here's the whole thing:
net.sf.jasperreports.engine.JRException: Errors were encountered when compiling report expressions class file: org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed: calculator_Collection32Invoice32List32with32Balance32Due_1378761430162_581252: 217: unexpected token: Bill @ line 217, column 22. 1 error at net.sf.jasperreports.compilers.JRGroovyCompiler.compileUnits(JRGroovyCompiler.java:113) at net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:201) at net.sf.jasperreports.engine.JasperCompileManager.compile(JasperCompileManager.java:240) at net.sf.jasperreports.engine.JasperCompileManager.compileToFile(JasperCompileManager.java:156) at net.sf.jasperreports.engine.JasperCompileManager.compileReportToFile(JasperCompileManager.java:439) at com.jaspersoft.ireport.designer.compiler.IReportCompiler.run(IReportCompiler.java:528) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997) Caused by: org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed: calculator_Collection32Invoice32List32with32Balance32Due_1378761430162_581252: 217: unexpected token: Bill @ line 217, column 22. 1 error at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:302) at org.codehaus.groovy.control.ErrorCollector.addFatalError(ErrorCollector.java:149) at org.codehaus.groovy.control.ErrorCollector.addError(ErrorCollector.java:119) at org.codehaus.groovy.control.ErrorCollector.addError(ErrorCollector.java:131) at org.codehaus.groovy.control.SourceUnit.addError(SourceUnit.java:359) at org.codehaus.groovy.antlr.AntlrParserPlugin.transformCSTIntoAST(AntlrParserPlugin.java:141) at org.codehaus.groovy.antlr.AntlrParserPlugin.parseCST(AntlrParserPlugin.java:107) at org.codehaus.groovy.control.SourceUnit.parse(SourceUnit.java:236) at org.codehaus.groovy.control.CompilationUnit$1.call(CompilationUnit.java:161) at org.codehaus.groovy.control.CompilationUnit.applyToSourceUnits(CompilationUnit.java:900) at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:564) at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:540) at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:517) at net.sf.jasperreports.compilers.JRGroovyCompiler.compileUnits(JRGroovyCompiler.java:109) ... 7 more
so how is there an error on line 217, column 22 when the line at that position is "" ??