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- package javassist;
-
- import java.lang.annotation.Annotation;
- import java.lang.reflect.TypeVariable;
-
- import javassist.bytecode.AnnotationsAttribute;
- import javassist.bytecode.AttributeInfo;
- import javassist.bytecode.ClassFile;
- import javassist.bytecode.ConstPool;
- import javassist.bytecode.InnerClassesAttribute;
- import javassist.expr.ExprEditor;
- import javassist.expr.MethodCall;
-
- public class JvstTest5 extends JvstTestRoot {
- public JvstTest5(String name) {
- super(name);
- }
-
- public void testDollarClassInStaticMethod() throws Exception {
- CtClass cc = sloader.makeClass("test5.DollarClass");
- CtMethod m = CtNewMethod.make("public static int run(){ return $class.getName().length(); }", cc);
- cc.addMethod(m);
- m = CtNewMethod.make("public int run2(){ return $class.getName().length(); }", cc);
- cc.addMethod(m);
- cc.writeFile();
- Object obj = make(cc.getName());
- assertEquals(cc.getName().length(), invoke(obj, "run"));
- assertEquals(cc.getName().length(), invoke(obj, "run2"));
- }
-
- public void testSuperDefaultMethodCall() throws Exception {
- CtClass cc = sloader.get("test5.DefaultMethod");
- CtMethod m = CtNewMethod.make("public int run(){ return test5.DefaultMethodIntf.super.foo(); }", cc);
- cc.addMethod(m);
- m = CtNewMethod.make("public int run2(){ return test5.DefaultMethodIntf.baz(); }", cc);
- cc.addMethod(m);
- m = CtNewMethod.make("public int run3(){ return test5.DefaultMethodIntf.super.baz(); }", cc);
- cc.addMethod(m);
- cc.writeFile();
- Object obj = make(cc.getName());
- assertEquals(1, invoke(obj, "run"));
- assertEquals(10, invoke(obj, "run2"));
- assertEquals(10, invoke(obj, "run3"));
- }
-
- public void testTypeAnno() throws Exception {
- CtClass cc = sloader.get("test5.TypeAnno");
- cc.getClassFile().compact();
- cc.writeFile();
- Object obj = make(cc.getName());
- TypeVariable<?> t = obj.getClass().getTypeParameters()[0];
- Annotation[] annos = t.getAnnotations();
- assertEquals("@test5.TypeAnnoA()", annos[0].toString());
- }
-
- public void testJIRA241() throws Exception {
- CtClass cc = sloader.get("test5.JIRA241");
- CtMethod testMethod = cc.getDeclaredMethod("test");
- testMethod.insertAfter("System.out.println(\"inserted!\");");
- cc.writeFile();
- Object obj = make(cc.getName());
- assertEquals(10, invoke(obj, "run"));
- }
-
- public void testJIRA246() throws Exception {
- CtClass ctClass = sloader.makeClass("test5.JIRA246Test");
- ctClass.addInterface(sloader.get(test5.JIRA246.Test.class.getName()));
- String methodBody = "public void test() { defaultMethod(); }";
- CtMethod ctMethod = CtMethod.make(methodBody, ctClass);
- ctClass.addMethod(ctMethod);
- }
-
- public void testJIRA246b() throws Exception {
- CtClass ctClass = sloader.get(test5.JIRA246.A.class.getName());
- String src = "public void id() { get(); }";
- CtMethod make = CtNewMethod.make(src, ctClass);
- }
-
- public void testJIRA242() throws Exception {
- Boolean ss = Boolean.valueOf(2 > 3);
- ClassPool cp = ClassPool.getDefault();
- CtClass cc = cp.get("test5.JIRA242$Hello");
- CtMethod m = cc.getDeclaredMethod("say");
- m.insertBefore("{ System.out.println(\"Say Hello...\"); }");
-
- StringBuilder sb = new StringBuilder();
- sb.append("BOOL_SERIES = createBooleanSeriesStep();");
- //Below code cause the issue
- sb.append("BOOL_SERIES.setValue(3>=3);"); //lets comment this and run it will work
- // Below code snippets will work
- // this cast into exact class and call the same function
- sb.append("((test5.JIRA242$BooleanDataSeries)BOOL_SERIES).setValue(3>=3);");
- // this code snippet will set exact boolean variable to the function.
