jpmml-tensorflow mvn clean package exception

[lijunyong]

[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /opt/jpmml-tensorflow/src/main/java/org/jpmml/tensorflow/SavedModel.java:[136,50] incompatible types: java.util.List<org.tensorflow.Tensor<?>> cannot be converted to java.util.List<org.tensorflow.Tensor>
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.203 s
[INFO] Finished at: 2018-03-01T18:00:01+08:00
[INFO] Final Memory: 21M/61M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.5.1:compile (default-compile) on project jpmml-tensorflow: Compilation failure
[ERROR] /opt/jpmml-tensorflow/src/main/java/org/jpmml/tensorflow/SavedModel.java:[136,50] incompatible types: java.util.List<org.tensorflow.Tensor<?>> cannot be converted to java.util.List<org.tensorflow.Tensor>
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException