Jacksonでjava.lang.NoClassDefFoundErrorが出る

前提・実現したいこと

Jacksonをプログラム内で使用したいです。

Gradleでjacksonを導入したが、jarを実行するとNoClassDefFoundErrorが出てしまいます。

これは、MinecraftのMODですが、今回のエラーは普通のGradleプロジェクトと変わらないと思ったので、このように質問させていただきます。

発生している問題・エラーメッセージ

net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from CrTea Client (crtea)
Caused by: java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ObjectMapper
	at cf.crocha.crtea.api.ApiManager.<init>(ApiManager.java:36)
	at cf.crocha.crtea.CrTea.startClient(CrTea.java:63)
	at cf.crocha.crtea.CrTea.init(CrTea.java:47)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:637)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
	at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
	at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
	at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
	at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
	at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
	at com.google.common.eventbus.EventBus.post(EventBus.java:217)
	at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219)
	at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
	at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
	at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
	at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
	at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
	at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
	at com.google.common.eventbus.EventBus.post(EventBus.java:217)
	at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136)
	at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:749)
	at net.minecraftforge.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:336)
	at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:535)
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:378)
	at net.minecraft.client.main.Main.main(SourceFile:123)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.databind.ObjectMapper
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:101)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 44 more

該当のソースコード

build.gradle
1buildscript {
2    repositories {
3        jcenter()
4        maven {
5            name = "forge"
6            url = "http://files.minecraftforge.net/maven"
7        }
8        maven {
9            name = 'SpongePowered'
10            url = 'https://repo.spongepowered.org/repository/maven-public/'
11        }
12        maven {
13            name = 'lukflug'
14            url = 'https://lukflug.github.io/maven/'
15        }
16    }
17    dependencies {
18        classpath "net.minecraftforge.gradle:ForgeGradle:3+"
19        classpath 'org.spongepowered:mixingradle:0.7-SNAPSHOT'
20        classpath "com.github.jengelman.gradle.plugins:shadow:4.0.4"
21    }
22}
23apply plugin: "net.minecraftforge.gradle"
24apply plugin: 'org.spongepowered.mixin'
25apply plugin: "com.github.johnrengelman.shadow"
26
27version project.modVersion
28group project.modGroup
29
30minecraft {
31    mappings channel: 'stable', version: '39-1.12'
32}
33
34repositories {
35    maven {
36        name = 'spongepowered-repo'
37        url = 'https://repo.spongepowered.org/repository/maven-public/'
38    }
39    maven {
40        name = 'swt-repo'
41        url = "https://maven-eclipse.github.io/maven"
42    }
43    maven {
44        name = "jitpack.io"
45        url = "https://jitpack.io"
46    }
47    maven {
48        name = 'lukflug'
49        url = 'https://lukflug.github.io/maven'
50    }
51    mavenCentral()
52    jcenter()
53}
54
55dependencies {
56    // minecraftforge dependency
57    minecraft "net.minecraftforge:forge:1.12.2-14.23.5.2854"
58
59    shadow "com.mojang:brigadier:1.0.17"
60    shadow "com.github.Vatuu:discord-rpc:1.6.2"
61
62    // mixins
63    implementation "org.spongepowered:mixin:0.7.11-SNAPSHOT"
64    shadow("org.spongepowered:mixin:0.7.11-SNAPSHOT") {
65        exclude module: "launchwrapper"
66        exclude module: "guava"
67        exclude module: "gson"
68        exclude module: "commons-io"
69    }
70    annotationProcessor("org.spongepowered:mixin:0.8.2:processor") {
71        exclude module: "gson"
72    }
73
74    implementation "com.github.ZeroMemes:Alpine:1.5"
75    shadow "com.github.ZeroMemes:Alpine:1.5"
76
77    implementation('com.lukflug:panelstudio:0.1.8')
78    implementation('com.lukflug:panelstudio-mc12:0.1.8')
79    shadow('com.lukflug:panelstudio:0.1.8')
80    shadow('com.lukflug:panelstudio-mc12:0.1.8')
81
82    implementation 'com.fasterxml.jackson.core:jackson-core:2.9.4'
83    shadow('com.fasterxml.jackson.core:jackson-core:2.9.4')
84    implementation 'com.fasterxml.jackson.core:jackson-annotations:2.9.4'
85    shadow('com.fasterxml.jackson.core:jackson-annotations:2.9.4')
86    implementation 'com.fasterxml.jackson.core:jackson-databind:2.9.4'
87    shadow('com.fasterxml.jackson.core:jackson-databind:2.9.4')
88}
89
90processResources {
91    // this will ensure that this task is redone when the versions change.
92    inputs.property "version", project.version
93
94    // replace stuff in mcmod.info, nothing else
95    from(sourceSets.main.resources.srcDirs) {
96        include "mcmod.info"
97
98        // replace version and mcversion
99        expand "version": project.version
100    }
101
102    // copy everything else, thats not the mcmod.info
103    from(sourceSets.main.resources.srcDirs) {
104        exclude "mcmod.info"
105    }
106}
107
108shadowJar {
109    configurations = [project.configurations.shadow]
110    exclude("dummyThing")
111    exclude("LICENSE.txt")
112    setClassifier("release")
113}
114
115mixin {
116    defaultObfuscationEnv "searge"
117    add sourceSets.main, "mixins.crtea.refmap.json"
118}
119
120reobf {
121    shadowJar {
122        classpath = sourceSets.main.compileClasspath
123    }
124}
125
126jar {
127    manifest {
128        attributes(
129                "MixinConfigs": "mixins.crtea.json",
130                "TweakClass": "org.spongepowered.asm.launch.MixinTweaker",
131                "TweakOrder": 0,
132                "FMLCorePluginContainsFMLMod": "true",
133                "FMLCorePlugin": "cf.crocha.crtea.mixin.MixinLoaderForge",
134                "ForceLoadAsMod": "true"
135        )
136    }
137}
138
139build.dependsOn(shadowJar)
140
141import java.nio.file.*
142
143task copyJarToDebug {
144    dependsOn "build"
145    group 'fg_runs'
146    doFirst {
147        Path from = Paths.get("${projectDir}/build/libs/crtea-${project.version}-release.jar")
148        Path to = Paths.get("${projectDir}/debug/mods/crtea.jar")
149        Files.copy(from, to, StandardCopyOption.REPLACE_EXISTING)
150    }
151}