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input packageImports must not contain duplicate items
org.eclipse.virgo.kernel.serviceability.Assert$FatalAssertionException: input packageImports must not contain duplicate items at org.eclipse.virgo.kernel.serviceability.Assert.isNull(Assert.java:103) at org.eclipse.virgo.kernel.userregion.internal.importexpansion.AbstractTrackedPackageImports.convertImportedPackageListToMap(AbstractTrackedPackageImports.java:323) at org.eclipse.virgo.kernel.userregion.internal.importexpansion.BundleTrackedPackageImports.getInitialImportedPackages(BundleTrackedPackageImports.java:58) at org.eclipse.virgo.kernel.userregion.internal.importexpansion.BundleTrackedPackageImports.<init>(BundleTrackedPackageImports.java:43) at org.eclipse.virgo.kernel.userregion.internal.importexpansion.StandardTrackedPackageImportsFactory.create(StandardTrackedPackageImportsFactory.java:37) at org.eclipse.virgo.kernel.userregion.internal.importexpansion.ImportExpansionHandler.mergeImports(ImportExpansionHandler.java:160) at org.eclipse.virgo.kernel.userregion.internal.importexpansion.ImportExpansionHandler.mergePromotedImports(ImportExpansionHandler.java:151) at org.eclipse.virgo.kernel.userregion.internal.importexpansion.ImportExpansionHandler.mergePromotedImports(ImportExpansionHandler.java:144) at org.eclipse.virgo.kernel.userregion.internal.importexpansion.ImportExpansionHandler.expandImports(ImportExpansionHandler.java:121) at org.eclipse.virgo.kernel.userregion.internal.equinox.TransformedManifestProvidingBundleFileWrapper$TransformedManifestProvidingBundleFile.getEntry(TransformedManifestProvidingBundleFileWrapper.java:160) at org.eclipse.osgi.baseadaptor.bundlefile.BundleFileWrapperChain.getEntry(BundleFileWrapperChain.java:43) at org.eclipse.core.runtime.internal.adaptor.ClasspathManifest.getManifest(ClasspathManifest.java:49) at org.eclipse.core.runtime.internal.adaptor.EclipseClassLoadingHook.processClass(EclipseClassLoadingHook.java:88) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:596) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:567) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:490) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass_LockClassLoader(ClasspathManager.java:478) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:458) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:400) at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:476) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107) at org.eclipse.virgo.kernel.userregion.internal.equinox.KernelBundleClassLoader.loadClass(KernelBundleClassLoader.java:134) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at org.slf4j.LoggerFactory.bind(LoggerFactory.java:121) at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111) at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:268) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:241) at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:156) at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:132) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:685) at org.springframework.util.PropertyPlaceholderHelper.<clinit>(PropertyPlaceholderHelper.java:40) at org.springframework.util.SystemPropertyUtils.<clinit>(SystemPropertyUtils.java:49) at org.springframework.web.util.Log4jWebConfigurer.initLogging(Log4jWebConfigurer.java:129) at org.springframework.web.util.Log4jConfigListener.contextInitialized(Log4jConfigListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723)