Unable to download the build statistics in the form of chart

[Sudarshan v]

Unable to download the build statistics in the form of chart.

Below is the API i am trying to use.

http://URL/rest/api/latest/chart?reportKey=com.atlassian.bamboo.plugin.system.reports:numberOfFailures&buildKeys=PROJ-PLAN&groupByPeriod=YEAR&dateFilter=ALL

Below is the error.

 <message>Could not initialize class org.jfree.chart.JFreeChart</message>    <stack-trace>java.lang.NoClassDefFoundError: Could not initialize class org.jfree.chart.JFreeChart    at org.jfree.chart.ChartFactory.createTimeSeriesChart(ChartFactory.java:1850)    at com.atlassian.bamboo.charts.utils.ChartUtil.createTimeSeriesChart(ChartUtil.java:124)    at com.atlassian.bamboo.reports.charts.BambooReportLineChart.getJFreeChart(BambooReportLineChart.java:52)    at com.atlassian.bamboo.reports.charts.BambooReportLineChart.generateChartParams(BambooReportLineChart.java:47)    at com.atlassian.bamboo.charts.DefaultChartManager.generateReport(DefaultChartManager.java:133)    at com.atlassian.bamboo.charts.DefaultChartManager.getReportData(DefaultChartManager.java:113)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.lang.reflect.Method.invoke(Method.java:498)    at com.atlassian.plugin.util.ContextClassLoaderSettingInvocationHandler.invoke(ContextClassLoaderSettingInvocationHandler.java:26)    at com.sun.proxy.$Proxy345.getReportData(Unknown Source)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.lang.reflect.Method.invoke(Method.java:498)    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)    at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:56)    at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:60)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)    at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)    at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)    at org.eclipse.gemini.blueprint.service.util.internal.aop.ServiceTCCLInterceptor.invokeUnprivileged(ServiceTCCLInterceptor.java:70)    at org.eclipse.gemini.blueprint.service.util.internal.aop.ServiceTCCLInterceptor.invoke(ServiceTCCLInterceptor.java:53)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)    at org.eclipse.gemini.blueprint.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:57)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)    at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)    at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)    at com.sun.proxy.$Proxy919.getReportData(Unknown Source)    at com.atlassian.bamboo.plugins.rest.resource.ChartResource.runReport(ChartResource.java:249)    at com.atlassian.bamboo.plugins.rest.resource.ChartResource.getImageUrl(ChartResource.java:100)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.lang.reflect.Method.invoke(Method.java:498)    at com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper$TypeOutInvoker$1.invoke(DispatchProviderHelper.java:169)    at com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper$1.intercept(DispatchProviderHelper.java:83)    at com.atlassian.plugins.rest.common.interceptor.impl.DefaultMethodInvocation.invoke(DefaultMethodInvocation.java:53)    at com.atlassian.plugins.rest.common.expand.interceptor.ExpandInterceptor.intercept(ExpandInterceptor.java:34)    at com.atlassian.plugins.rest.common.interceptor.impl.DefaultMethodInvocation.invoke(DefaultMethodInvocation.java:53)    at com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper.invokeMethodWithInterceptors(DispatchProviderHelper.java:110)    at com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper$TypeOutInvoker._dispatch(DispatchProviderHelper.java:167)    at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)    at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288)    at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)