java.lang.NoClassDefFoundError: sun/tools/javac/Main

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java.lang.NoClassDefFoundError: sun/tools/javac/Main
at org.apache.jasper.compiler.SunJavaCompiler.compile(SunJavaCompiler.java:128)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:238)
at org.apache.jasper.runtime.JspServlet.loadJSP(JspServlet.java:413)
at org.apache.jasper.runtime.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:149)
at org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.java:161)
at org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java:261)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java:503)
at org.apache.tomcat.core.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:163)
at org.apache.tomcat.servlets.DefaultServlet.doGet(DefaultServlet.java:187)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java:503)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:559)
at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:160)
at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java:338)
at java.lang.Thread.run(Unknown Source)

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