Check Maven dependency updates on Travis CI

.travis.yml

@@ -12,6 +12,7 @@ install:
 
 script:
   - ./gradlew --no-daemon test javadoc -Dlogback.configurationFile=com/haulmont/cuba/test-silent-logback.xml
+  - ./gradlew --no-daemon dependencyUpdates -PdependencyUpdates -Drevision=release
 
 cache:
   directories:

CONTRIBUTING.md

@@ -111,6 +111,17 @@ Start the following command to run static code analysis:
 > gradlew javadoc findbugsMain
 ```
 
+### Check Maven dependency updates
+
+1. Install the corresponding cuba-gradle-plugin to .m2
+2. Run command:
+
+```
+> gradlew dependencyUpdates -PdependencyUpdates -Drevision=release
+```
+
+It will print available version updates for Maven dependencies.
+
 ## Development process guidelines
 
 ### Code style

build.gradle

@@ -25,7 +25,7 @@ buildscript {
     repositories {
         mavenLocal()
 
-        if (System.getenv('HAULMONT_REPOSITORY_URL')) {
+        if (System.getenv('HAULMONT_REPOSITORY_URL') && !rootProject.hasProperty('dependencyUpdates')) {
             maven {
                 credentials {
                     username System.getenv('HAULMONT_REPOSITORY_USER')
@@ -42,13 +42,46 @@ buildscript {
     dependencies {
         classpath group: 'com.haulmont.gradle', name: 'cuba-plugin', version: cubaVersion
         classpath group: 'gradle.plugin.com.github.spotbugs', name: 'spotbugs-gradle-plugin', version: '1.6.8'
+
+        if (rootProject.hasProperty('dependencyUpdates')) {
+            classpath "com.github.ben-manes:gradle-versions-plugin:0.21.0"
+        }
     }
 }
 
 apply(plugin: 'base')
 apply(plugin: 'maven')
 apply(plugin: 'cuba')
 
+if (rootProject.hasProperty('dependencyUpdates')) {
+    apply plugin: "com.github.ben-manes.versions"
+
+    dependencyUpdates {
+        resolutionStrategy {
+            componentSelection { rules ->
+                rules.all { ComponentSelection selection ->
+                    boolean rejected = ['alpha', 'beta', 'rc', 'RC', 'cr', 'm', 'preview', 'b', 'ea'].any { qualifier ->
+                        selection.candidate.version ==~ /(?i).*[.-]$qualifier[.\d-+]*/
+                    }
+                    if (rejected) {
+                        selection.reject('Release candidate')
+                    }
+                }
+            }
+        }
+
+        checkForGradleUpdate = false
+    }
+
+    /*
+     * Check dependency updates:
+     *
+     * 1. Install the corresponding cuba-gradle-plugin to .m2
+     * 2. Run command:
+     * > gradlew dependencyUpdates -PdependencyUpdates -Drevision=release
+     */
+}
+
 bom.load file('modules/global/src/com/haulmont/cuba/bom.properties')
 
 cuba {

modules/global/src/com/haulmont/cuba/bom.properties

@@ -49,26 +49,26 @@ com.haulmont.thirdparty/swingx-core = 1.6.5-1.cuba.0
 org.apache.poi/poi = 3.17
 
 com.esotericsoftware/kryo-shaded = 4.0.2
-de.javakaffee/kryo-serializers = 0.42
+de.javakaffee/kryo-serializers = 0.45
 
 org.dom4j/dom4j = 2.1.1
 xml-apis/xml-apis = 1.4.01
 javax.activation/activation = 1.1.1
 org.freemarker/freemarker = 2.3.28
-org.jsoup/jsoup = 1.11.3
+org.jsoup/jsoup = 1.12.1
 com.google.code.gson/gson = 2.8.5
 
-org.codehaus.groovy = 2.5.6
+org.codehaus.groovy = 2.5.7
 org.codehaus.groovy/groovy = ${org.codehaus.groovy}
 org.codehaus.groovy/groovy-sql = ${org.codehaus.groovy}
 org.codehaus.groovy/groovy-templates = ${org.codehaus.groovy}
 org.codehaus.groovy/groovy-json = ${org.codehaus.groovy}
 
 ch.qos.logback/logback-classic = 1.2.3
-org.slf4j/slf4j-api = 1.7.25
-org.slf4j/log4j-over-slf4j = 1.7.25
+org.slf4j/slf4j-api = 1.7.26
+org.slf4j/log4j-over-slf4j = 1.7.26
 org.json/json = 20180130
-com.sun.mail/javax.mail = 1.6.0
+com.sun.mail/javax.mail = 1.6.2
 org.perf4j/perf4j = 0.9.16
 com.google.code.findbugs/jsr305 = 3.0.2
 javax.inject/javax.inject = 1
@@ -77,8 +77,8 @@ antlr/antlr = 2.7.7
 org.antlr/antlr-runtime = 3.5.2
 com.google.guava/guava = 27.1-jre
 org.jgroups/jgroups = 3.6.17.Final
-org.aspectj/aspectjrt = 1.9.2
-org.aspectj/aspectjweaver = 1.9.2
+org.aspectj/aspectjrt = 1.9.4
+org.aspectj/aspectjweaver = 1.9.4
 org.jmockit/jmockit = 1.39
 junit/junit = 4.12
 org.spockframework/spock-core = 1.3-groovy-2.5
@@ -100,7 +100,7 @@ com.vaadin/vaadin-push = ${com.vaadin}
 com.vaadin/vaadin-compatibility-server = ${com.vaadin}
 com.vaadin/vaadin-compatibility-client = ${com.vaadin}
 
-org.springframework = 5.1.6.RELEASE
+org.springframework = 5.1.7.RELEASE
 org.springframework/spring-core = ${org.springframework}
 org.springframework/spring-beans = ${org.springframework}
 org.springframework/spring-context = ${org.springframework}