With the new update of JDA 4.2.0 the new built JAR file on the VPS returns NoClassDefFoundError - gradle

Question

With the new update of JDA 4.2.0 trying to run the jar file on the VPS fails.
I have tried various options, such as
creating a fat jar
searching for other similar issues
source 1
source 2
Yet none of these options seemed to work, since the VPS console output stays unchanged:
Error: Could not find or load main class ...
Caused by: java.lang.NoClassDefFoundError: net/dv8tion/jda/api/hooks/ListenerAdapter
So my current question is, what should my gradle.build look like, or is this a problem of the VPS not refreshing correctly? Or perhaps another problem I'm not aware of.
As for what my gradle.build looks like:
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.github.jengelman.gradle.plugins:shadow:2.0.1'
}
}
apply plugin: 'java'
apply plugin: 'com.github.johnrengelman.shadow'
group '...'
version '2.0-SNAPSHOT'
repositories {
mavenCentral()
jcenter(
)
}
dependencies {
testCompile group: 'junit', name: 'junit', version: '4.+'
compile 'net.dv8tion:JDA:4.2.0_168'
compile group: 'commons-collections', name: 'commons-collections', version: '3.2'
compile group: 'mysql', name: 'mysql-connector-java', version: '8.0.20'
compile group: 'javax.persistence', name: 'persistence-api', version: '1.0'
compile 'com.vdurmont:emoji-java:5.1.1'
}
jar {
manifest {
attributes(
'Main-Class': '...'
)
}
}
NOTE: In the previous snapshot of 1.0-SNAPSHOT this following gradle.build worked to start up the project:
plugins {
id 'java'
id 'application'
}
group '...'
version '1.0-SNAPSHOT'
repositories {
mavenCentral()
jcenter()
}
dependencies {
testCompile group: 'junit', name: 'junit', version: '4.+'
compile 'net.dv8tion:JDA:3.5.0_329'
compile group: 'commons-collections', name: 'commons-collections', version: '3.2'
compile group: 'mysql', name: 'mysql-connector-java', version: '8.0.20'
compile group: 'javax.persistence', name: 'persistence-api', version: '1.0'
compile 'com.vdurmont:emoji-java:5.1.1'
}

Answer 1

You can use this build.gradle to build a working shadow jar:
plugins {
id 'application' // this allows you to set a mainClassName
id 'com.github.johnrengelman.shadow' version '6.0.0' // this adds the shadowJar task
}
group '...'
version '2.0-SNAPSHOT'
mainClassName = 'your main class goes here' // this sets the main class property in your manifest automatically
repositories {
jcenter() // jcenter is a superset of mavenCentral
}
dependencies {
testCompile group: 'junit', name: 'junit', version: '4.+'
compile 'net.dv8tion:JDA:4.2.0_191'
compile group: 'commons-collections', name: 'commons-collections', version: '3.2'
compile group: 'mysql', name: 'mysql-connector-java', version: '8.0.20'
compile group: 'javax.persistence', name: 'persistence-api', version: '1.0'
compile 'com.vdurmont:emoji-java:5.1.1'
}
Run the shadowJar gradle task to compile your jar file. This will then be placed inside build/libs and has the format [name]-all.jar. Do not forget to replace the mainClassName with the fully qualified name of your main class.