/*.exec"))
+    getSourceDirectories().setFrom(files(sourceSets.main.allSource.srcDirs))
+    getClassDirectories().setFrom(files(sourceSets.main.output))
 
     reports {
         xml.enabled true
-        xml.destination "${buildDir}/reports/jacoco/report.xml"
+        xml.destination file("${buildDir}/reports/jacoco/report.xml")
         csv.enabled false
         html.destination file("${buildDir}/reports/jacoco-html")
     }

gradle.properties

@@ -1,5 +1,5 @@
 version=1.1.0
 group = com.ibm.watson.developer_cloud
-watsonVersion = 8.0.0
+watsonVersion = 8.3.1
 springVersion = 4.3.12.RELEASE
-springBootVersion = 1.5.9.RELEASE
+springBootVersion = 2.2.5.RELEASE

gradle/wrapper/gradle-wrapper.jar

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.8-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.3.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,21 @@
 #!/usr/bin/env sh
 
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
 ##############################################################################
 ##
 ##  Gradle start up script for UN*X
@@ -28,7 +44,7 @@ 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=""
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"

gradlew

@@ -1,3 +1,19 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      http://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
 @if "%DEBUG%" == "" @echo off
 @rem ##########################################################################
 @rem
@@ -14,7 +30,7 @@ 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=
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome