walker-dependencies-3 online.skyopen 3.2.0 4.0.0 walker-ml-openocr walker-ml-openocr jar 4.16.16 junit junit test online.skyopen walker-infrastructure provided com.baidu.aip java-sdk ${baidu-aip-sdk.version} junit junit org.mockito mockito-inline org.slf4j slf4j-api org.slf4j slf4j-simple