MAC使用IDEA出現如下錯誤：Caused by: java.lang.NoSuchMethodError: org.apache.commons.lang3.StringUtils.isNoneEmpty([Ljava/lang/CharSequence;)Z
at org.activiti.editor.language.json.converter.BpmnJsonConverter.convertToJson(BpmnJsonConverter.java:242)
at org.activiti.editor.ui.ConvertProcessDefinitionPopupWindow$2.buttonClick(ConvertProcessDefinitionPopupWindow.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:510)
... 36 more
解決方案：pom文件中依賴的lang3是3.1版本，不支持isNoneEmpty，<dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.1</version> </dependency>；
修改lang3的版本爲3.9版本即可<dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.9</version> </dependency>