2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
6 * The Java Pathfinder core (jpf-core) platform is licensed under the
7 * Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0.
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 package gov.nasa.jpf.vm;
20 import gov.nasa.jpf.Config;
21 import gov.nasa.jpf.annotation.MJI;
22 import gov.nasa.jpf.util.MethodInfoRegistry;
23 import gov.nasa.jpf.util.RunListener;
24 import gov.nasa.jpf.util.RunRegistry;
26 import java.lang.reflect.Method;
27 import java.lang.reflect.Modifier;
28 import java.util.ArrayList;
30 public class JPF_java_lang_reflect_Method extends NativePeer {
32 static MethodInfoRegistry registry;
34 // class init - this is called automatically from the NativePeer ctor
35 public static boolean init (Config conf) {
36 // this is an example of how to handle cross-initialization between
37 // native peers - this might also get explicitly called by the java.lang.Class
38 // peer, since it creates Method objects. Here we have to make sure
39 // we only reset between JPF runs
41 if (registry == null){
42 registry = new MethodInfoRegistry();
44 RunRegistry.getDefaultRegistry().addListener( new RunListener() {
46 public void reset (RunRegistry reg){
54 static int createMethodObject (MJIEnv env, ClassInfo ciMth, MethodInfo mi){
55 // note - it is the callers responsibility to ensure Method is properly initialized
56 int regIdx = registry.registerMethodInfo(mi);
57 int eidx = env.newObject( ciMth);
58 ElementInfo ei = env.getModifiableElementInfo(eidx);
60 ei.setIntField("regIdx", regIdx);
61 ei.setBooleanField("isAccessible", mi.isPublic());
66 // this is NOT an MJI method, but it is used outside this package, so
67 // we have to add 'final'
68 public static final MethodInfo getMethodInfo (MJIEnv env, int objRef){
69 return registry.getMethodInfo(env,objRef, "regIdx");
73 public int getName____Ljava_lang_String_2 (MJIEnv env, int objRef) {
74 MethodInfo mi = getMethodInfo(env, objRef);
76 int nameRef = env.getReferenceField( objRef, "name");
77 if (nameRef == MJIEnv.NULL) {
78 nameRef = env.newString(mi.getName());
79 env.setReferenceField(objRef, "name", nameRef);
86 public int getModifiers____I (MJIEnv env, int objRef){
87 MethodInfo mi = getMethodInfo(env, objRef);
88 return mi.getModifiers();
91 static int getParameterTypes( MJIEnv env, MethodInfo mi) {
92 ThreadInfo ti = env.getThreadInfo();
93 String[] argTypeNames = mi.getArgumentTypeNames();
94 int[] ar = new int[argTypeNames.length];
96 for (int i = 0; i < argTypeNames.length; i++) {
97 ClassInfo ci = ClassLoaderInfo.getCurrentResolvedClassInfo(argTypeNames[i]);
98 if (!ci.isRegistered()) {
102 ar[i] = ci.getClassObjectRef();
105 int aRef = env.newObjectArray("Ljava/lang/Class;", argTypeNames.length);
106 for (int i = 0; i < argTypeNames.length; i++) {
107 env.setReferenceArrayElement(aRef, i, ar[i]);
114 public int getParameterTypes_____3Ljava_lang_Class_2 (MJIEnv env, int objRef){
115 return getParameterTypes(env, getMethodInfo(env, objRef));
118 // TODO: Fix for Groovy's model-checking
119 private static int getParameterizedTypeImplObj(String signature, MJIEnv env, int objRef, MethodInfo mi) {
121 ThreadInfo ti = env.getThreadInfo();
122 ClassLoaderInfo cli = env.getSystemClassLoaderInfo();
123 ClassInfo ci = cli.getResolvedClassInfo("sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl");
