jasperreports cannot compile with datetime functions - symbol not found

Question

Jasperreports 6.5.1. In Studio I can run a report that has a textExpression of "TODAY()". In my web server app though, with the jasperreports jar embedded, I get this error:

error: cannot find symbol
                value = TODAY( );

I have the DateTimeFunctions imported, and the function is on the java classpath, but I guess not for the compiler. This is what I have for code, with an attempt to import the required functions statically:

def c = new DateTimeFunctions()
def x = c.TODAY()

JRXmlLoader loader = new JRXmlLoader(new SimpleJasperReportsContext(), new Digester())
JasperDesign designFile = loader.load(sourceFilePath)

// Ensure that custom functions are available when compiling reports.
designFile.addImport("static net.sf.jasperreports.functions.standard.TextFunctions.*")
designFile.addImport("static net.sf.jasperreports.functions.standard.MathFunctions.*")
designFile.addImport("static net.sf.jasperreports.functions.standard.LogicalFunctions.*")
designFile.addImport("static net.sf.jasperreports.functions.standard.DateTimeFunctions.*")

JasperReport jasperReport = JasperCompileManager.compileReport(designFile)

I can compile other jrxml files but the one that has TODAY() in it throws the exception. I suspect this is the case for all the static imports but I can't even get beyond the TODAY() problem. Note that the datetime jar is there in the java classpath because I can call TODAY() as a test.

The source file is groovy; not sure whether that messes with the static imports, or what the problem is. Any help?

Thanks for Alex K's response confirming that nothing mysterious should be going on. I don't think I need groovy-all since I'm not scripting in groovy, it's just that the source file is in groovy. I looked at the generated java code for the JasperCompileManager and see

import static net.sf.jasperreports.functions.standard.DateTimeFunctions.*;

and in the evaluate() method I see

case 9 : 
{
    value = TODAY( ); //$JR_EXPR_ID=9$
    break;
}

However, still the TODAY() method cannot be found. I will rewrite the groovy file as a java file to see if groovy is messing things up. For instance, maybe the method name in all caps is a problem. Or the compiler version - running under 1.8. Anyway, grasping at straws, but will try to stay afloat.

=====================

Ok, I created a java test file to see why I couldn't resolve "TODAY()". Here it is, using a static import as generated in the java code from the jrxml file:

import java.util.Date;
import static net.sf.jasperreports.functions.standard.DateTimeFunctions.*;

class Test {
  Date dtest() {
    return TODAY();
  }

  public static void main(String[] args) {
    Test t = new Test();
    Date d = t.dtest();
    System.out.println(d);
  }
}

And compiling it gives:

javac -cp ./jasperreports-6.5.1.jar;./jasperreports-functions-6.5.1.jar Test.java
Test.java:6: error: cannot find symbol
            return TODAY();
                   ^
symbol:   method TODAY()
location: class Test
1 error

Ok, my java skills aren't the best, so what am I missing here? I am compiling with java version "1.8.0_171".

The only way I can make this work is if the statically imported method is declared "public static". That is,

public static Date TODAY() { ...

but that is not what is in the DateTimeFunctions.java source.

=========================

So, if I read the 6.6.0 documentation here: http://jasperreports.sourceforge.net/sample.reference/functions/index.html, the sample DateTimeFunctions are all declared static, which seems to me to be correct. So, have I downloaded bogus functions jars for 6.5.1, and 6.6.0, and are the "real" ones somewhere yet-to-be-discovered?

jasperreports cannot compile with datetime functions - symbol not found

Answers (1)

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