1)
java.lang.InternalError: erroneous handlers
error like following
Servlet.service() for servlet action threw exception
java.lang.InternalError: erroneous handlers
at net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:250)
at net.sf.jasperreports.engine.JasperExportManager.exportReportToPdfStream(JasperExportManager.java:167)
at com.justcommodity.cxc.jsp.reports.CxcReportBasedEnhSqlAction$$M$573fee08.write2Stream(CxcReportBasedEnhSqlAction.java:161)
at com.justcommodity.cxc.jsp.reports.CxcReportBasedEnhSqlAction$$M$573fee08.execute(CxcReportBasedEnhSqlAction.java:62)
at com.justcommodity.cxc.jsp.reports.CxcReportBasedEnhSqlAction$$A$573fee08.execute(<generated>:0)
at com.justcommodity.cxc.jsp.reports.CxcReportBasedEnhSqlAction.execute(<generated>:0)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
just cause lacking some jar, like I used jasperreport.jar, but with no iText.jar, so the error happen
2)
java.io.IOException: java.awt.Image fetch aborted or errored
error like following
java.io.IOException: java.awt.Image fetch aborted or errored
at com.lowagie.text.Image.getInstance(Unknown Source)
at com.lowagie.text.Image.getInstance(Unknown Source)
at net.sf.jasperreports.engine.export.JRPdfExporter.exportImage(JRPdfExporter.java:1075)
at net.sf.jasperreports.engine.export.JRPdfExporter.exportElements(JRPdfExporter.java:480)
at net.sf.jasperreports.engine.export.JRPdfExporter.exportPage(JRPdfExporter.java:448)
at net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream(JRPdfExporter.java:413)
at net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:250)
at net.sf.jasperreports.engine.JasperExportManager.exportReportToPdfStream(JasperExportManager.java:167)
at com.justcommodity.cxc.jsp.reports.CxcReportBasedEnhSqlAction.write2Stream(CxcReportBasedEnhSqlAction.java:164)
at com.justcommodity.cxc.jsp.reports.CxcReportBasedEnhSqlAction.execute(CxcReportBasedEnhSqlAction.java:69)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
You know, java can release resource, but it never catch the process of memory running;
So, while doing batch print, so you can open Is Cache & Is Delay, both the two options can make you sure using the pic only once, and read from cache later.
3)
java.io.EOFException
12:06:47,612 ERROR [ReportAction]
demo.jsp.reports.ReportException: java.io.EOFException
at java.io.DataInputStream.readInt(DataInputStream.java:358)
at demo.jsp.reports.Report.throwAnyErrorFromChild(CxcReport.java:664)
at demo.jsp.reports.Report.writeReportToStream(CxcReport.java:740)
at demo.jsp.reports.ReportAction.execute(CxcReportAction.java:110)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:292)
at org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
at org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:79)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:303)
at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:246)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:303)
at com.jc.cxc.web.filter.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:171)
Caused by: java.io.EOFException
32 more
12:06:47,615 ERROR [ReportAction]
ClientAbortException: java.net.SocketException: Write failed: Broken pipe
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:327)
at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:293)
at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:97)
at demo.jsp.reports.ReportAction.execute(ReportAction.java:132)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:292)
at org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
at org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:79)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:303)
at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:246)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:303)
at com.jc.cxc.web.filter.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:171)
Caused by: java.net.SocketException: Write failed: Broken pipe
at jrockit.net.SocketNativeIO.writeBytesPinned(Native Method)
at jrockit.net.SocketNativeIO.socketWrite(Unknown Source)
at java.net.SocketOutputStream.socketWrite0(SocketOutputStream.java)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:746)
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:433)
at org.apache.coyote.http11.InternalOutputBuffer.flush(InternalOutputBuffer.java:304)
at org.apache.coyote.http11.Http11Processor.action(Http11Processor.java:991)
at org.apache.coyote.Response.action(Response.java:182)
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:322)
at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:293)
at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:97)
at com.justcommodity.cxc.jsp.reports.CxcReportAction.execute(CxcReportAction.java:132)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
測試了所有能排除的問題，最后解決了，絕對不解釋，哈哈
另外把java.io.EOFException查找到比較好的資料帖過來：
－－－－－－－－－－－－－－－－－－轉(zhuǎn)－start－－－－－－－－－－－－－－－－－
摘自http://xiao-yi.javaeye.com/blog/151120
摘自http://blog.csdn.net/fengzi1/archive/2008/01/30/2073433.aspx
ClientAbortException,java.net.SocketException.
