Approach

• You can traverse the tree in in-order way, and see if the elements are assending.

  • You may either put the elements into an array and see if the array is sorted in assending way,

  • or while traversing see if the current element is always greater than or equal to previous element.

    • return false is current data is less than previously printed data.

    • may use a static variable to hold the last printed value.

The Web Services Explorer is a tool available within Eclipse and can be used to test SOAP web services. 

The Web Services Explorer primarily has below funtionalities:

• Browsing and invoking Web services via their WSDL and XSD.

• Biscovering Web services in WS-Inspection 1.0 documents, and in UDDI v2 or v3 registries using the UDDI v2 protocol.

• Publishing Web services to UDDI v2 or v3 registries using the UDDI v2 protocol.

SoapUI is an open-source web service testing application for SOAP and REST web services.

Its functionality covers web service inspection, invoking, development, simulation and mocking, functional testing, load and compliance testing.

A commercial version, SoapUI Pro, which mainly focuses on features designed to enhance productivity, is also available. 

Issue 1

java.lang.ClassNotFoundException:

     com.sun.xml.ws.transport.http.servlet.WSServletContextListener

Solution

Copy “jaxws-rt.jar” from JAX-WS RI zip (downloaded from https://jax-ws.java.net/) to Tomcat library folder “{$TOMCAT}/lib“.

Issue 2

Server startup failed and below errors were observed in logs:

SEVERE: A child container failed during start

We did not had to do any extra configurations for deploying our web service class in Glassfish server. This is because Java EE 5 and above compliant application servers such as Glassfish, comply to JSR 109 (Web services 1.2/1.3) and JSR 224 (JAX-WS 2.0/2.1/2.2).