Hello,

 

I keep getting a NPE when I create a ExtendedBlockState like this:

 

    public IUnlistedProperty<Integer> unlistedProperty = new IUnlistedProperty<Integer>()
    {
        @Override
        public String getName()
        {
            return "test";
        }

        @Override
        public boolean isValid(Integer value)
        {
            return true;
        }

        @Override
        public Class<Integer> getType()
        {
            return Integer.class;
        }

        @Override
        public String valueToString(Integer value)
        {
            return value.toString();
        }
    };

    private PropertyBool property = PropertyBool.create("test2");

    new ExtendedBlockState(this, new IProperty[]{property}, new IUnlistedProperty[]{unlistedProperty});

 

The stacktrace looks like this:

 

Caused by: java.lang.NullPointerException: null key in entry: null=Optional.absent()
at com.google.common.collect.CollectPreconditions.checkEntryNotNull(CollectPreconditions.java:31)
at com.google.common.collect.ImmutableMap.entryOf(ImmutableMap.java:135)
at com.google.common.collect.ImmutableMap$Builder.put(ImmutableMap.java:206)
at net.minecraftforge.common.property.ExtendedBlockState.buildUnlistedMap(ExtendedBlockState.java:43)
at net.minecraftforge.common.property.ExtendedBlockState.<init>(ExtendedBlockState.java:29)
at de.medusalix.brickcraft.block.BlockDrawBridge.createBlockState(BlockDrawBridge.java:66)
at net.minecraft.block.Block.<init>(Block.java:299)
at de.medusalix.brickcraft.block.BlockBrC.<init>(BlockBrC.java:16)
at de.medusalix.brickcraft.block.BlockDrawBridge.<init>(BlockDrawBridge.java:54)
at de.medusalix.brickcraft.block.Blocks.<clinit>(Blocks.java:11)

 

I've already added a breakpoint to the "buildUnlistedMap" function in ExtendedBlockState, and for some reason, the parameter called "unlistedProperties", which is passed to the function is always null. But that variable should contain my IUnlistedProperty array.

 

I hope you can help me.

 

ss7

 

Wow, you were absolutely right . I just had to declare the 2 properties as static and now it works like a charm . Thank you very much!