Cryptocurrency Ethereum Mastering Development

How to solve the problem: java.lang.RuntimeException: Error processing transaction request: VM Exception while processing transaction: stack underflow

I generated JAVA wrapper solidity code. I am trying to deploy my contract on our local Ethereum blockchain and and get the following error: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See for further details. WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access […]

Development JSON

Deserialize Json string to object java

I’m getting response in form of string correctly. But when i try to model it to my model class I’m not able to get the values. I have not serialized it properly i Guess. I have tried some other examples but it says: Can not Deserialize instance of out of START_OBJECT My JsonString response : […]