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groupdocs-signature / GroupDocs.Signature-for-Java-Servlet

Moved to https://github.com/groupdocs-signature/GroupDocs.Signature-for-Java/tree/master/Demos/Servlet
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Getting exception while running project on tomcat #1

Closed samicheemagroupdocs closed 6 years ago

samicheemagroupdocs commented 6 years ago

This issue was originally raised via forum thread: https://forum.groupdocs.com/t/is-ui-signature-available-with-java/6672/11

Hi,

While trying to run project on NetBeans 8.2 and Tomcat 8.5, I am getting following exception:

26-Oct-2018 12:50:13.444 SEVERE [http-nio-8080-exec-56] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [com.groupdocs.ui.signature.servlet.SignatureViewServlet] in context with path [] threw exception java.lang.NullPointerException at com.groupdocs.ui.signature.servlet.SignatureViewServlet.doGet(SignatureViewServlet.java:29) at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)

Furthermore, changing the port in configuration.properties has no impact.

koleslena commented 6 years ago

Hi @samicheemagroupdocs ,

Added tomcat support in version 1.1.0.