124 // Create a new object of type ParameterizedTypeImpl
125 int paramTypeRef = env.newObject(ci);
126 ElementInfo ei = env.getModifiableElementInfo(paramTypeRef);
127 // Get field information and fill out the fields
129 String className = Types.getGenericClassName(signature);
130 ClassInfo gci = cli.getResolvedClassInfo(className);
131 if (!gci.isRegistered()) {
132 gci.registerClass(ti);
134 ei.setReferenceField("rawType", gci.getClassObjectRef());
136 // actualTypeArguments
137 String[] parameterizedTypes = Types.getParameterizedTypes(signature);
138 int[] types = new int[parameterizedTypes.length];
139 String classGenericSig = mi.getClassInfo().getGenericSignature();
140 String methodGenericSig = mi.getGenericSignature();
141 for(int j = 0; j < parameterizedTypes.length; j++) {
142 if (Types.isTypeParameter(parameterizedTypes[j], methodGenericSig) ||
143 Types.isTypeParameter(parameterizedTypes[j], classGenericSig)) {
144 types[j] = getTypeVariableImplObject(env, objRef, parameterizedTypes[j]);
145 } else if (Types.isWildcardType(parameterizedTypes[j])) {
146 types[j] = getWildcardTypeImplObject(env, objRef, parameterizedTypes[j]);
148 ClassInfo pci = cli.getResolvedClassInfo(parameterizedTypes[j]);
149 if (!pci.isRegistered()) {
150 pci.registerClass(ti);
152 types[j] = pci.getClassObjectRef();
155 int aRef = env.newObjectArray("Ljava/lang/reflect/Type;", parameterizedTypes.length);
156 // Set references for every array element
157 for (int j = 0; j < parameterizedTypes.length; j++) {
158 env.setReferenceArrayElement(aRef, j, types[j]);
160 ei.setReferenceField("actualTypeArguments", aRef);
163 String ownerType = Types.getOwnerClassName(signature);
164 if (ownerType != null) {
165 ClassInfo oci = ClassLoaderInfo.getCurrentResolvedClassInfo(ownerType);
166 if (!oci.isRegistered()) {
167 oci.registerClass(ti);
169 ei.setReferenceField("ownerType", oci.getClassObjectRef());
171 ei.setReferenceField("ownerType", MJIEnv.NULL);
177 private static int getWildcardTypeImplObject(MJIEnv env, int objRef, String wildcardType) {
178 ThreadInfo ti = env.getThreadInfo();
179 ClassLoaderInfo cli = env.getSystemClassLoaderInfo();
180 ClassInfo ci = cli.getResolvedClassInfo("sun.reflect.generics.reflectiveObjects.WildcardTypeImpl");
182 int wildcardRef = env.newObject(ci);
183 ElementInfo ei = env.getModifiableElementInfo(wildcardRef);
184 String actualType = Types.getWildcardType(wildcardType);
185 ClassInfo uci = cli.getResolvedClassInfo(actualType);
186 if (!uci.isRegistered()) {
187 uci.registerClass(ti);
189 int uRef = MJIEnv.NULL;
190 int lRef = MJIEnv.NULL;
191 if (wildcardType.startsWith("+L") || wildcardType.equals("*")) {
193 uRef = env.newObjectArray("Ljava/lang/reflect/Type;", 1);
194 env.setReferenceArrayElement(uRef, 0, uci.getClassObjectRef());
195 lRef = env.newObjectArray("Ljava/lang/reflect/Type;", 0);
196 } else { // wildcardType.startsWith("-L")
198 lRef = env.newObjectArray("Ljava/lang/reflect/Type;", 1);
199 env.setReferenceArrayElement(lRef, 0, uci.getClassObjectRef());
201 ei.setReferenceField("upperBounds", uRef);
202 ei.setReferenceField("lowerBounds", lRef);
207 private static int getTypeVariableImplObject(MJIEnv env, int objRef, String parameterizedType) {
209 ClassLoaderInfo cli = env.getSystemClassLoaderInfo();
