Error imprimiendo reportes Guarani 3.18

Buen dia. Estoy teniendo problemas para imprimir cualquier tipo de reporte en guarani 3.18. Si alguien me pudiera guiar un poco se lo agredeceria mucho. Adjunto logs de apache y java bridge. Desde ya muchas gracias
apache logs:

[Tue Mar 30 21:36:31.752762 2021] [php7:notice] [pid 3223] [client ::1:35218] java_InternalException: \n[TRAZA]\n\t<ul>\n\t<li><strong>java_ThrowExceptionProxyFactory->getProxy</strong>
Archivo: /home/matias/proyectos/guarani/vendor/siu-toba/jasper/JavaBridge/java/Java.inc, l\xednea 215
Par\xe1metros: <ol><li><code><span style="color: #000000">\n25</span>\n</code></li>\n<li><code><span style="color: #000000">\norg.postgresql.jdbc4.Jdbc4Connection</span>\n</code></li>\n<li><code><span style="color: #000000">\n</span>\n</code></li>\n<li><code><span style="color: #000000">\n1</span>\n</code></li>\n\t</ol>\n\t</li>\n\t<li><strong>java_Arg->getResult</strong>
Archivo: /home/matias/proyectos/guarani/vendor/siu-toba/jasper/JavaBridge/java/Java.inc, l\xednea 388
Par\xe1metros: <ol><li><code><span style="color: #000000">\n1</span>\n</code></li>\n\t</ol>\n\t</li>\n\t<li><strong>java_Client->getWrappedResult</strong>
Archivo: /home/matias/proyectos/guarani/vendor/siu-toba/jasper/JavaBridge/java/Java.inc, l\xednea 394
Par\xe1metros: <ol><li><code><span style="color: #000000">\n1</span>\n</code></li>\n\t</ol>...SIGUE..., referer: http://localhost/guarani/3.18/aplicacion.php?ah=st6063c40c4d4990.70151720&ai=guarani%7C%7C37000080&tcm=previsualizacion

java bridge console:

log4j:WARN No appenders could be found for logger (net.sf.jasperreports.extensions.ExtensionsEnvironment).
log4j:WARN Please initialize the log4j system properly.
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass$3$1 (file:/home/matias/proyectos/guarani/vendor/siu-toba/jasper/JasperReports/groovy-all-2.0.1.jar) to method java.lang.Object.finalize()
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass$3$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Hola Matias,

Parece que se soluciona con esto:
https://issues.apache.org/jira/browse/GROOVY-8339
https://backstage.forgerock.com/knowledge/kb/article/a15048811

Causes

These warnings occur when using Groovy 2.x with Java 11 but are fixed in Groovy 3.

Solution

These messages can be safely ignored because they do not impact the use or functionality of ForgeRock products. However, if you do not want to see them, you can do one of the following:

* Use Groovy 3.x.
* Whitelist these warnings.
* Downgrade Java to JDK 1.8</blockquote>

¿que versión de Java y Groovy tenes instalado?

saludos.
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