[1.15.2] Minecraft Registry Problem When Loading from Jar

[Jack Richard]

I have multiple shadowed dependencies in my mod, and it seems that something isn't working correctly here...

 

When I look in the jar file, all of my dependencies are properly relocated and included, but I seem to have an issue with Minecraft recognizing it as a mod. The error says 

Quote

Mod (modid) encountered an error during the load_registries event phase.

AIR

Very strange. The debug.log shows the mod failed to load because of a

Quote

java.lang.NoSuchFieldError: AIR

 

Here's my build.gradle if that will be any help.

buildscript {
    repositories {
        maven { url = 'https://files.minecraftforge.net/maven' }
        maven { url = "https://plugins.gradle.org/m2/" }
        jcenter()
        mavenCentral()
    }
    dependencies {
        classpath group: 'net.minecraftforge.gradle', name: 'ForgeGradle', version: '3.+', changing: true
    }
}

plugins {
    id "com.github.johnrengelman.shadow" version "2.0.4"
}

apply plugin: 'java'
apply plugin: 'net.minecraftforge.gradle'
apply plugin: 'eclipse'
apply plugin: 'maven-publish'

version = '1.0'
group = 'com.mod.mod' // http://maven.apache.org/guides/mini/guide-naming-conventions.html
archivesBaseName = 'mod'

sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8' // Need this here so eclipse task generates correctly.
//Print out JVM information so that we know what version is running. Extreamly useful for people to know when helping you.
println('Java: ' + System.getProperty('java.version') + ' JVM: ' + System.getProperty('java.vm.version') + '(' + System.getProperty('java.vendor') + ') Arch: ' + System.getProperty('os.arch'))

minecraft {
    // The mappings can be changed at any time, and must be in the following format.
    // snapshot_YYYYMMDD   Snapshot are built nightly.
    // stable_#            Stables are built at the discretion of the MCP team.
    // Use non-default mappings at your own risk. they may not always work.
    // Simply re-run your setup task after changing the mappings to update your workspace.
    mappings channel: 'snapshot', version: '20200514-1.15.1'
    // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
    
    // accessTransformer = file('src/main/resources/META-INF/accesstransformer.cfg')

    // Default run configurations.
    // These can be tweaked, removed, or duplicated as needed.
    runs {
        client {
            workingDirectory project.file('run')

            // Recommended logging data for a userdev environment
            property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'

            // Recommended logging level for the console
            property 'forge.logging.console.level', 'debug'

            mods {
                examplemod {
                    source sourceSets.main
                }
            }
        }

        server {
            workingDirectory project.file('run')

            // Recommended logging data for a userdev environment
            property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'

            // Recommended logging level for the console
            property 'forge.logging.console.level', 'debug'

            mods {
                examplemod {
                    source sourceSets.main
                }
            }
        }

        data {
            workingDirectory project.file('run')

            // Recommended logging data for a userdev environment
            property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'

            // Recommended logging level for the console
            property 'forge.logging.console.level', 'debug'

            args '--mod', 'examplemod', '--all', '--output', file('src/generated/resources/')

            mods {
                examplemod {
                    source sourceSets.main
                }
            }
        }
    }
}

project.tasks.build.dependsOn project.tasks.shadowJar

repositories {
    jcenter()
}

configurations {
    provided
    compile.extendsFrom provided
}

dependencies {
    minecraft 'net.minecraftforge:forge:1.15.2-31.2.36'

    compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.11.2'
    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.11.2'
    compile group: 'org.seleniumhq.selenium', name: 'selenium-java', version: '3.141.59'

    shadow group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.11.2'
    shadow group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.11.2'
    shadow group: 'org.seleniumhq.selenium', name: 'selenium-java', version: '3.141.59'
}

shadowJar {
    configurations = [project.configurations.shadow]

    classifier ''

    relocate('org.apache', 'com.mod.apache')
    relocate('com.google', 'com.mod.google')
}

processResources {
    inputs.property "version", project.version
    inputs.property "mcversion", "1.15.2-31.2.36"

    from(sourceSets.main.resources.srcDirs) {
        include 'mcmod.info'
        expand 'version':project.version, 'mcversion': "1.15.2-31.2.36"
    }

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

jar {
    manifest {
        attributes([
                "Specification-Title": "mod",
                "Specification-Vendor": "mod",
                "Specification-Version": "1", // We are version 1 of ourselves
                "Implementation-Title": project.name,
                "Implementation-Version": "${version}",
                "Implementation-Vendor" :"mod",
                "Multi-Release": 'true',
                "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ"),
                "ContainedDeps": "byte-buddy-1.8.15.jar client-combined-3.141.59.jar commons-exec-1.3.jar guava-25.0-jre.jar okhttp-3.11.0.jar okio-1.14.0.jar"
        ])
    }
}

// Example configuration to allow publishing using the maven-publish task
// This is the preferred method to reobfuscate your jar file
jar.finalizedBy('reobfJar')
// However if you are in a multi-project build, dev time needs unobfed jar files, so you can delay the obfuscation until publishing by doing
//publish.dependsOn('reobfJar')

publishing {
    publications {
        mavenJava(MavenPublication) {
            artifact jar
        }
    }
    repositories {
        maven {
            url "file:///${project.projectDir}/mcmodsrepo"
        }
    }
}

 

My guess is that it is an error with the "minecraft" dependancy, I just don't know where to start on fixing it.

 

Thanks in advance!

[DaemonUmbra]

First of all, why are you shadowing log4j? Minecraft already provides log4j2.

Second if build is running shadowjar instead of jar then you might need to tweak the line where it says jar.finalizedBy('reobfJar') to finalize shadowJar instead

[Jack Richard]

16 minutes ago, DaemonUmbra said:

First of all, why are you shadowing log4j? Minecraft already provides log4j2.

Second if build is running shadowjar instead of jar then you might need to tweak the line where it says jar.finalizedBy('reobfJar') to finalize shadowJar instead

Thanks so much for your help!

I removed the log4j dependency, I honesty don't remember when I put that there. Once I fixed the jar.finalizedBy line, everything worked! (One small issue where I was relocating all of "com.google" when I just should've relocated "com.google.common," too)

 

Thanks again!