210 ClassInfo ci = cli.getResolvedClassInfo("sun.reflect.generics.reflectiveObjects.TypeVariableImpl");
212 int typeVarRef = env.newObject(ci);
213 ElementInfo ei = env.getModifiableElementInfo(typeVarRef);
214 // genericDeclaration contains this java.lang.reflect.Method object
215 ei.setReferenceField("genericDeclaration", objRef);
216 ei.setReferenceField("name", env.newString(parameterizedType));
221 static int getGenericParameterTypes( MJIEnv env, int objRef, MethodInfo mi) {
222 ThreadInfo ti = env.getThreadInfo();
223 String[] argTypeNames = mi.getArgumentGenericTypeNames();
224 int[] ar = new int[argTypeNames.length];
226 for (int i = 0; i < argTypeNames.length; i++) {
227 // Change this into just the generic class type if it is a generic class
228 if (Types.isGenericSignature(argTypeNames[i])) {
229 ar[i] = getParameterizedTypeImplObj(argTypeNames[i], env, objRef, mi);
231 ClassInfo ci = ClassLoaderInfo.getCurrentResolvedClassInfo(argTypeNames[i]);
232 if (!ci.isRegistered()) {
233 ci.registerClass(ti);
235 ar[i] = ci.getClassObjectRef();
238 int aRef = env.newObjectArray("Ljava/lang/reflect/Type;", argTypeNames.length);
239 for (int i = 0; i < argTypeNames.length; i++) {
240 env.setReferenceArrayElement(aRef, i, ar[i]);
247 public int getGenericParameterTypes_____3Ljava_lang_reflect_Type_2 (MJIEnv env, int objRef){
248 return getGenericParameterTypes(env, objRef, getMethodInfo(env, objRef));
252 public int getGenericReturnType____Ljava_lang_reflect_Type_2 (MJIEnv env, int objRef){
253 MethodInfo mi = getMethodInfo(env, objRef);
254 ThreadInfo ti = env.getThreadInfo();
257 if (Types.isGenericSignature(mi.getGenericReturnTypeName())) {
258 retRef = getParameterizedTypeImplObj(mi.getGenericReturnTypeName(), env, objRef, mi);
260 ClassInfo ci = ClassLoaderInfo.getCurrentResolvedClassInfo(mi.getReturnTypeName());
261 if (!ci.isRegistered()) {
262 ci.registerClass(ti);
264 retRef = ci.getClassObjectRef();
269 // TODO: Fix for Groovy's model-checking
270 // TODO: We have been able to only register the generic class and not yet the parameterized types
272 int getExceptionTypes(MJIEnv env, MethodInfo mi) {
273 ThreadInfo ti = env.getThreadInfo();
274 String[] exceptionNames = mi.getThrownExceptionClassNames();
276 if (exceptionNames == null) {
277 exceptionNames = new String[0];
280 int[] ar = new int[exceptionNames.length];
282 for (int i = 0; i < exceptionNames.length; i++) {
283 ClassInfo ci = ClassLoaderInfo.getCurrentResolvedClassInfo(exceptionNames[i]);
284 if (!ci.isRegistered()) {
285 ci.registerClass(ti);
288 ar[i] = ci.getClassObjectRef();
291 int aRef = env.newObjectArray("Ljava/lang/Class;", exceptionNames.length);
292 for (int i = 0; i < exceptionNames.length; i++) {
293 env.setReferenceArrayElement(aRef, i, ar[i]);
300 public int getExceptionTypes_____3Ljava_lang_Class_2 (MJIEnv env, int objRef) {
301 return getExceptionTypes(env, getMethodInfo(env, objRef));
305 public int getDefaultValue____Ljava_lang_Object_2(MJIEnv env, int objRef) {
306 MethodInfo mi = getMethodInfo(env, objRef);
307 ClassInfo ci = mi.getClassInfo();
308 if(!ci.isInterface() || ci.getDirectInterfaceNames() == null || ci.getDirectInterfaceNames().length != 1 || !ci.getDirectInterfaceNames()[0].equals("java.lang.annotation.Annotation")) {
311 String annotationName = ci.getName();
