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[1.12.2] NoClassDefFound

Posted June 17, 20187 yr

I shaded apache-dbcp2 into my .jar, but when server reaches any usage of this library's classes - it throws NoClassDefFoundError:

[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: Caused by: java.lang.NoClassDefFoundError: org/apache/commons/dbcp2/BasicDataSource
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	at ru.alastar.minedonate.rtnl.ModDataBase.getDataBaseConnection(ModDataBase.java:38)
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	at ru.alastar.minedonate.rtnl.ModDataBase.initDataBase(ModDataBase.java:132)
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	... 43 more
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: Caused by: java.lang.ClassNotFoundException: org.apache.commons.dbcp2.BasicDataSource
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	at java.net.URLClassLoader.findClass(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	at java.lang.ClassLoader.loadClass(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	at java.lang.ClassLoader.loadClass(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:106)
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	at java.lang.ClassLoader.loadClass(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	at java.lang.ClassLoader.loadClass(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: 	... 45 more
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: java.lang.NullPointerException
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at ru.alastar.minedonate.rtnl.ModDataBase.getDataBaseConnection(ModDataBase.java:26)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at ru.alastar.minedonate.rtnl.ModDataBase.getNewStatement(ModDataBase.java:65)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at ru.alastar.minedonate.MineDonate.loadServerMerch(MineDonate.java:95)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at ru.alastar.minedonate.proxies.ServerProxy.preInit(ServerProxy.java:65)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at ru.alastar.minedonate.MineDonate.preInit(MineDonate.java:654)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at java.lang.reflect.Method.invoke(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:627)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at java.lang.reflect.Method.invoke(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.EventBus.post(EventBus.java:217)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:218)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:196)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at java.lang.reflect.Method.invoke(Unknown Source)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at com.google.common.eventbus.EventBus.post(EventBus.java:217)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at net.minecraftforge.fml.common.LoadController.redirect$onPost$zza000(LoadController.java:560)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:135)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:627)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:98)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:332)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:125)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486)
[20:02:37] [Server thread/INFO] [STDERR]: [ru.alastar.minedonate.MineDonate:loadServerMerch:118]: 	at java.lang.Thread.run(Unknown Source)

On the 1.7.10 everything worked fine

Edited June 17, 20187 yr by Alastar

Quote

June 17, 20187 yr

Author

Posting my build.gradle that did the trick(Used ShadowJar due to inability to did it with Forge Gradle) seems like the only way to do it now :

buildscript {
    
    repositories {
        jcenter()
        mavenCentral()
        maven {
            name = "forge"
            url = "http://files.minecraftforge.net/maven"
        }
        maven {
            name = "sonatype"
            url = "https://oss.sonatype.org/content/repositories/snapshots/"
        }
    }
    
    dependencies {
        classpath 'net.minecraftforge.gradle:ForgeGradle:2.3-SNAPSHOT'
        classpath 'com.github.jengelman.gradle.plugins:shadow:1.2.3'
    }
}
apply plugin: 'net.minecraftforge.gradle.forge'
apply plugin: 'java' // or 'groovy'. Must be explicitly applied
apply plugin: 'com.github.johnrengelman.shadow'

version = "0.7.1.26"
group = "minedonate"
archivesBaseName = "minedonate"

[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'

sourceCompatibility = targetCompatibility = '1.8'
compileJava {
    sourceCompatibility = targetCompatibility = '1.8'
}

minecraft {
    version = "1.12.2-14.23.0.2491"
    runDir = "run"
    mappings = "snapshot_20170612"
    makeObfSourceJar = false
}

configurations {
    shadow
    compile.extendsFrom shadow
}

dependencies {
    shadow   'org.apache.commons:commons-dbcp2:2.1.1'
    shadow   'org.apache.commons:commons-pool2:2.4.2'
    shadow   'mysql:mysql-connector-java:8.0.11'
}
shadowJar {
    archiveName = tasks.jar.archiveName
    configurations = [project.configurations.shadow]
    relocate 'org.apache.commons', 'ru.alastar.org.shadowedlibs.org.apache.commons'
}

jar {
    configurations.shadow.each { dep ->
        from(project.zipTree(dep)){
            exclude 'META-INF', 'META-INF/**'
        }
    }
}
jar.dependsOn shadowJar
jar.enabled = false

processResources {
    inputs.property "version", project.version
    inputs.property "mcversion", project.minecraft.version

    from(sourceSets.main.resources.srcDirs) {
        include 'mcmod.info'
        expand 'version': project.version, 'mcversion': project.minecraft.version
    }

    from(sourceSets.main.resources.srcDirs) {
        exclude 'mcmod.info'
    }
}

Edited June 17, 20187 yr by Alastar

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[1.12.2] NoClassDefFound

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