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FG Legacy Bulk tests #10

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62a4a35
FG Legacy Bulk tests
LexManos Jun 4, 2026
077b192
Fix 1.6.4 Java 8 issues
LexManos Jun 5, 2026
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25 changes: 25 additions & 0 deletions _internal/fg7/minecraft/1.10.2/build.gradle
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plugins {
id 'java'
id 'net.minecraftforge.gradle' version "${gradle_version}"
}

java.toolchain.languageVersion = JavaLanguageVersion.of(8)

minecraft {
mappings channel: 'snapshot', version: mapping_version
runs {
register('client') {
workingDir = file('runs/main/client/')
}
register('server') {
args '--nogui', 'fml_bug', '--port', 25565 + 1102
workingDir = file('runs/main/server/')
}
}
}

apply from: file('../shared.gradle')

dependencies {
implementation minecraft.dependency("net.minecraftforge:forge:${minecraft_version}-${forge_version}")
}
3 changes: 3 additions & 0 deletions _internal/fg7/minecraft/1.10.2/gradle.properties
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minecraft_version=1.10.2
forge_version=12.18.3.2511
mapping_version=20161111-1.10.2
39 changes: 39 additions & 0 deletions _internal/fg7/minecraft/1.10.2/src/main/java/net/miencraftforge/test/TestMod.java
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package net.miencraftforge.test;

import net.minecraftforge.common.ForgeModContainer;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.common.config.Property;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.gameevent.TickEvent;
import net.minecraftforge.fml.relauncher.Side;

import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;

@Mod(modid = "test")
public class TestMod {
public TestMod() {
Property update_check = ForgeModContainer.getConfig().get(ForgeModContainer.VERSION_CHECK_CAT, "Global", true);
update_check.set(false);
// Only register out handler on the server so i can test loading into the full world
if (FMLCommonHandler.instance().getSide() == Side.SERVER)
MinecraftForge.EVENT_BUS.register(this);
}

@SubscribeEvent
public void onServerTick(TickEvent.ServerTickEvent event) {
if (event.phase != TickEvent.Phase.END) return;
System.out.println("SERVER_TICK_SUCCESS");
try {
Files.write(new File("test_marker.txt").toPath(), "SERVER_TICK_SUCCESS".getBytes(StandardCharsets.UTF_8));
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
FMLCommonHandler.instance().getMinecraftServerInstance().initiateShutdown();
}
}
}
9 changes: 9 additions & 0 deletions _internal/fg7/minecraft/1.10.2/src/main/resources/META-INF/mods.toml
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modLoader="javafml"
loaderVersion="*"
license="Example"

[[mods]]
modId="test"
version="0.0"
displayName=""
description=""
25 changes: 25 additions & 0 deletions _internal/fg7/minecraft/1.11.2/build.gradle
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plugins {
id 'java'
id 'net.minecraftforge.gradle' version "${gradle_version}"
}

java.toolchain.languageVersion = JavaLanguageVersion.of(8)

minecraft {
mappings channel: 'snapshot', version: mapping_version
runs {
register('client') {
workingDir = file('runs/main/client/')
}
register('server') {
args '--nogui', 'fml_bug', '--port', 25565 + 1112
workingDir = file('runs/main/server/')
}
}
}

apply from: file('../shared.gradle')

dependencies {
implementation minecraft.dependency("net.minecraftforge:forge:${minecraft_version}-${forge_version}")
}
3 changes: 3 additions & 0 deletions _internal/fg7/minecraft/1.11.2/gradle.properties
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minecraft_version=1.11.2
forge_version=13.20.1.2588
mapping_version=20161220-1.11
39 changes: 39 additions & 0 deletions _internal/fg7/minecraft/1.11.2/src/main/java/net/miencraftforge/test/TestMod.java
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package net.miencraftforge.test;

import net.minecraftforge.common.ForgeModContainer;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.common.config.Property;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.gameevent.TickEvent;
import net.minecraftforge.fml.relauncher.Side;

import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;

@Mod(modid = "test")
public class TestMod {
public TestMod() {
Property update_check = ForgeModContainer.getConfig().get(ForgeModContainer.VERSION_CHECK_CAT, "Global", true);
update_check.set(false);
// Only register out handler on the server so i can test loading into the full world
if (FMLCommonHandler.instance().getSide() == Side.SERVER)
MinecraftForge.EVENT_BUS.register(this);
}

@SubscribeEvent
public void onServerTick(TickEvent.ServerTickEvent event) {
if (event.phase != TickEvent.Phase.END) return;
System.out.println("SERVER_TICK_SUCCESS");
try {
Files.write(new File("test_marker.txt").toPath(), "SERVER_TICK_SUCCESS".getBytes(StandardCharsets.UTF_8));
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
FMLCommonHandler.instance().getMinecraftServerInstance().initiateShutdown();
}
}
}
9 changes: 9 additions & 0 deletions _internal/fg7/minecraft/1.11.2/src/main/resources/META-INF/mods.toml
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modLoader="javafml"
loaderVersion="*"
license="Example"

