GroovyCastException

[glassner]

I am getting the exception below while generating a report from my application (using JasperReports 3.7.1), although with iReports there are no problems. Evidenlty the expression below is flawed. Could you please help me understand why and how to correct it ? Thank you !

 

$F{academicDegreeType}.equalsIgnoreCase("DOCTORATE") ?
($V{TotalACTUAL_DEGREE_QTY}== null ? new BigDecimal("0.0") :                                                                                                        $V{TotalACTUAL_DEGREE_QTY}) + $F{actualDegreeQty} :
$V{TotalACTUAL_DEGREE_QTY}
 

 

Code:

net.sf.jasperreports.engine.fill.JRExpressionEvalException: Error evaluating expression : 	Source text : $F{academicDegreeType}.equalsIgnoreCase("DOCTORATE") ?($V{TotalACTUAL_DEGREE_QTY}== null ? new BigDecimal("0.0") : $V{TotalACTUAL_DEGREE_QTY}) + $F{actualDegreeQty} :$V{TotalACTUAL_DEGREE_QTY}	at net.sf.jasperreports.engine.fill.JREvaluator.evaluateEstimated(JREvaluator.java:253)	at net.sf.jasperreports.engine.fill.JRCalculator.evaluateEstimated(JRCalculator.java:561)	at net.sf.jasperreports.engine.fill.JRCalculator.estimateVariables(JRCalculator.java:165)	at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:784)	at net.sf.jasperreports.engine.fill.JRBaseFiller.next(JRBaseFiller.java:1448)	at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:108)	at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:923)	at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:845)	at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:85)	at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:624)	at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:605)	at mil.af.au.repm.web.action.report.BaseReportAction.generatePdfReport(BaseReportAction.java:66)	at mil.af.au.repm.web.action.report.AADQuotaComparisonAction.generateReport(AADQuotaComparisonAction.java:95)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:585)	at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:269)	at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:170)	at org.apache.struts.actions.LookupDispatchAction.execute(LookupDispatchAction.java:146)	at org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58)	at org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67)	at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)	at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)	at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)	at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)	at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)	at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)	at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)	at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)	at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)	at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)	at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)	at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)	at java.lang.Thread.run(Thread.java:595)Caused by: org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object '13' with class 'java.lang.String' to class 'java.lang.Integer'	at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToNumber(DefaultTypeTransformation.java:127)	at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToType(DefaultTypeTransformation.java:256)	at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.castToType(ScriptBytecodeAdapter.java:632)	at AAD32Quota32Comparison_1272892388946_397215.evaluateEstimated(calculator_AAD32Quota32Comparison_1272892388946_397215:502)	at net.sf.jasperreports.engine.fill.JREvaluator.evaluateEstimated(JREvaluator.java:242)

[keithrbennett]

I think you need some more parentheses:

$F{academicDegreeType}.equalsIgnoreCase("DOCTORATE")    ? (($V{TotalACTUAL_DEGREE_QTY} == null        ? new BigDecimal("0.0")        : $V{TotalACTUAL_DEGREE_QTY})      + $F{actualDegreeQty})    : $V{TotalACTUAL_DEGREE_QTY}

With the ternary operator, you need to make sure that it's clear to the compiler that both of the conditional values are unambiguous.  Extra parens never hurt:

condition ? (true_expr) : (false_expr)

- Keith