<b>I am getting the below error when I am integrating our Spring application with activiti.</b>
Caused by: java.lang.ExceptionInInitializerError at org.apache.jasper.compiler.Validator$ValidateVisitor.getJspAttribute(Validator.java:1390) at org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1204) at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:855) at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1535) at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2375) at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2427) at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2433) at org.apache.jasper.compiler.Node$Root.accept(Node.java:464) at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2375) at org.apache.jasper.compiler.Validator.validateExDirectives(Validator.java:1819) at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:218) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:354) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:321) at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:652) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:358) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:402) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:346) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:81) at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) at io.undertow.jsp.JspFileHandler.handleRequest(JspFileHandler.java:32) at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:265) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchToServlet(ServletInitialHandler.java:210) at io.undertow.servlet.spec.RequestDispatcherImpl.includeImpl(RequestDispatcherImpl.java:343) at io.undertow.servlet.spec.RequestDispatcherImpl.include(RequestDispatcherImpl.java:256) at org.apache.tiles.request.servlet.ServletRequest.doInclude(ServletRequest.java:243) … 38 more Caused by: java.lang.NullPointerException at javax.el.CompositeELResolver.add(CompositeELResolver.java:117) at org.apache.jasper.el.ELContextImpl.(ELContextImpl.java:87) … 70 more
<b> We have included the below dependency in our pom.xml file</b>
<b>We resolved it temporarily by deleting juel-spi-2.2.7.jar and added javax.el-3.0.1-b05.jar in the lib folder with an entry in Manifest.mf file of javax.el-3.0.1-b05.jar as below</b>
