In Linux, JBoss cannot display JasperReport reports.

Article Title: JBoss reports cannot be displayed in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

1. Symptoms

The following error logs are usually displayed:

Caused by: java. lang. NoClassDefFoundError

At java. lang. Class. forName0 (Native Method)

At java. lang. Class. forName (Class. java: 164)

At java. awt. GraphicsEnvironment. getLocalGraphicsEnvironment (GraphicsEnvironment. java:

2. Cause

X Server service is required for Linux environment processing. If no graphic module is installed on Linux, no x Server service is available. On the other hand, even if X Server service is available, this error also occurs when the Linux system memory is insufficient.

3. Solution

Use the image processing service provided by JDK as follows:

Edit run. conf and add-Djava. awt. headless = true to JAVA_OPTS.