JasperSoft Studio not recognizing self-defined function libraries

[simon.lischka]

I'm running into a problem with Jaspersoft Studio. I had a working project with a library defining custom conversion functions. Lately my .jrxml views don't find my functions anymore.

 

When clicking on preview of *file1.jrxml* in folder *[PROJ_ROOT]/set1*, following error message is thrown:

 

    "The method AUTO_CONVERT(String) is undefined for the type file1_1434540912649_515329"

 

AUTO_CONVERT is located in *[PROJ_ROOT]/src/de/companyname/packagename/MyClass.java*, 

all variables passed to it are of type String. 

Sample from MyClass.java:

 

    package de.companyname.packagename;

    ..

    @FunctionCategories({ de.companyname.packagename.MyClass.class })

    public class MyClass {

    ..

    @Function("AUTO_CONVERT")

    @FunctionParameters({ @FunctionParameter("aString") })

    public static String AUTO_CONVERT(String aString) {

    ...

 

The jasperreports_messages.properties file is in [PROJ_ROOT]/src with content (also tried moving it to same dir as Myclass):

 

    de.companyname.packagename.MyClass.name = MyClass

    de.companyname.packagename.MyClass.description=Custom Functions

    de.companyname.packagename.MyClass.AUTO_CONVERT.name = Auto Convert

    de.companyname.packagename.MyClass.AUTO_CONVERT.description= Descr

 

jasperreports_extension.properties, also in [PROJ_ROOT]/src:

 

    net.sf.jasperreports.extension.registry.factory.functions=net.sf.jasperreports.functions.FunctionsRegistryFactory

    net.sf.jasperreports.extension.functions.test=test

 

Previously I managed to fix these kind of problems by modifying the build path settings and simply adding the project root ( which doesn't change anything now ). My functions don't appear in the expression editor. 

 

JasperSoft also seems to have some kind of problem "acknowleding" my src folder. Instead of displaying a folder like src directory in the Project Explorer and *de/companyname/packagename* as subelement, it now displays *src/de/companyname/packagename* as one single element. My classes packagenames are marked red and expect src as a prefix (*src.de.companyname.packagename* instead of *de.companyname.packagename*)

 

I can trick JasperSoft into "acknowleding" the src folder by chosing New->SourceFolder in the project root, but this gets changed back by some JasperSoft magic after a while. 

 

Moving to de/companyname/packagename and working without src fixes the packagename issues, but still my views don't recognize my custom classes.

 

My class path looks like this:

 

    <?xml version="1.0" encoding="UTF-8"?> 

    <classpath>

            <classpathentry kind="src" path=""/>

            <classpathentry exported="true" kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>

            <classpathentry exported="true" kind="con" path="net.sf.jasperreports.JR_CONTAINER"/>

            <classpathentry exported="true" kind="con" path="com.jaspersoft.server.JRS_CONTAINER"/>

            <classpathentry kind="output" path="bin"/> 

    </classpath>

 

 

Anyone have an idea what may be going wrong and how to fix this? I'm pretty sure it must be something with the project setup. Simply creating a new one didn't help either.

 

Strangely when I chose the FunctionsLibrary wizard and have JSoft create example methods + a sample report, the expected hello world function fails with a JRExpressionEvalException for the Hello World message. If relevant - sloppy example or my mistake?

 

Thanks

 

Update:

 

I fixed the strange src folder behaviour by doing this:

.classpath:

 

    <?xml version="1.0" encoding="UTF-8"?>

    <classpath>

            <classpathentry kind="src" path="src"/>

            <classpathentry excluding="src/" kind="src" path=""/>

            <classpathentry exported="true" kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>

            <classpathentry exported="true" kind="con" path="net.sf.jasperreports.JR_CONTAINER"/>

            <classpathentry exported="true" kind="con" path="com.jaspersoft.server.JRS_CONTAINER"/>

            <classpathentry kind="output" path="bin"/>

    </classpath>