關(guān)鍵字: Tomcat ClientAbortException
TOMCAT報異常，如下：
引用
java.lang.RuntimeException: javax.xml.transform.TransformerException: ClientAbortException: java.net.SocketException: Software caused connection abort: socket write error
at org.ajaxanywhere.XMLHandler.sendDOMDocument(XMLHandler.java:123)
at org.ajaxanywhere.XMLHandler.sendZones(XMLHandler.java:93)
at org.ajaxanywhere.AAFilter.doFilter(AAFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
等等，在下面還能看到這樣的提示：
Caused by: java.net.SocketException: Connection reset by peer: socket write error
查了下TOMCAT的文檔，解釋如下：
引用
Wrap an IOException identifying it as being caused by an abort of a request by a remote client.
在BAIDU和GOOGLE上找了下原因，大概歸結(jié)為：
ClientAbortException: java.net.SocketException: Connection reset by peer: socket write error的原因是由于處理http連接時，正在輸出內(nèi)容時，用戶關(guān)閉了IE，會出現(xiàn)一個"ClientAbortException"，屬于I/O處理中出現(xiàn)的一個異常，應(yīng)用服務(wù)器應(yīng)該會捕捉。
Connection reset by peer的原因：
經(jīng)常出現(xiàn)的Connection reset by peer: 原因可能是多方面的，不過更常見的原因是：
①：服務(wù)器的并發(fā)連接數(shù)超過了其承載量，服務(wù)器會將其中一些連接Down掉；
②：客戶關(guān)掉了瀏覽器，而服務(wù)器還在給客戶端發(fā)送數(shù)據(jù)；
③：瀏覽器端按了Stop
很多人都說是客戶端造成的，沒有辦法控制，是個比較郁悶的問題。
但是，我擔(dān)心的是：雖然前臺沒有任何出錯的跡象，但是后臺會記錄這個異常，日志也會瘋狂爆滿，時間長了，肯定會DOWN掉的，還沒找到好的解決辦法，若有相同經(jīng)歷，且優(yōu)雅的解決掉的朋友，望告之，謝！
resin有一個參數(shù)ignore-client-disconnect
tomcat似乎沒有
原因:
一般是有些客戶端已關(guān)閉，一些線程因為延遲等原因覺察不到此連接已結(jié)束，繼續(xù)等到到出錯
或是
客戶端那里不停刷或一個訪問/刷新沒完成前再刷，要讓這個無用的線程死掉
這個問題一般是客戶端在連接還沒有完全建立的時候就取消連接，比如用戶按了瀏覽器上面的“停止”按鈕，一般來說沒有什么問題。但是如果頻繁出現(xiàn)，就表示很多客戶端連接到Apache服務(wù)器的響應(yīng)時間太長了，可能是網(wǎng)絡(luò)的問題或者服務(wù)器性能問題。
connection reset 多半是因為對方在你未讀完數(shù)據(jù)之前就關(guān)閉socket.
－－－－－－－－－－－－－－－－－－轉(zhuǎn)－end－－－－－－－－－－－－－－－－－
4)
java.lang.IllegalStateException: getOutputStream() has already been called for this response
2008-04-03 10:56:10,452 ERROR[org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/demo].[action]]http-0.0.0.0-443-12 Servlet.service() for serv
let action threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for this response
at org.apache.catalina.connector.Response.getWriter(Response.java:599)
at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:195)
at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:124)
at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:117)
at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:182)
at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:115)
at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:75)
at org.apache.jsp.admin.admin_005fmpob_005fexport_jsp._jspService(admin_005fmpob_005fexport_jsp.java:119)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
5)
java.lang.OutOfMemoryError: PermGen space
This error occurs when the JVM runs out of space in the permanent generation heap. Since the defaults for the JVM are quite low, the first step should be to increase the default using -XX:MaxPermSize.
<!-- verbose garbage collection -->
<jvm-arg>-XX:MaxPermSize=256m</jvm-arg> <!-- sets the maximum size of the permanent heap (recommended) -->
In Jboss
run.conf, add like the followings:
JAVA_OPTS="$JAVA_OPTS -XX:MaxPermSize=256m"