org.glassfish.jersey.server.ContainerException: java.lang.NoClassDefFoundError: org.testng.TestNG?

Question

I have project in eclipse it's an WebService Project REST API's and i have also added another project in Configure Build path -> Add Project and i have added one another Project in my API method i am calling TestNGCreator class look below.

Basically this project uses jersey framework in java creating REST API and when i am calling any perticular method i.e. execute it will call another class which resides in another project i have added project in Build path of this project my other methods are working fine but when i am calling method from different project i having this error.

Do i need to declare some where that i am using this class and this method in POM.xml or some where else

I need to run the automation by calling this TestNGCreator.main(null); my another project is automation project in java TestNGCreator class resides in automation project.By calling this method i need to call above class and when i am doing it i am getting error.

Error :

    May 17, 2019 4:20:51 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Jersey Web Application] in context with path [/webservices] threw exception [org.glassfish.jersey.server.ContainerException: java.lang.NoClassDefFoundError: org/testng/TestNG] with root cause
java.lang.ClassNotFoundException: org.testng.TestNG
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1955)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1798)
    at testDrivers.TestNGCreator.runTestNGTest(TestNGCreator.java:44)
    at testDrivers.TestNGCreator.main(TestNGCreator.java:165)
    at com.xyz.webservices.Resource.executeScript(Resource.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:143)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:160)
    at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:158)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:97)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
    at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:303)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:286)
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1072)
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:399)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:1025)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1137)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:317)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

File : Resource.java

      @POST
      @Path("/execute")
      @Consumes(MediaType.APPLICATION_JSON)
      @Produces(MediaType.APPLICATION_JSON)
      public Response executeScript(String data) throws JSONException
        {   
            ArrayList<Object> testCases = new ArrayList<Object>();
            JSONArray jsonArray = new JSONArray();
            JSONObject json = new JSONObject(data);
            String configFile = (String) json.get("ConfigFiles");
            String sheetName = (String) json.get("Sheetname");
            jsonArray = (JSONArray) json.get("testCases");

            for (int i = 0 ; i < jsonArray.length() ; i++)
            {
                testCases.add(jsonArray.get(i));
            }

            try {
                TestNGCreator.main(null); //here  i am calling that class main method
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            Response response = null;
            System.out.println(jsonArray);
            System.out.println(testCases);
            return response;
        }

File : TestNGCreator.java

package testDrivers;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.testng.TestNG;
import org.testng.xml.XmlClass;
import org.testng.xml.XmlSuite;
import org.testng.xml.XmlTest;

import projlib.Globals;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.Iterator;

import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;

import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;




public class TestNGCreator 
{

    public void runTestNGTest() throws IOException 
    {

            System.out.println("Print this line in console");
            //Create an instance on TestNG
            TestNG myTestNG = new TestNG();

            //Create an instance of XML Suite and assign a name for it.
            XmlSuite mySuite = new XmlSuite();
            mySuite.setName(Globals.SUITE_NAME);

            //Create a list of XmlTests and add the Xmltest you created earlier to it.
            List<XmlTest> myTests = new ArrayList<XmlTest>();

            XSSFSheet excelWSheet = null;
            XSSFWorkbook excelWBook = null;
            XSSFCell cell = null;
            XSSFRow row = null;

            Double dblCellVal;
            String strCellVal = null;
            Boolean blnCellVal;

            FileInputStream excelFile = new FileInputStream(Globals.CONFIG_FILE_DIR+"/CropRecordConfig.xlsx");
            excelWBook = new XSSFWorkbook(excelFile);
            excelWSheet = excelWBook.getSheet("CropAdd");


