not able to execute the script getting below error

[RemoteTestNG] detected TestNG version 6.14.3

[TestNGContentHandler] [WARN] It is strongly recommended to add "<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >" at the top of your file, otherwise TestNG may fail or not work as expected.

FAILED: getStudentInfo

java.lang.NoClassDefFoundError: groovy/lang/GroovyObject

at java.base/java.lang.ClassLoader.defineClass1(Native Method)

at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1012)

at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)

at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862)

at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760)

at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681)

at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639)

at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)

at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)

at io.restassured.RestAssured.<clinit>(RestAssured.java:355)

at StudentDetails.getStudent.getStudentInfo(getStudent.java:12)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:568)

at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)

at org.testng.internal.Invoker.invokeMethod(Invoker.java:583)

at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:719)

at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:989)

at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)

at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)

at org.testng.TestRunner.privateRun(TestRunner.java:648)

at org.testng.TestRunner.run(TestRunner.java:505)

at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)

at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)

at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)

at org.testng.SuiteRunner.run(SuiteRunner.java:364)

at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)

at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)

at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)

at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)

at org.testng.TestNG.runSuites(TestNG.java:1049)

at org.testng.TestNG.run(TestNG.java:1017)

at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)

at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)

at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)

Caused by: java.lang.ClassNotFoundException: groovy.lang.GroovyObject

at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)

at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)

at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)

... 36 more

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Default test

Tests run: 1, Failures: 1, Skips: 0

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Default suite

Total tests run: 1, Failures: 1, Skips: 0

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