使用DynamicJasper API生成报告时，会抛出以下异常。在我的逻辑中，单次执行将生成大约5000到10000个报告。 由于此异常，报告生成异常完全被阻止。请建议如何在不增加ulimit选项的情况下修复此解决方案，因为我们无法增加，具体取决于no.of报告。
net.sf.jasperreports.engine.JRException: Error compiling report java source files : /home/gscsfo/Report_1409558503418_133890.java
com.bnp.scm.services.common.exception.BNPApplicationException: net.sf.jasperreports.engine.JRException: Error compiling report java source files : /home/gscsfo/Report_1409558503418_133890.java
at com.bnp.scm.services.scheduler.common.SystemLogger.profile(SystemLogger.java:54)
at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:621)
at com.bnp.scm.services.scheduler.events.EmailAlertAttachment$$EnhancerByCGLIB$$3c6f687d.getPDFAttachment(<generated>)
at com.bnp.scm.services.scheduler.events.ScheduleEmailEvent.processEvent(ScheduleEmailEvent.java:1039)
at com.bnp.scm.services.scheduler.events.ScheduleEmailEvent$$FastClassByCGLIB$$84dbc7ef.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:688)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)
at com.bnp.scm.services.scheduler.common.SystemLogger.profile(SystemLogger.java:54)
at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:621)
at com.bnp.scm.services.scheduler.events.ScheduleEmailEvent$$EnhancerByCGLIB$$f22c0d43.processEvent(<generated>)
at com.bnp.scm.scheduler.job.handler.EmailNotificationJob.run(EmailNotificationJob.java:52)
at com.bnp.scm.scheduler.job.AbstractJob.execute(AbstractJob.java:79)
at com.bnp.scm.scheduler.job.AbstractJob$$FastClassByCGLIB$$d1c345af.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:688)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)
at com.bnp.scm.services.scheduler.common.SystemLogger.profile(SystemLogger.java:54)
at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:621)
at com.bnp.scm.scheduler.job.handler.EmailNotificationJob$$EnhancerByCGLIB$$b1534990.execute(<generated>)
at org.quartz.core.JobRunShell.run(JobRunShell.java:206)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:548)
Caused by: net.sf.dynamicreports.report.exception.DRException: net.sf.jasperreports.engine.JRException: Error compiling report java source files : /home/gscsfo/Report_1409558503418_133890.java
at net.sf.dynamicreports.jasper.builder.JasperReportBuilder.toJasperReport(JasperReportBuilder.java:279)
at net.sf.dynamicreports.jasper.builder.JasperReportBuilder.toJasperPrint(JasperReportBuilder.java:309)
at com.bnp.scm.services.scheduler.events.EmailAlertAttachment.getPDFAttachment(EmailAlertAttachment.java:183)
... 56 more
Caused by: net.sf.jasperreports.engine.JRException: Error compiling report java source files : /home/gscsfo/Report_1409558503418_133890.java
at net.sf.jasperreports.engine.design.JRJavacCompiler.compileClasses(JRJavacCompiler.java:89)
at net.sf.jasperreports.engine.design.JRAbstractClassCompiler.compileUnits(JRAbstractClassCompiler.java:63)
at net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:188)
at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:212)
at net.sf.dynamicreports.jasper.builder.JasperReportBuilder.toJasperReport(JasperReportBuilder.java:276)
... 58 more
Caused by: java.io.IOException: Cannot run program "javac": java.io.IOException: error=24, Too many open files
at java.lang.ProcessBuilder.start(ProcessBuilder.java:460)
at java.lang.Runtime.exec(Runtime.java:593)
at java.lang.Runtime.exec(Runtime.java:466)
at net.sf.jasperreports.engine.design.JRJavacCompiler.compileClasses(JRJavacCompiler.java:58)
... 62 more
Caused by: java.io.IOException: java.io.IOException: error=24, Too many open files
at java.lang.UNIXProcess.<init>(UNIXProcess.java:148)
at java.lang.ProcessImpl.start(ProcessImpl.java:65)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:453)
... 65 more