java.lang.OutOfMemoryError: Java heap space on JSP Pages

Question

I was getting out of memory error on a spring framework application. I disabled a few filters (like security filter). But now the error is coming on JSP Pages. My JSP pages are quite heavy and use Tile Framework.

Unfortunately the hosting I have is providing only 32 MB of heap space and I could not increase that.

I have added a few lines in my layout page:

final long  MEGABYTE = 1024L * 1024L;

// Get current size of heap in bytes
long heapSize = Runtime.getRuntime().totalMemory();
out.println("Total Memory (MB): "+(heapSize / MEGABYTE ));

// Get maximum size of heap in bytes. The heap cannot grow beyond this size.
// Any attempt will result in an OutOfMemoryException.
long heapMaxSize = Runtime.getRuntime().maxMemory();
out.println("<br/>Heap Max Size (MB): "+(heapMaxSize / MEGABYTE ));

// Get amount of free memory within the heap in bytes. This size will increase
// after garbage collection and decrease as new objects are created.
long heapFreeSize = Runtime.getRuntime().freeMemory();
out.println("<br/>Heap Free Size (MB): "+(heapFreeSize / MEGABYTE ));

The above prints following output at output (HTML Page)

Total Memory (MB): 29 
Heap Max Size (MB): 29 
Heap Free Size (MB): 3

Here is the stack trace:

javax.servlet.jsp.JspException: ServletException in '/jsp/fragments/account/newAccount.jsp': java.lang.OutOfMemoryError: Java heap space
at org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:921)
at org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:460)
at org.apache.jsp.jsp.common.tiles.layout_jsp._jspx_meth_tiles_005finsert_005f3(layout_jsp.java:818)
at org.apache.jsp.jsp.common.tiles.layout_jsp._jspService(layout_jsp.java:428)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:662)

What is your question? I think we would need some code to be able to help you. — Shaded
– Shaded, Commented Aug 30, 2011 at 15:42
My question is that i want to get rid from Out of Heapspace error even on 32 MB of space by using some best practices of JSP that reduce memory space or something like that. — Naveed Kamran
– Naveed Kamran, Commented Aug 30, 2011 at 16:00

Unmitigated · Accepted Answer · 2018-12-29 19:48:37Z

4

I have is providing only 32 MB of heap space and I could not increase that..

Sorry, but then that's the end of story. You have 2 options:

Rewrite your views to be more memory efficient. Perhaps you need to fall back to plain vanilla JSP/Servlet without any additional frameworks which each of course needs their own memory share.
Give the server more memory. Upgrade your existing hosting account or migrate to a different host.

edited Dec 29, 2018 at 19:48

Unmitigated

91.5k12 gold badges103 silver badges109 bronze badges

answered Aug 30, 2011 at 15:49

BalusC

1.1m377 gold badges3.7k silver badges3.6k bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Santosh · Accepted Answer · 2011-09-02 15:05:35Z

2

Profiling your application could be one option which will give you insight into what actually is causing an OutOfMemory error and if it is really possible to optimize the code without increasing the physical memory.

answered Sep 2, 2011 at 15:05

Santosh

18k4 gold badges58 silver badges80 bronze badges

Collectives™ on Stack Overflow

java.lang.OutOfMemoryError: Java heap space on JSP Pages

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related