시소당

java.lang.NoClassDefFoundError: org/eclipse/core/runtime/IProgressMonitor

SWT/JFace  
네이티브  그래픽  라이브러리를  import  하지  않아서  오류가  발생한  것이다.  
java.lang.NoClassDefFoundError:  org/eclipse/core/runtime/IProgressMonitor  오류가  발생할때  해결방법

eclipse  build  path에서  

c:\eclipse\plugins\org.eclipse.equinox.common_xxx.jar  
c:\eclipse\plugins\org.eclipse.core.commands_xxx.jar

를  라이브러리로  추가해주면  된다.  
  
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추가  라이브러리  =    +  c:\eclipse\plugins\org.eclipse.core.runtime_xxx.jar  

[출처]  java.lang.NoClassDefFoundError:  org/eclipse/core/runtime/IProgressMonitor|작성자  봄비
http://blog.naver.com/dash0206?Redirect=Log&logNo=80048881351