Java.net.SocketException: Muitos arquivos abertos

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#1

Pessoal estou usando JSF 1.2/Hibernate e Facelets e estou achando uma coisa estranha, na minha aplicação se eu apertar ctrl + f5 algumas vezes para limpar o cache o netbeans comeca disparar essas exception é normal isso ? ou preciso tratar algo?

Agradeco a atenção.

Set 07, 2012 6:45:47 PM org.apache.tomcat.util.net.JIoEndpoint$Acceptor run
SEVERE: Socket accept failed
java.net.SocketException: Muitos arquivos abertos
	at java.net.PlainSocketImpl.socketAccept(Native Method)
	at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
	at java.net.ServerSocket.implAccept(ServerSocket.java:522)
	at java.net.ServerSocket.accept(ServerSocket.java:490)
	at org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket(DefaultServerSocketFactory.java:60)
	at org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:216)
	at java.lang.Thread.run(Thread.java:722)

Set 07, 2012 6:45:47 PM org.apache.myfaces.trinidad.webapp.ResourceServlet service
SEVERE: 
java.io.FileNotFoundException: /home/samuelm/.netbeans/7.2/apache-tomcat-7.0.27.0_base/work/Catalina/localhost/IMC/loader/META-INF/adf/jsLibs/CharSets.js (Muitos arquivos abertos)
	at java.io.FileInputStream.open(Native Method)
	at java.io.FileInputStream.<init>(FileInputStream.java:138)
	at java.io.FileInputStream.<init>(FileInputStream.java:97)
	at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:90)
	at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:188)
	at org.apache.myfaces.trinidad.resource.AggregatingResourceLoader$AggregatingURLConnection.getInputStream(AggregatingResourceLoader.java:229)
	at org.apache.myfaces.trinidad.resource.CachingResourceLoader._getLastModified(CachingResourceLoader.java:221)
	at org.apache.myfaces.trinidad.resource.CachingResourceLoader.access$000(CachingResourceLoader.java:42)
	at org.apache.myfaces.trinidad.resource.CachingResourceLoader$URLStreamHandlerImpl.getInputStream(CachingResourceLoader.java:112)
	at org.apache.myfaces.trinidad.resource.CachingResourceLoader$URLConnectionImpl.getInputStream(CachingResourceLoader.java:198)
	at org.apache.myfaces.trinidad.webapp.ResourceServlet.doGet(ResourceServlet.java:209)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.myfaces.trinidad.webapp.ResourceServlet.service(ResourceServlet.java:162)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:112)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:722)

Exception in thread "Timer-0" java.lang.NoClassDefFoundError: com/mchange/v2/resourcepool/BasicResourcePool$1DestroyResourceTask
	at com.mchange.v2.resourcepool.BasicResourcePool.destroyResource(BasicResourcePool.java:980)
	at com.mchange.v2.resourcepool.BasicResourcePool.removeResource(BasicResourcePool.java:1406)
	at com.mchange.v2.resourcepool.BasicResourcePool.removeResource(BasicResourcePool.java:1378)
	at com.mchange.v2.resourcepool.BasicResourcePool.cullExpired(BasicResourcePool.java:1462)
	at com.mchange.v2.resourcepool.BasicResourcePool.access$1900(BasicResourcePool.java:32)
	at com.mchange.v2.resourcepool.BasicResourcePool$CullTask.run(BasicResourcePool.java:1937)
	at java.util.TimerThread.mainLoop(Timer.java:555)
	at java.util.TimerThread.run(Timer.java:505)
Caused by: java.lang.ClassNotFoundException: com.mchange.v2.resourcepool.BasicResourcePool$1DestroyResourceTask
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1711)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
	... 8 more
#2