JDK version

• Java 1.2 uses major version 46
• Java 1.3 uses major version 47
• Java 1.4 uses major version 48
• Java 5 uses major version 49
• Java 6 uses major version 50
• Java 7 uses major version 51
• Java 8 uses major version 52

JDK版本不兼容会导致下面类似的错误

cannot access com.cainiao.conplatform.servicecenter.common.dataobject.LinkNodeInfoDO
bad class file: com/cainiao/conplatform/servicecenter/common/dataobject/LinkNodeInfoDO.class(com/cainiao/conplatform/servicecenter/common/dataobject:LinkNodeInfoDO.class)
class file has wrong version 52.0, should be 50.0