PermGen space error occurred while getting pdf generation

[udumanajmeer]

Hi Friend,

             This is Uduman, I am coming very long time here. I want to generate Marksheet as a pdf file but I got 10 pdf file(for 10 student) condinuously and suttendly got PermGen space error here. I am using Jasper 5.6.0, Java 1.7 and iText-2.1.7.jar.

My Code:

public String marksheetgeneration(){

HashMap<String, Object> hm = null;

JREmptyDataSource ds = null;

String jasperPath = null;

byte[] bytes = null;

File reportFile = null;

String name = null;

try {

StudentMarkGenerateDAO dao = new StudentMarkGenerateDAO();

hm = new HashMap<String, Object>();

ds = new JREmptyDataSource();

jasperPath = (String) session.getServletContext().getAttribute("JasperPath");

hm = dao.getStudentCourseList(branchId, academicYear, semesterId, searchstatus, searchstatus, studentId);

 

if (hm.size() > 0) {

name = hm.get("registerNumber")+"_SEM"+semesterId;

hm.put("path", jasperPath);

 

ServletOutputStream servletOutputStream = response.getOutputStream();

response.reset();

 

reportFile = new File(jasperPath+ "RegularMarkSheet.jasper");

bytes = JasperRunManager.runReportToPdf(reportFile.getPath(), hm, ds);

hm.clear();

 

response.setContentType("application/pdf");

response.setHeader("Content-Disposition", "attachment;filename="+name+".PDF");

response.setContentLength(bytes.length);

 

servletOutputStream.write(bytes, 0, bytes.length);

servletOutputStream.flush();

servletOutputStream.close();

 

if(searchstatus == 1)

studentList = dao.getStudentList(branchId, academicYear, semesterId, searchstatus,1);

else if(searchstatus == 2)

studentList = dao.getStudentList(branchId, academicYear, semesterId, searchstatus,2);

setSuccess("Report has been taken successfully");

} else {

setError("Report not has been taken successfully");

}

filtercontent();

return "studentsuccess";

} catch(Exception e){

setError("Report not has been taken successfully");

LOGGER.error(e.getMessage(), e);

return ERROR;

}

}

 

My Error:

Jun 15, 2015 5:38:22 PM org.apache.jasper.compiler.TldLocationsCache tldScanJar

INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.

Jun 15, 2015 5:46:22 PM org.apache.coyote.AbstractProtocol pause

INFO: Pausing ProtocolHandler ["http-bio-8083"]

Jun 15, 2015 5:46:24 PM org.apache.coyote.AbstractProtocol pause

INFO: Pausing ProtocolHandler ["ajp-bio-8049"]

Jun 15, 2015 5:46:26 PM org.apache.catalina.core.StandardService stopInternal

INFO: Stopping service Catalina

oader.access$100(Unknown Source)

at java.net.URLClassLoader$1.run(Unknown Source)

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Unknown Source)

at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:132)

at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)

at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:130)

at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:172)

at org.apache.jasper.servlet.JspServletWrapper.getDependants(JspServletWrapper.java:288)

at org.apache.jasper.compiler.Compiler.isOutDated(Compiler.java:488)

at org.apache.jasper.compiler.Compiler.isOutDated(Compiler.java:425)

at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:639)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)

at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:473)

at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)

at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)

at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:455)

at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:324)

at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:415)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:191)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)

Exception in thread "http-bio-8083-exec-7" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-3" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-4" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-1" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-2" Exception in thread "http-bio-8083-exec-9" java.lang.OutOfMemoryError: PermGen space

java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-8" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-5" java.lang.OutOfMemoryError: PermGen space

Exception in thread "ContainerBackgroundProcessor[standardEngine[Catalina]]" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-6" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-11" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-12" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-15" Exception in thread "http-bio-8083-exec-14" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-exec-13" java.lang.OutOfMemoryError: PermGen space

java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-bio-8083-Acceptor-0" java.lang.OutOfMemoryError: PermGen space

Exception in thread "ajp-bio-8049-Acceptor-0" java.lang.OutOfMemoryError: PermGen space

 

After occurred this error, server derminated suttenly. Please help me for this error.

 

[hozawa]

How much memory have you assigned to JasperReports?

As you know, pdf are generated all in memory first before being sent back. This means you'll need more memory.

 

[udumanajmeer]

Hi Hozawa,

           Thanks for your response, I've given lot of memory for jasper. But error is not for that, Actually lot of back up project had in webapp folder, I deleted all back up project from webapp folder and refresh then run the application pdf generated well. I can generate marksheet as pdf now. 

 

Thanks

Uduman