If you move your project another places, you can take this error. To fix it, clean below folder inside after close Netbeans and Tomcat.

Vista / 7 : C:\Users\kullanici-adi\.netbeans\version-num(ör:6.9)\config\J2EE\TargetModules
XP : C:\Documents and Settings\kullanici-adi\.netbeans\version-num(ör:6.9)\config\J2EE\TargetModules

java.io.IOException: tmpFile.renameTo(classFile) failed
org.apache.jasper.compiler.SmapUtil$SDEInstaller.install(SmapUtil.java:246)
org.apache.jasper.compiler.SmapUtil.installSmap(SmapUtil.java:165)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:454)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:349)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:327)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:589)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:62)
org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:109)
org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:138)
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:83)
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:67)
org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:359)
org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:275)
org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:343)
org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:272)
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:83)
com.oy.std.web.CharsetFilter.doFilter(CharsetFilter.java:48)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)