Error when running reports in Jasperserver:Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class java.awt.Color

Issue description:

When trying to run any report on a server, the following error is thrown:

Troubleshooting:

This error is normally associated with a JVM not being started on a Linux machine in AWT headless mode. JasperReports Server doesn’t provide a virtual X frame buffer on Linux. To prevent Java from trying to connect to an X-Server for image processing in JRS, please modify your application server’s startup script to include the following JAVA_OPTS

-Djava.awt.headless=true 

Steps:

1. Open the following file in a text editor:

   /tomcat_home/bin/setenv.sh

2. In the setenv.sh file, add the following options for JAVA_OPTS near the top of the file:

   -Djava.awt.headless=true

3. Save your changes and restart Tomcat for this change to take effect.

Thank You,
Archana Verma
Helical IT Solutions

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