312 AnnotationInfo ai = ci.getClassLoaderInfo().getResolvedAnnotationInfo(annotationName);
313 Object o = ai.getValue(mi.getName());
318 return env.liftNativeAnnotationValue(Types.getTypeName(mi.getReturnType()), o);
319 } catch(ClinitRequired e) {
320 env.handleClinitRequest(e.getRequiredClassInfo());
326 public int getReturnType____Ljava_lang_Class_2 (MJIEnv env, int objRef){
327 MethodInfo mi = getMethodInfo(env, objRef);
328 ThreadInfo ti = env.getThreadInfo();
330 ClassInfo ci = ClassLoaderInfo.getCurrentResolvedClassInfo(mi.getReturnTypeName());
331 if (!ci.isRegistered()) {
332 ci.registerClass(ti);
335 return ci.getClassObjectRef();
339 public int getDeclaringClass____Ljava_lang_Class_2 (MJIEnv env, int objRef){
340 MethodInfo mi = getMethodInfo(env, objRef);
341 ClassInfo ci = mi.getClassInfo();
342 // it's got to be registered, otherwise we wouldn't be able to acquire the Method object
343 return ci.getClassObjectRef();
346 static int createBoxedReturnValueObject (MJIEnv env, MethodInfo mi, DirectCallStackFrame frame) {
347 byte rt = mi.getReturnTypeCode();
348 int ret = MJIEnv.NULL;
352 if (rt == Types.T_DOUBLE) {
353 attr = frame.getLongResultAttr();
354 double v = frame.getDoubleResult();
355 ret = env.newObject(ClassLoaderInfo.getSystemResolvedClassInfo("java.lang.Double"));
356 rei = env.getModifiableElementInfo(ret);
357 rei.setDoubleField("value", v);
358 } else if (rt == Types.T_FLOAT) {
359 attr = frame.getResultAttr();
360 float v = frame.getFloatResult();
361 ret = env.newObject(ClassLoaderInfo.getSystemResolvedClassInfo("java.lang.Float"));
362 rei = env.getModifiableElementInfo(ret);
363 rei.setFloatField("value", v);
364 } else if (rt == Types.T_LONG) {
365 attr = frame.getLongResultAttr();
366 long v = frame.getLongResult();
367 ret = env.valueOfLong(v);
368 } else if (rt == Types.T_BYTE) {
369 attr = frame.getResultAttr();
370 int v = frame.getResult();
371 ret = env.valueOfByte((byte)v);
372 } else if (rt == Types.T_CHAR) {
373 attr = frame.getResultAttr();
374 int v = frame.getResult();
375 ret = env.valueOfCharacter((char)v);
376 } else if (rt == Types.T_SHORT) {
377 attr = frame.getResultAttr();
378 int v = frame.getResult();
379 ret = env.valueOfShort((short)v);
380 } else if (rt == Types.T_INT) {
381 attr = frame.getResultAttr();
382 int v = frame.getResult();
383 ret = env.valueOfInteger(v);
384 } else if (rt == Types.T_BOOLEAN) {
385 attr = frame.getResultAttr();
386 int v = frame.getResult();
387 ret = env.valueOfBoolean((v == 1)? true: false);
388 } else if (mi.isReferenceReturnType()){
389 attr = frame.getResultAttr();
390 ret = frame.getReferenceResult();
393 env.setReturnAttribute(attr);
397 static boolean pushUnboxedArguments (MJIEnv env, MethodInfo mi, DirectCallStackFrame frame, int argIdx, int argsRef) {
399 ClassInfo sourceClass;
400 String destTypeNames[];
401 int nArgs, passedCount, sourceRef;
402 byte sourceType, destTypes[];
404 destTypes = mi.getArgumentTypes();
405 destTypeNames = mi.getArgumentTypeNames();
406 nArgs = destTypeNames.length;
408 // according to the API docs, passing null instead of an empty array is allowed for no args
409 passedCount = (argsRef != MJIEnv.NULL) ? env.getArrayLength(argsRef) : 0;
411 if (nArgs != passedCount) {
