Exception in thread "main" java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')

[Nikiba00]

Hi,
Been working on this for a few days and I can't solve this. Whenever I wanna process a .jasper it doesn't work and I get that error instead. I'm working with php 8.1.25, xampp v3.3.0 and since I started 'til now I've been changing my jdk version. At first I thought it was a JasperReports library version (changed it too from 7.0.1 to 6.4.3 on Jaspersoft Studio), then I read something about the jdk but I've tried with jdk 17 (the first one), jdk 1.8.0_60, jdk 1.8.0_251 and now I'm currently with 1.7.0_80 and still the same. I've also tried to generate the pdf using the console but it doesn't work either. Now I'm trying with the hello_world example but the output is the same error/exception

use PHPJasper\PHPJasper;

public function crearReporteArticulo($eventoId, $articuloId)
    {
        require base_path('/vendor/autoload.php');
        $input = __DIR__ . '/vendor/geekcom/phpjasper/examples/hello_world.jasper';
        $output = __DIR__ . '/vendor/geekcom/phpjasper/examples';
        $options = [
            'format' => ['pdf', 'rtf']
        ];
        $jasper = new PHPJasper();
        $jasper->process(
            $input,
            $output,
            $options
        )->execute();//here it crashes
     }

[itssDavyd]

Hi, can you solved this bug??

[yathavsritechnology]

I am also getting this error for newer version of jdk (JDK 17 in my system). i am using debian 12 OS

[1stepatatim3]

i had the same error. solved it by changing jdk-17 to jdk-8 following https://stackoverflow.com/questions/57555867/error-with-versions-of-jdk-while-creating-report-using-phpjasper

[nil0sgarbiero]

Any one to help me solve?
Exception in thread "main" java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader
and java.net.URLClassLoader are in module java.base of loader 'bootstrap') at de.cenote.tools.classpath.ApplicationClasspath.add(ApplicationClasspath.java:75) at de.cenote.tools.classpath.ApplicationClasspath.add(Applic
ationClasspath.java:65) at de.cenote.tools.classpath.ApplicationClasspath.addJars(ApplicationClasspath.java:134) at de.cenote.tools.classpath.ApplicationClasspath.addJarsRelative(ApplicationClasspath.java:151) at de.cenote.jasperstarter.App.processReport(App.java:178) at de.cenote.jasperstarter.App.main(App.java:109)

JAVA_HOME: C:\Program Files\Java\jdk1.8.0_202
java version "1.8.0_202"
Java(TM) SE Runtime Environment (build 1.8.0_202-b08)
Java HotSpot(TM) 64-Bit Server VM (build 25.202-b08, mixed mode)

i Try to putenv but dont solve.
putenv("JAVA_HOME=C:\Program Files\Java\jdk1.8.0_202");
putenv("PATH=" . getenv("JAVA_HOME") . "\bin;" . getenv("PATH"));
//putenv("JAVA_OPTS=--add-opens=java.base/jdk.internal.loader=ALL-UNNAMED");