java.lang.ArrayIndexOutOfBoundsException: null

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java.lang.ArrayIndexOutOfBoundsException: null
at java.lang.System.arraycopy(Native Method)
at org.ethereum.core.CallTransaction$IntType.encodeInt(
at org.ethereum.core.CallTransaction$IntType.encode(
at org.ethereum.core.CallTransaction$Function.encodeArguments(
at org.ethereum.core.CallTransaction$Function.encode(
at org.ethereum.core.CallTransaction.createCallTransaction(
at org.ethereum.facade.EthereumImpl.callConstantFunction(

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