<dependency>
<groupId>org.web3j</groupId>
<artifactId>core</artifactId>
<version>4.8.9-android</version>
</dependency>
compile
|-- org.web3j:abi:4.8.9-android
|-- org.web3j:crypto:4.8.9-android
|-- org.web3j:tuples:4.8.9-android
|-- com.github.jnr:jnr-unixsocket:0.21
|-- com.squareup.okhttp3:okhttp:4.9.0
|-- com.squareup.okhttp3:logging-interceptor:4.9.0
|-- io.reactivex.rxjava2:rxjava:2.2.2
|-- org.java-websocket:Java-WebSocket:1.3.8