server is running in Apache Felix as java -jar bin/felix.jar server/createServer request fails with exceptions SEVERE: Internal error: java.lang.reflect.InvocationTargetException java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$ null $0(GenericEndpoint.java:63) at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:116) at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:252) at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:181) at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:183) at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:92) at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:95) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang. Thread .run( Thread .java:748) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$ null $0(GenericEndpoint.java:61) ... 11 more Caused by: java.lang.NoClassDefFoundError: org/jboss/tools/ssp/server/spi/model/polling/IPollResultListener at org.jboss.tools.ssp.server.wildfly.servertype.impl.JBossServerFactory.createServerDelegate(JBossServerFactory.java:41) at org.jboss.tools.ssp.server.model.ServerModel.createServer(ServerModel.java:97) at org.jboss.tools.ssp.server.ServerManagementServerImpl.createServer(ServerManagementServerImpl.java:215) ... 16 more Caused by: java.lang.ClassNotFoundException: org.jboss.tools.ssp.server.spi.model.polling.IPollResultListener not found by org.jboss.tools.ssp.server [12] at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1639) at org.apache.felix.framework.BundleWiringImpl.access$200(BundleWiringImpl.java:80) at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2053) at java.lang. ClassLoader .loadClass( ClassLoader .java:357) ... 19 more