            Iterator <Row> rowIterator = excelWSheet.iterator(); 
            //Iterator <Cell> cellIterator = row.cellIterator();
            String testName = null;
            int colCount;

            if (rowIterator.hasNext())
            {
                row = (XSSFRow) rowIterator.next();
                colCount = row.getPhysicalNumberOfCells();
            }
            while (rowIterator.hasNext())
            {
                row = (XSSFRow) rowIterator.next();
                Iterator <Cell> cellIterator = row.cellIterator();
                int curCell = 0;
                while (cellIterator.hasNext())
                {
                    cell = (XSSFCell) cellIterator.next();
                    curCell++;
                    switch (cell.getCellType())
                    {
                    case Cell.CELL_TYPE_NUMERIC:
                        dblCellVal = cell.getNumericCellValue();
                        strCellVal = dblCellVal.toString();
                        break;
                    case Cell.CELL_TYPE_STRING:
                        strCellVal = cell.getStringCellValue();
                        break;
                    case Cell.CELL_TYPE_BOOLEAN:
                        blnCellVal = cell.getBooleanCellValue();
                        strCellVal = blnCellVal.toString();
                        break;
                    }

                    //If it is first cell then store the Test Name
                    if (cell.getColumnIndex()== 0)
                    {
                        testName = strCellVal;
                    }

                    if (curCell == 5) {
                        if (strCellVal.equals("1.0")) {
                            //Adding to suite
                            //Create an instance of XmlTest and assign a name for it.
                            XmlTest myTest = new XmlTest(mySuite);
                            myTest.setName(testName);

                            //Add any parameters that you want to set to the Test.
                            Map<String, String> testngParams = new HashMap<String,String> ();
                            testngParams.put("testId", testName);
                            myTest.setParameters(testngParams);

                            //Create a list which can contain the classes that you want to run.
                            List<XmlClass> myClasses = new ArrayList<XmlClass> ();
                            myClasses.add(new XmlClass("TestDriver"));

                            //Assign that to the XmlTest Object created earlier.
                            myTest.setXmlClasses(myClasses);

                            //Adding the test to test list created earlier
                            myTests.add(myTest);
                            break;

                        }
                    }
                }

            }

            excelWBook.close();

            //add the list of tests to your Suite.
            mySuite.setTests(myTests);

            //Add the suite to the list of suites.
            List<XmlSuite> mySuites = new ArrayList<XmlSuite>();
            mySuites.add(mySuite);

            //Set the list of Suites to the testNG object you created earlier.
            myTestNG.setXmlSuites(mySuites);

            File file = new File(Globals.TESTNG_FILE_NAME);
            System.out.println("File is: " + file);

            FileWriter writer = new FileWriter(file);
            writer.write(mySuite.toXml());
            writer.close();

            //invoke run() - this will run your class.
            //myTestNG.run();




    }
    public static void main(String args[]) throws IOException
    {
        TestNGCreator testDriver = new TestNGCreator();
        testDriver.runTestNGTest();
    }
}

File : POM.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <groupId>com.xyz</groupId>
    <artifactId>webservices</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>webservices</name>

    <build>
        <finalName>webservices</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.5.1</version>
                <inherited>true</inherited>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.glassfish.jersey</groupId>
                <artifactId>jersey-bom</artifactId>
                <version>${jersey.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.glassfish.jersey.containers</groupId>
            <artifactId>jersey-container-servlet</artifactId>
            <!-- use the following artifactId if you don't need servlet 2.x compatibility -->
            <!-- artifactId>jersey-container-servlet</artifactId -->
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.core</groupId>
            <artifactId>jersey-client</artifactId>
        </dependency>
        <!-- uncomment this to get JSON support-->
        <dependency>
            <groupId>org.glassfish.jersey.media</groupId>
            <artifactId>jersey-media-moxy</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.2.2</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
             <version>20080701</version>
       </dependency>
         <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi</artifactId>
        <version>3.15</version>
    </dependency>

    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
        <version>3.15</version>
    </dependency>
    </dependencies>

    <properties>
        <jersey.version>2.16</jersey.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
</project>

Any suggestion will be appreciated thank you ^.^

Answer 1

I do not see the test-ng dependency in your pom file. Please add the below and try.

<dependency>
    <groupId>org.testng</groupId>
    <artifactId>testng</artifactId>
    <version>6.10</version>
    <scope>test</scope>
</dependency>