- sb.append("boolean var = 3>=3;");
- sb.append("BOOL_SERIES.setValue(var);");
-
- m.insertBefore(sb.toString());
- cc.writeFile();
- Object obj = make(cc.getName());
- assertEquals(0, invoke(obj, "say"));
- }
-
- public void testJIRA249() throws Exception {
- CtClass cc = sloader.get("test5.BoolTest");
- CtMethod testMethod = cc.getDeclaredMethod("test");
- testMethod.insertBefore("i = foo(true & true);");
- cc.writeFile();
- Object obj = make(cc.getName());
- assertEquals(1, invoke(obj, "run"));
- }
-
- public void testInnerClassAttributeRemove() throws Exception {
- CtClass cc = sloader.get("test5.InnerClassRemove");
- ClassFile cf = cc.getClassFile();
- InnerClassesAttribute ica = (InnerClassesAttribute)cf.getAttribute(InnerClassesAttribute.tag);
- String second = ica.innerClass(1);
- String secondName = ica.innerName(1);
- String third = ica.innerClass(2);
- String thirdName = ica.innerName(2);
- assertEquals(3, ica.remove(3));
- assertEquals(2, ica.remove(0));
- assertEquals(second, ica.innerClass(0));
- assertEquals(secondName, ica.innerName(0));
- assertEquals(third, ica.innerClass(1));
- assertEquals(thirdName, ica.innerName(1));
- assertEquals(1, ica.remove(1));
- assertEquals(second, ica.innerClass(0));
- assertEquals(secondName, ica.innerName(0));
- cc.writeFile();
- Object obj = make(cc.getName());
- assertEquals(1, invoke(obj, "run"));
- }
-
- public void testJIRA248() throws Exception {
- CtClass cc = sloader.get("test5.JIRA248");
- String methodBody = "public int run() { return foo() + super.foo() + super.bar() + test5.JIRA248Intf2.super.baz(); }";
- CtMethod ctMethod = CtMethod.make(methodBody, cc);
- cc.addMethod(ctMethod);
- cc.writeFile();
- Object obj = make(cc.getName());
- assertEquals(40271, invoke(obj, "run"));
- }
-
- public void testInvalidCastWithDollar() throws Exception {
- String code = "{ new test5.JavassistInvalidCastTest().inspectReturn((Object) ($w) $_); } ";
- CtClass c = sloader.get("test5.InvalidCastDollar");
- for (CtMethod method : c.getDeclaredMethods())
- method.insertAfter(code);
- }
-
- public void testJIRA256() throws Exception {
- // CtClass ec = sloader.get("test5.Entity");
-
- CtClass cc = sloader.makeClass("test5.JIRA256");
- ClassFile ccFile = cc.getClassFile();
- ConstPool constpool = ccFile.getConstPool();
-
- AnnotationsAttribute attr = new AnnotationsAttribute(constpool, AnnotationsAttribute.visibleTag);
- javassist.bytecode.annotation.Annotation entityAnno
- = new javassist.bytecode.annotation.Annotation("test5.Entity", constpool);
- // = new javassist.bytecode.annotation.Annotation(constpool, ec);
-
- entityAnno.addMemberValue("value", new javassist.bytecode.annotation.ArrayMemberValue(constpool));
- attr.addAnnotation(entityAnno);
- ccFile.addAttribute(attr);
-
- cc.writeFile();
- Object o = make(cc.getName());
- assertTrue(o.getClass().getName().equals("test5.JIRA256"));
-
- java.lang.annotation.Annotation[] annotations = o.getClass().getDeclaredAnnotations();
- assertEquals(1, annotations.length);
- }
-
- public void testJIRA250() throws Exception {
- CtClass cc = sloader.makeClass("test5.JIRA250", sloader.get("test5.JIRA250Super"));
- cc.addMethod(CtNewMethod.make(
- " public test5.JIRA250Bar getBar() {" +
- " return super.getBar();\n" +
- " }\n", cc));
- cc.addMethod(CtNewMethod.make("public int run() { getBar(); return 1; }", cc));
- cc.writeFile();
- Object obj = make(cc.getName());
- assertEquals(1, invoke(obj, "run"));
- }
-
- public void testProceedToDefaultMethod() throws Exception {
- CtClass cc = ClassPool.getDefault().get("test5.ProceedDefault");
- CtMethod mth = cc.getDeclaredMethod("bar");
- mth.instrument(new ExprEditor() {
- public void edit(MethodCall c) throws CannotCompileException {
- c.replace("$_ = $proceed($$) + 10000;");
- }
- });
- cc.writeFile();
- Object obj = make(cc.getName());
- assertEquals(21713, invoke(obj, "run"));