412 env.throwException(IllegalArgumentException.class.getName(), "Wrong number of arguments passed. Actual = " + passedCount + ". Expected = " + nArgs);
416 for (int i = 0; i < nArgs; i++) {
417 sourceRef = env.getReferenceArrayElement(argsRef, i);
419 // we have to handle null references explicitly
420 if (sourceRef == MJIEnv.NULL) {
421 if ((destTypes[i] != Types.T_REFERENCE) && (destTypes[i] != Types.T_ARRAY)) {
422 env.throwException(IllegalArgumentException.class.getName(), "Wrong argument type at index " + i + ". Actual = (null). Expected = " + destTypeNames[i]);
426 frame.pushRef(MJIEnv.NULL);
430 source = env.getElementInfo(sourceRef);
431 sourceClass = source.getClassInfo();
432 sourceType = getSourceType( sourceClass, destTypes[i], destTypeNames[i]);
434 Object attr = env.getElementInfo(argsRef).getFields().getFieldAttr(i);
435 if ((argIdx = pushArg( argIdx, frame, source, sourceType, destTypes[i], attr)) < 0 ){
436 env.throwException(IllegalArgumentException.class.getName(), "Wrong argument type at index " + i + ". Source Class = " + sourceClass.getName() + ". Dest Class = " + destTypeNames[i]);
444 // this returns the primitive type in case we have to unbox, and otherwise checks reference type compatibility
445 private static byte getSourceType (ClassInfo ciArgVal, byte destType, String destTypeName){
448 case Types.T_BOOLEAN:
456 return Types.getUnboxedType(ciArgVal.getName());
459 case Types.T_REFERENCE: // check if the source type is assignment compatible with the destType
460 if (ciArgVal.isInstanceOf(destTypeName)){
468 // do the proper type conversion - Java is pretty forgiving here and does
469 // not throw exceptions upon value truncation
470 private static int pushArg( int argIdx, DirectCallStackFrame frame, ElementInfo eiArg, byte srcType, byte destType, Object attr){
474 double v = eiArg.getDoubleField("value");
475 if (destType == Types.T_DOUBLE){
476 return frame.setDoubleArgument( argIdx, v, attr);
480 case Types.T_FLOAT: // covers float, double
482 float v = eiArg.getFloatField("value");
485 return frame.setFloatArgument( argIdx, v, attr);
487 return frame.setDoubleArgument( argIdx, v, attr);
493 long v = eiArg.getLongField("value");
496 return frame.setLongArgument(argIdx, v, attr);
498 return frame.setFloatArgument(argIdx, v, attr);
500 return frame.setDoubleArgument( argIdx, v, attr);
506 int v = eiArg.getIntField("value");
509 return frame.setArgument( argIdx, v, attr);
511 return frame.setLongArgument( argIdx, v, attr);
513 return frame.setFloatArgument(argIdx, v, attr);
515 return frame.setDoubleArgument( argIdx, v, attr);
521 int v = eiArg.getShortField("value");
525 return frame.setArgument( argIdx, v, attr);
527 return frame.setLongArgument( argIdx, v, attr);
529 return frame.setFloatArgument(argIdx, v, attr);
531 return frame.setDoubleArgument( argIdx, v, attr);
537 byte v = eiArg.getByteField("value");
542 return frame.setArgument( argIdx, v, attr);
544 return frame.setLongArgument( argIdx, v, attr);
546 return frame.setFloatArgument(argIdx, v, attr);
548 return frame.setDoubleArgument( argIdx, v, attr);
554 char v = eiArg.getCharField("value");
558 return frame.setArgument( argIdx, v, attr);
560 return frame.setLongArgument( argIdx, v, attr);
562 return frame.setFloatArgument(argIdx, v, attr);
564 return frame.setDoubleArgument( argIdx, v, attr);
568 case Types.T_BOOLEAN:
