presto-example-http/src/main/java/io/prestosql/plugin/example/ExampleTableHandle.java/ExampleTableHandle/ExampleTableHandle
class ExampleTableHandle:    @JsonCreator
    public ExampleTableHandle(
            @JsonProperty("schemaName") String schemaName,
            @JsonProperty("tableName") String tableName)
    {
        this.schemaName = requireNonNull(schemaName, "schemaName is null");
        this.tableName = requireNonNull(tableName, "tableName is null");
    }