Keep Ethereum.close() from trying to shut down twice #722
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As reported at https://gitter.im/ethereum/ethereumj?at=5890fb0edcb66e4f76d5367d, currently
EthereumImpl.close()
callsApplicationContext.close()
, which callsEthereumImpl.stop()
, which callsEthereumImpl.close()
again.This breaks the loop so that EthereumJ only attempts to shut down once.