- }
-
- public void testBadClass() throws Exception {
- CtClass badClass = ClassPool.getDefault().makeClass("badClass");
- String src = String.join(System.getProperty("line.separator"),
- "public void eval () {",
- " if (true) {",
- " double t=0;",
- " } else {",
- " double t=0;",
- " }",
- " for (int i=0; i < 2; i++) {",
- " int a=0;",
- " int b=0;",
- " int c=0;",
- " int d=0;",
- " if (true) {",
- " int e = 0;",
- " }",
- " }",
- "}");
- System.out.println(src);
- badClass.addMethod(CtMethod.make(src, badClass));
- Class clazzz = badClass.toClass();
- Object obj = clazzz.getConstructor().newInstance(); // <-- falls here
- }
-
- public void test83StackmapWithArrayType() throws Exception {
- final CtClass ctClass = sloader.get("test5.StackmapWithArray83");
- final CtMethod method = ctClass.getDeclaredMethod("bytecodeVerifyError");
- method.addLocalVariable("test_localVariable", CtClass.intType);
- method.insertBefore("{ test_localVariable = 1; }");
-
- final CtMethod method2 = ctClass.getDeclaredMethod("bytecodeVerifyError2");
- method2.addLocalVariable("test_localVariable", CtClass.intType);
- method2.insertBefore("{ test_localVariable = 1; }");
-
- ctClass.writeFile();
- Object obj = make(ctClass.getName());
- assertEquals(1, invoke(obj, "run"));
- }
-
- public void testLoaderClassPath() throws Exception {
- ClassPool cp = new ClassPool();
- cp.appendClassPath(new LoaderClassPath(new Loader()));
- assertNotNull(cp.get(Object.class.getName()));
- assertNotNull(cp.get(this.getClass().getName()));
-
- public void testAddDefaultMethod() throws Exception {
- CtClass cc = sloader.makeInterface("test5.AddDefaultMethod");
- cc.addMethod(CtNewMethod.make("static int foo() { return 1; }", cc));
- cc.addMethod(CtNewMethod.make("public static int foo1() { return 1; }", cc));
- cc.addMethod(CtNewMethod.make("public int foo2() { return 1; }", cc));
- cc.addMethod(CtNewMethod.make("int foo3() { return 1; }", cc));
- try {
- cc.addMethod(CtNewMethod.make("private int foo4() { return 1; }", cc));
- fail();
- } catch (CannotCompileException e) {}
- try {
- cc.addMethod(CtNewMethod.make("private static int foo5() { return 1; }", cc));
- fail();
- } catch (CannotCompileException e) {}
- }
-
- public void testRemoveAnnotatino() throws Exception {
- CtClass cc = sloader.get("test5.RemoveAnnotation");
- AnnotationsAttribute aa
- = (AnnotationsAttribute)cc.getClassFile().getAttribute(AnnotationsAttribute.invisibleTag);
- assertTrue(aa.removeAnnotation("test5.RemoveAnno1"));
- AttributeInfo ai = cc.getClassFile().removeAttribute(AnnotationsAttribute.invisibleTag);
- assertEquals(ai.getName(), AnnotationsAttribute.invisibleTag);
-
- CtMethod foo = cc.getDeclaredMethod("foo");
- AnnotationsAttribute aa2 = (AnnotationsAttribute)foo.getMethodInfo().getAttribute(AnnotationsAttribute.invisibleTag);
- assertTrue(aa2.removeAnnotation("test5.RemoveAnno1"));
-
- CtMethod bar = cc.getDeclaredMethod("bar");
- AnnotationsAttribute aa3 = (AnnotationsAttribute)bar.getMethodInfo().getAttribute(AnnotationsAttribute.invisibleTag);
- assertFalse(aa3.removeAnnotation("test5.RemoveAnno1"));
- assertTrue(aa3.removeAnnotation("test5.RemoveAnno2"));
- AttributeInfo ai2 = bar.getMethodInfo().removeAttribute(AnnotationsAttribute.invisibleTag);
- assertEquals(ai2.getName(), AnnotationsAttribute.invisibleTag);
-
- CtMethod run = cc.getDeclaredMethod("run");
- AttributeInfo ai3 = run.getMethodInfo().removeAttribute(AnnotationsAttribute.invisibleTag);
- assertNull(ai3);
-
- CtField baz = cc.getDeclaredField("baz");
- AttributeInfo ai4 = baz.getFieldInfo().removeAttribute(AnnotationsAttribute.invisibleTag);
- assertEquals(ai4.getName(), AnnotationsAttribute.invisibleTag);
-
- cc.writeFile();
- Object obj = make(cc.getName());
- assertEquals(3, invoke(obj, "run"));
- }
- }
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