How to use premain method of com.tngtech.jgiven.timing.TimerInjectorAgent class

Best JGiven code snippet using com.tngtech.jgiven.timing.TimerInjectorAgent.premain Github


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...10public class TimerInjectorAgent {11 /**12 * The method implementing the code injection done by Java Agents.13 */14 public static void premain(String args, Instrumentation instrumentation) {15 new AgentBuilder.Default()16 .type(ElementMatchers.isSubTypeOf(ScenarioBase.class))17 .transform((builder, type, classLoader, module) ->18 builder.method(ElementMatchers.named("initialize")19 .or(ElementMatchers.named("finished")))20 .intercept( ).installOn(instrumentation);22 }23}...

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Using AI Code Generation


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1public class TimerInjectorAgent {2 public static void premain(String agentArgs, Instrumentation inst) throws ClassNotFoundException, UnmodifiableClassException {3 inst.addTransformer(new TimerInjector(), true);4 inst.retransformClasses(Class.forName("com.tngtech.jgiven.timing.TimerInjectorAgent"));5 }6}7public class TimerInjector implements ClassFileTransformer {8 public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException {9 if (className.equals("com/tngtech/jgiven/timing/TimerInjectorAgent")) {10 ClassReader classReader = new ClassReader(classfileBuffer);11 ClassWriter classWriter = new ClassWriter(classReader, ClassWriter.COMPUTE_FRAMES);12 ClassVisitor classVisitor = new ClassAdapter(classWriter) {13 public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {14 MethodVisitor methodVisitor = super.visitMethod(access, name, desc, signature, exceptions);15 if (name.equals("premain")) {16 return new MethodAdapter(methodVisitor) {17 public void visitCode() {18 super.visitCode();19 mv.visitVarInsn(ALOAD, 1);20 mv.visitLdcInsn(Type.getType("Lcom/tngtech/jgiven/timing/Timer;"));21 mv.visitMethodInsn(INVOKESTATIC, "com/tngtech/jgiven/timing/TimerInjector", "injectTimer", "(Ljava/lang/String;Ljava/lang/Class;)Ljava/lang/Object;", false);22 mv.visitVarInsn(ASTORE, 2);23 mv.visitVarInsn(ALOAD, 2);24 Label l0 = new Label();25 mv.visitJumpInsn(IFNULL, l0);26 mv.visitVarInsn(ALOAD, 2);27 mv.visitTypeInsn(CHECKCAST, "com/tngtech/jgiven/timing/Timer");28 mv.visitFieldInsn(PUTSTATIC, "com/tngtech/jgiven/timing/Timer", "INSTANCE", "Lcom/tngtech/jgiven/timing/Timer;");

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