[[mods]]
modId="test"
version="0.0"
displayName=""
description=""
25 changes: 25 additions & 0 deletions _internal/fg7/minecraft/1.12.2-fg2/build.gradle
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plugins {
id 'java'
id 'net.minecraftforge.gradle' version "${gradle_version}"
}

java.toolchain.languageVersion = JavaLanguageVersion.of(8)

minecraft {
mappings channel: 'snapshot', version: mapping_version
runs {
register('client') {
workingDir = file('runs/main/client/')
}
register('server') {
args '--nogui', 'fml_bug', '--port', 25565 + 1122 + 1 // we have 2 1.12.2 versions, FG2/3
workingDir = file('runs/main/server/')
}
}
}

apply from: file('../shared.gradle')

dependencies {
implementation minecraft.dependency("net.minecraftforge:forge:${minecraft_version}-${forge_version}")
}
3 changes: 3 additions & 0 deletions _internal/fg7/minecraft/1.12.2-fg2/gradle.properties
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minecraft_version=1.12.2
forge_version=14.23.5.2847
mapping_version=20171003-1.12
39 changes: 39 additions & 0 deletions _internal/fg7/minecraft/1.12.2-fg2/src/main/java/net/miencraftforge/test/TestMod.java
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package net.miencraftforge.test;

import net.minecraftforge.common.ForgeModContainer;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.common.config.Property;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.gameevent.TickEvent;
import net.minecraftforge.fml.relauncher.Side;

import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;

@Mod(modid = "test")
public class TestMod {
public TestMod() {
Property update_check = ForgeModContainer.getConfig().get(ForgeModContainer.VERSION_CHECK_CAT, "Global", true);
update_check.set(false);
// Only register out handler on the server so i can test loading into the full world
if (FMLCommonHandler.instance().getSide() == Side.SERVER)
MinecraftForge.EVENT_BUS.register(this);
}

@SubscribeEvent
public void onServerTick(TickEvent.ServerTickEvent event) {
if (event.phase != TickEvent.Phase.END) return;
System.out.println("SERVER_TICK_SUCCESS");
try {
Files.write(new File("test_marker.txt").toPath(), "SERVER_TICK_SUCCESS".getBytes(StandardCharsets.UTF_8));
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
FMLCommonHandler.instance().getMinecraftServerInstance().initiateShutdown();
}
}
}
9 changes: 9 additions & 0 deletions _internal/fg7/minecraft/1.12.2-fg2/src/main/resources/META-INF/mods.toml
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modLoader="javafml"
loaderVersion="*"
license="Example"

[[mods]]
modId="test"
version="0.0"
displayName=""
description=""
2 changes: 1 addition & 1 deletion _internal/fg7/minecraft/1.12.2/build.gradle
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Expand Up @@ -12,7 +12,7 @@ minecraft {
workingDir = file('runs/main/client/')
}
register('server') {
args '--nogui', '--port', 25565 + 1122
args '--nogui', 'fml_bug', '--port', 25565 + 1122
workingDir = file('runs/main/server/')
}
}
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4 changes: 4 additions & 0 deletions _internal/fg7/minecraft/1.12.2/src/main/java/net/miencraftforge/test/TestMod.java
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@@ -1,6 +1,8 @@
package net.miencraftforge.test;

import net.minecraftforge.common.ForgeModContainer;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.common.config.Property;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
Expand All @@ -15,6 +17,8 @@
@Mod(modid = "test")
public class TestMod {
public TestMod() {
Property update_check = ForgeModContainer.getConfig().get(ForgeModContainer.VERSION_CHECK_CAT, "Global", true);
update_check.set(false);
// Only register out handler on the server so i can test loading into the full world
if (FMLCommonHandler.instance().getSide() == Side.SERVER)
MinecraftForge.EVENT_BUS.register(this);
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4 changes: 4 additions & 0 deletions _internal/fg7/minecraft/1.18.2/build.gradle
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Expand Up @@ -8,6 +8,10 @@ java.toolchain.languageVersion = JavaLanguageVersion.of(17)
minecraft {
mappings channel: 'official', version: minecraft_version
runs {
register('client') {
workingDir = file('runs/main/client/')
jvmArgs '--add-opens', 'cpw.mods.bootstraplauncher/cpw.mods.bootstraplauncher=ALL-UNNAMED'
}
register('server') {
args '--nogui', '--port', 25565 + 1182
workingDir = file('runs/main/server/')
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37 changes: 37 additions & 0 deletions _internal/fg7/minecraft/1.6.4/build.gradle
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plugins {
id 'java'
id 'net.minecraftforge.gradle' version "${gradle_version}"
}

java.toolchain.languageVersion = JavaLanguageVersion.of(8)
// Forge 1.6.4 ships ASM 4.1 which does not support java 8
// Either we have to bump the libraries (which is fine) or compile our code for java 6
tasks.withType(JavaCompile) {
options.fork = true
options.compilerArgs += ['-source', '1.6', '-target', '1.6']
}

