nd4j org.nd4j 1.0.0-beta6 4.0.0 nd4j-jdbc 1.0.0-beta6 pom nd4j-jdbc https://deeplearning4j.org nd4j-jdbc-api nd4j-jdbc-mysql nd4j-jdbc-hsql org.apache.maven.plugins maven-compiler-plugin 1.7 1.7 UTF-8 testresources