So I'm trying to create an instance of Block

static {
        Block funnyUselessBlockWithNoPurpose = new Block(BlockBehaviour.Properties.of(Material.AIR));
}

 

I don't want to register it in block registry or use it anywhere else, only need this temporary to measure a few things. However it fails with "Registry is already frozen".

Shouldn't block register when I actually call `BLOCKS.register(name, block);`?
 

Spoiler

 

java.lang.reflect.InvocationTargetException: null
	at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:?]
	at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77) ~[?:?]
	at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:?]
	at java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) ~[?:?]
	at java.lang.reflect.Constructor.newInstance(Constructor.java:480) ~[?:?]
	at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:68) ~[javafmllanguage-1.19.3-44.1.4.jar%23187!/:?]
	at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$10(ModContainer.java:121) ~[fmlcore-1.19.3-44.1.4.jar%23190!/:?]
	at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804) ~[?:?]
	at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796) ~[?:?]
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) ~[?:?]
	at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182) ~[?:?]
	at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) ~[?:?]
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) ~[?:?]
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165) ~[?:?]
Caused by: java.lang.ExceptionInInitializerError
	at ****.mod1.<init>(mod1.java:26) ~[%23191!/:?]
	... 14 more
Caused by: java.lang.IllegalStateException: Registry is already frozen
	at net.minecraftforge.registries.NamespacedWrapper.validateWrite(NamespacedWrapper.java:264) ~[forge-1.19.3-44.1.4_mapped_official_1.19.3-recomp.jar%23185%23192!/:?]
	at net.minecraftforge.registries.NamespacedWrapper.createIntrusiveHolder(NamespacedWrapper.java:358) ~[forge-1.19.3-44.1.4_mapped_official_1.19.3-recomp.jar%23185%23192!/:?]
	at net.minecraft.world.level.block.Block.<init>(Block.java:67) ~[forge-1.19.3-44.1.4_mapped_official_1.19.3-recomp.jar%23186!/:?]
	at ****.modBlocks.<clinit>(modBlocks.java:42) ~[%23191!/:?]
	at ****.<init>(mod1.java:26) ~[%23191!/:?]
	... 14 more

 

 

Edited April 2, 20232 yr by A_A

4 hours ago, A_A said:

So I'm trying to create an instance of Block

Can't you instead use one of the blocks in the Blocks class (such as Blocks.AIR) to do the measurements?

No, I was measuring execution time for a method in my custom block 10000 (A-B testing) times and I was too lazy to wait for Minecraft to load up for every change. Looking at Minecraft code they can do it but with forge in place, it seems register somehow gets called via code injected into block init (probably to register vanilla blocks?).