Custom class loader example

core-java/src/test/java/com/baeldung/classloader/CustomClassLoaderTest.java

@@ -0,0 +1,23 @@
+package com.baeldung.classloader;
+
+import org.junit.Test;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public class CustomClassLoaderTest {
+
+    @Test
+    public void customLoader() throws ClassNotFoundException, IllegalAccessException, InstantiationException, NoSuchMethodException, InvocationTargetException {
+
+        CustomClassLoader customClassLoader = new CustomClassLoader();
+        Class<?> c = customClassLoader.getClass(PrintClassLoader.class.getName());
+
+        Object ob = c.newInstance();
+
+        Method md = c.getMethod("printClassLoaders");
+        md.invoke(ob);
+
+    }
+
+}

core-java/src/test/java/com/baeldung/classloader/PrintClassLoaderTest.java

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+package com.baeldung.classloader;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class PrintClassLoaderTest {
+    @Test(expected = ClassNotFoundException.class)
+    public void givenAppClassLoader_whenParentClassLoader_thenClassNotFoundException() throws Exception {
+        PrintClassLoader sampleClassLoader = (PrintClassLoader) Class.forName(PrintClassLoader.class.getName()).newInstance();
+        sampleClassLoader.printClassLoaders();
+        Class.forName(PrintClassLoader.class.getName(), true, PrintClassLoader.class.getClassLoader().getParent());
+    }
+}

core-java/src/test/java/com/baeldung/classloader/SampleClassLoaderTest.java

@@ -1,14 +0,0 @@
-package com.baeldung.classloader;
-
-import org.junit.Test;
-
-import static org.junit.Assert.*;
-
-public class SampleClassLoaderTest {
-        @Test(expected = ClassNotFoundException.class)
-        public void givenAppClassLoader_whenParentClassLoader_thenClassNotFoundException() throws Exception {
-                SampleClassLoader sampleClassLoader = (SampleClassLoader) Class.forName(SampleClassLoader.class.getName()).newInstance();
-                sampleClassLoader.loadClass();
-
-        }
-}