[#12816] - Bar Chart throwing error if more than 7 category series are defined

net.sf.jasperreports.engine.JRException: java.lang.IndexOutOfBoundsException: Index: 7, Size: 7
at com.jaspersoft.studio.editor.preview.view.control.ReportController.fillReport(ReportController.java:551)
at com.jaspersoft.studio.editor.preview.view.control.ReportController.access$18(ReportController.java:526)
at com.jaspersoft.studio.editor.preview.view.control.ReportController$1.run(ReportController.java:444)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: java.lang.IndexOutOfBoundsException: Index: 7, Size: 7
at java.util.ArrayList.rangeCheck(ArrayList.java:657)
at java.util.ArrayList.get(ArrayList.java:433)
at net.sf.jasperreports.chartthemes.spring.EyeCandySixtiesChartTheme.createBarChart(EyeCandySixtiesChartTheme.java:295)
at net.sf.jasperreports.chartthemes.spring.GenericChartTheme.createChart(GenericChartTheme.java:287)
at net.sf.jasperreports.engine.fill.JRFillChart.evaluateChart(JRFillChart.java:845)
at net.sf.jasperreports.engine.fill.JRFillChart.evaluateRenderer(JRFillChart.java:798)
at net.sf.jasperreports.engine.fill.JRFillChart.resolveElement(JRFillChart.java:1406)
at net.sf.jasperreports.engine.fill.JRFillElement.performDelayedEvaluation(JRFillElement.java:1136)
at net.sf.jasperreports.engine.fill.JRFillElement.resolveElement(JRFillElement.java:1238)
at net.sf.jasperreports.engine.fill.ElementEvaluationAction.execute(ElementEvaluationAction.java:69)
at net.sf.jasperreports.engine.fill.DelayedFillActions.runActions(DelayedFillActions.java:271)
at net.sf.jasperreports.engine.fill.BaseReportFiller.resolveBoundElements(BaseReportFiller.java:807)
at net.sf.jasperreports.engine.fill.JRBaseFiller.resolveReportBoundElements(JRBaseFiller.java:1202)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillSummary(JRVerticalFiller.java:1223)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportEnd(JRVerticalFiller.java:297)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:117)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:615)
at net.sf.jasperreports.engine.fill.BaseFillHandle$ReportFill.run(BaseFillHandle.java:135)
at java.lang.Thread.run(Thread.java:748)