我正在使用 eclipse e4 rcp 应用程序并尝试在其中使用 JfreeChart。所以我在构建路径的外部 jar 文件中添加了 jcommon-1.0.16.jar、jfreechart-1.0.14.jar、jfreechart-1.0.14-experimental.jar 和 jfreechart-1.0.14-swt.jar。运行应用程序时出现以下错误
org.eclipse.e4.core.di.InjectionException: java.lang.NoClassDefFoundError: org/jfree/data/xy/XYDataset
at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:344)
at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:254)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162)
.............
Caused by: java.lang.ClassNotFoundException: org.jfree.data.xy.XYDataset cannot be found by com.xyz.project_1.0.0.qualifier
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
谁能建议如何进行?