570 boolean v = eiArg.getBooleanField("value");
571 if (destType == Types.T_BOOLEAN){
572 return frame.setArgument( argIdx, v ? 1 : 0, attr);
578 int ref = eiArg.getObjectRef();
579 if (destType == Types.T_ARRAY){
580 return frame.setReferenceArgument( argIdx, ref, attr);
584 case Types.T_REFERENCE:
586 int ref = eiArg.getObjectRef();
587 if (destType == Types.T_REFERENCE){
588 return frame.setReferenceArgument( argIdx, ref, attr);
599 public int invoke__Ljava_lang_Object_2_3Ljava_lang_Object_2__Ljava_lang_Object_2 (MJIEnv env, int mthRef, int objRef, int argsRef) {
600 ThreadInfo ti = env.getThreadInfo();
601 MethodInfo miCallee = getMethodInfo(env, mthRef);
602 ClassInfo calleeClass = miCallee.getClassInfo();
603 DirectCallStackFrame frame = ti.getReturnedDirectCall();
605 if (frame == null){ // first time
607 //--- check the instance we are calling on
608 if (!miCallee.isStatic()) {
609 if (objRef == MJIEnv.NULL){
610 env.throwException("java.lang.NullPointerException");
614 ElementInfo eiObj = ti.getElementInfo(objRef);
615 ClassInfo objClass = eiObj.getClassInfo();
617 if (!objClass.isInstanceOf(calleeClass)) {
618 env.throwException(IllegalArgumentException.class.getName(), "Object is not an instance of declaring class. Actual = " + objClass + ". Expected = " + calleeClass);
624 //--- check accessibility
625 ElementInfo eiMth = ti.getElementInfo(mthRef);
626 if (! (Boolean) eiMth.getFieldValueObject("isAccessible")) {
627 StackFrame caller = ti.getTopFrame().getPrevious();
628 ClassInfo callerClass = caller.getClassInfo();
630 if (callerClass != calleeClass) {
631 env.throwException(IllegalAccessException.class.getName(), "Class " + callerClass.getName() +
632 " can not access a member of class " + calleeClass.getName()
633 + " with modifiers \"" + Modifier.toString(miCallee.getModifiers()));
638 //--- push the direct call
639 frame = miCallee.createDirectCallStackFrame(ti, 0);
640 frame.setReflection();
643 if (!miCallee.isStatic()) {
644 frame.setReferenceArgument( argOffset++, objRef, null);
646 if (!pushUnboxedArguments( env, miCallee, frame, argOffset, argsRef)) {
647 // we've got a IllegalArgumentException
653 //--- check for and push required clinits
654 if (miCallee.isStatic()){
655 calleeClass.initializeClass(ti);
658 return MJIEnv.NULL; // reexecute
660 } else { // we have returned from the direct call
661 return createBoxedReturnValueObject( env, miCallee, frame);
666 // this one has to collect annotations upwards in the inheritance chain
667 static int getAnnotations (MJIEnv env, MethodInfo mi){
668 String mname = mi.getName();
669 String msig = mi.genericSignature;
670 ArrayList<AnnotationInfo> aiList = new ArrayList<AnnotationInfo>();
672 // our own annotations
673 ClassInfo ci = mi.getClassInfo();
674 for (AnnotationInfo ai : mi.getAnnotations()) {
678 // our superclass annotations
679 for (ci = ci.getSuperClass(); ci != null; ci = ci.getSuperClass()){
680 mi = ci.getMethod(mname, msig, false);
682 for (AnnotationInfo ai: mi.getAnnotations()){
689 return env.newAnnotationProxies(aiList.toArray(new AnnotationInfo[aiList.size()]));
690 } catch (ClinitRequired x){
691 env.handleClinitRequest(x.getRequiredClassInfo());
697 public int getAnnotations_____3Ljava_lang_annotation_Annotation_2 (MJIEnv env, int mthRef){
698 return getAnnotations( env, getMethodInfo(env,mthRef));
