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My web application is meant to be able to export server-side generated charts with a save button. However, upon trying to save any charts that have been displayed in the application, I am greeted with a 404 error page from JBoss. I'm running Linux Mint 17.3. The web application runs on top of Apache, JBoss 3.0.0-CR2, and Java SDK 1.7. It was built with Maven. I've attached a screenshot below. My question is this: why am I getting a 404 error, and where does the issue actually come from?

Upon starting up JBoss for my locally deployed web application, I'm getting two errors - NoClassDefFoundError and ClassNotFoundException. This leaves me unable to export/save charts produced by my application. These are in relation to Fusion Charts' FusionChartsExportHelper class. The relevant logs are below. ERROR [[/ortho]] Servlet /ortho threw load() exception: java.lang.ClassNotFoundException: com.fusioncharts.exporter.FusionChartsExportHelper from BaseClassLoader@73b80c53{vfs:///opt/jboss-6.1.1-SNAPSHOT/server/default/deploy/usc-ortho-1.0.ear/usc-ortho-war-1.0.war/} at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:480) [jboss-classloader.jar:2.2.1.GA] at java.lang.ClassLoader.loadClass(ClassLoader.java:358) [:1.7.0_80] at com.fusioncharts.exporter.servlet.FCExporter.checkExportResources(FCExporter.java:57) [:1.00-b25] at com.fusioncharts.exporter.servlet.FCExporter.init(FCExporter.java:253) [:1.00-b25] ERROR [[/ortho]] StandardWrapper.Throwable: java.lang.NoClassDefFoundError: com/fusioncharts/exporter/FusionChartsExportHelper at com.fusioncharts.exporter.servlet.FCExporter.checkExportResources(FCExporter.java:57) [:1.00-b25] at com.fusioncharts.exporter.servlet.FCExporter.init(FCExporter.java:253) [:1.00-b25] I receive a 404 error in relation to FCExporter when attempting to save/export charts from my application. The 404 page is attached as a screenshot to this post. Where's the issue? What am I doing incorrectly?