minecraft {
mappings channel: 'snapshot', version: mapping_version
runs {
register('client') {
workingDir = file('runs/main/client/')
}
register('server') {
args '--nogui', 'fml_bug', '--port', 25565 + 164
workingDir = file('runs/main/server/')
}
}
}

apply from: file('../shared.gradle')

dependencies {
implementation minecraft.dependency("net.minecraftforge:forge:${minecraft_version}-${forge_version}")
// This is required by old Forge versions because Java 8u20 changed the sorting implementation for Lists
// And that causes a ConcurrentModificationException, this **could** be added by Mavenizer but i'm on the fence for doing that.
// https://github.com/MinecraftForge/LegacyJavaFixer/blob/master/src/main/java/net/minecraftforge/legacyjavafixer/sort/LegacyJavaSortTweaker.java
implementation('net.minecraftforge.lex:legacyjavafixer:1.0')
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@zeng-github01 zeng-github01 Jun 5, 2026

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Adding LegacyFixer this way doesn't work, possibly because the game launches before it's applied. We can only add it manually to the working directory.

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@LexManos LexManos Jun 5, 2026

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Ill double check when im back at a computer. I might of added it to my mods folder and forgot while working on other things.

If that is the case. Then it is most likely due to FML not scanning the classpath for tweakers.

Would you happen to know off hand what FML for 1.6.4 DOES scan for tweakers? Im sure itnscans more then just the mods folder as how else would it find in-dev tweakers. Perhaps it just needs an environemt variable of something.

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@zeng-github01 zeng-github01 Jun 5, 2026 •
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I don't understand these underlying things, but I can search the FML source code to try to get relevant information.

I even discovered by reading the source code that AccessTransformer in version 1.6.4 is not automatically applied in the runtime environment; a separate Coremod plugin needs to be written to add a class that inherits from AccessTransformer.

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@LexManos LexManos Jun 5, 2026

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I was able to find it on my phone. need to provide fml.coreMods.load

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@LexManos LexManos Jun 5, 2026

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https://github.com/MinecraftForge/LegacyJavaFixer/blob/6d7b866821fe12da4778fda247c1a6af09dd254d/src/main/java/net/minecraftforge/legacyjavafixer/sort/LegacyJavaSortDummyLoadingPlugin.java#L22

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@zeng-github01 zeng-github01 Jun 5, 2026 •
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https://github.com/MinecraftForge/LegacyJavaFixer/blob/6d7b866821fe12da4778fda247c1a6af09dd254d/src/main/java/net/minecraftforge/legacyjavafixer/sort/LegacyJavaSortDummyLoadingPlugin.java#L22

It's strange that the JAR file I got from Forge Maven doesn't have this namespace and class, but the reference still works.

EDIT:Actually, there were too many irrelevant error codes, and CNF exceptions were pushed to the top. I misread it.

image

// This will bump ASM to a version that supports java 8, also possible to do in mavenizer, but wanted to verify things work on the users side
//implementation('org.ow2.asm:asm-debug-all:5.1')
}
3 changes: 3 additions & 0 deletions _internal/fg7/minecraft/1.6.4/gradle.properties
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minecraft_version=1.6.4
forge_version=9.11.1.964
mapping_version=20130918-1.6.3
53 changes: 53 additions & 0 deletions _internal/fg7/minecraft/1.6.4/src/main/java/net/miencraftforge/test/TestMod.java
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package net.miencraftforge.test;

import cpw.mods.fml.common.FMLCommonHandler;
import cpw.mods.fml.common.ITickHandler;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.TickType;
import cpw.mods.fml.common.registry.TickRegistry;
import cpw.mods.fml.relauncher.Side;

import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.util.EnumSet;
import java.util.logging.LogManager;
import java.util.logging.Logger;

@Mod(modid = "test")
public class TestMod implements ITickHandler {
private static final Logger LOG = LogManager.getLogManager().getLogger("test");
public TestMod() {
LOG.info("Loaded: " + FMLCommonHandler.instance().getSide());
// Only register out handler on the server so I can test loading into the full world
if (FMLCommonHandler.instance().getSide() == Side.SERVER)
TickRegistry.registerTickHandler(this, Side.SERVER);
}

@Override
public void tickStart(EnumSet<TickType> type, Object... tickData) {
}

@Override
public void tickEnd(EnumSet<TickType> type, Object... tickData) {
LOG.info("SERVER_TICK_SUCCESS " + new File("test_marker.txt").getAbsolutePath());
try {
Files.write(new File("test_marker.txt").toPath(), "SERVER_TICK_SUCCESS".getBytes(StandardCharsets.UTF_8));
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
FMLCommonHandler.instance().getMinecraftServerInstance().initiateShutdown();
}
}

@Override
public EnumSet<TickType> ticks() {
return EnumSet.of(TickType.SERVER);
}

@Override
public String getLabel() {
return "test";
}
}
9 changes: 9 additions & 0 deletions _internal/fg7/minecraft/1.6.4/src/main/resources/META-INF/mods.toml
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modLoader="javafml"
loaderVersion="*"
license="Example"

[[mods]]
modId="test"
version="0.0"
displayName=""
description=""
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