701 // the following ones consist of a package default implementation that is shared with
702 // the constructor peer, and a public model method
703 static int getAnnotation (MJIEnv env, MethodInfo mi, int annotationClsRef){
704 ClassInfo aci = env.getReferredClassInfo(annotationClsRef);
706 AnnotationInfo ai = mi.getAnnotation(aci.getName());
708 ClassInfo aciProxy = aci.getAnnotationProxy();
710 return env.newAnnotationProxy(aciProxy, ai);
711 } catch (ClinitRequired x){
712 env.handleClinitRequest(x.getRequiredClassInfo());
721 public int getAnnotation__Ljava_lang_Class_2__Ljava_lang_annotation_Annotation_2 (MJIEnv env, int mthRef, int annotationClsRef) {
722 return getAnnotation(env, getMethodInfo(env,mthRef), annotationClsRef);
725 static int getDeclaredAnnotations (MJIEnv env, MethodInfo mi){
726 AnnotationInfo[] ai = mi.getAnnotations();
729 return env.newAnnotationProxies(ai);
730 } catch (ClinitRequired x){
731 env.handleClinitRequest(x.getRequiredClassInfo());
737 public int getDeclaredAnnotations_____3Ljava_lang_annotation_Annotation_2 (MJIEnv env, int mthRef){
738 return getDeclaredAnnotations( env, getMethodInfo(env,mthRef));
741 static int getParameterAnnotations (MJIEnv env, MethodInfo mi){
742 AnnotationInfo[][] pa = mi.getParameterAnnotations();
743 // this should always return an array object, even if the method has no arguments
746 int paRef = env.newObjectArray("[Ljava/lang/annotation/Annotation;", pa.length);
748 for (int i=0; i<pa.length; i++){
749 int eRef = env.newAnnotationProxies(pa[i]);
750 env.setReferenceArrayElement(paRef, i, eRef);
755 } catch (ClinitRequired x){ // be prepared that we might have to initialize respective annotation classes
756 env.handleClinitRequest(x.getRequiredClassInfo());
762 public int getParameterAnnotations_____3_3Ljava_lang_annotation_Annotation_2 (MJIEnv env, int mthRef){
763 return getParameterAnnotations( env, getMethodInfo(env,mthRef));
767 public int toString____Ljava_lang_String_2 (MJIEnv env, int objRef){
768 StringBuilder sb = new StringBuilder();
770 MethodInfo mi = getMethodInfo(env, objRef);
772 sb.append(Modifier.toString(mi.getModifiers()));
775 sb.append(mi.getReturnTypeName());
778 sb.append(mi.getClassName());
781 sb.append(mi.getName());
785 String[] at = mi.getArgumentTypeNames();
786 for (int i=0; i<at.length; i++){
787 if (i>0) sb.append(',');
793 int sref = env.newString(sb.toString());
798 public boolean equals__Ljava_lang_Object_2__Z (MJIEnv env, int objRef, int mthRef){
799 ElementInfo ei = env.getElementInfo(mthRef);
800 ClassInfo ci = ClassLoaderInfo.getSystemResolvedClassInfo(JPF_java_lang_Class.METHOD_CLASSNAME);
802 if (ei.getClassInfo() == ci){
803 MethodInfo mi1 = getMethodInfo(env, objRef);
804 MethodInfo mi2 = getMethodInfo(env, mthRef);
805 if (mi1.getClassInfo() == mi2.getClassInfo()){
806 if (mi1.getName().equals(mi2.getName())){
807 if (mi1.getReturnType().equals(mi2.getReturnType())){
808 byte[] params1 = mi1.getArgumentTypes();
809 byte[] params2 = mi2.getArgumentTypes();
810 if (params1.length == params2.length){
811 for (int i = 0; i < params1.length; i++){
812 if (params1[i] != params2[i]){
826 public int hashCode____I (MJIEnv env, int objRef){
827 MethodInfo mi = getMethodInfo(env, objRef);
828 return mi.getClassName().hashCode() ^ mi.getName().hashCode();