Merge pull request ballerina-platform#41454 from gabilang/fix-abst-st…

…at-interop

Provide proper compilation errors for invalid interop usages

compiler/ballerina-lang/src/main/java/org/wso2/ballerinalang/compiler/bir/codegen/interop/JMethodResolver.java

@@ -117,11 +117,11 @@ JMethod resolve(JMethodRequest jMethodRequest) {
         if (jMethods.isEmpty()) {
             if (jMethodRequest.kind == JMethodKind.CONSTRUCTOR) {
                 throw new JInteropException(DiagnosticErrorCode.CONSTRUCTOR_NOT_FOUND,
-                        "No such public constructor found in class '" + jMethodRequest.declaringClass + "'");
+                        "No such public constructor found in class '" + jMethodRequest.declaringClass.getName() + "'");
             } else {
                 throw new JInteropException(DiagnosticErrorCode.METHOD_NOT_FOUND,
                         "No such public method '" + jMethodRequest.methodName + "' found in class '" +
-                                jMethodRequest.declaringClass + "'");
+                                jMethodRequest.declaringClass.getName() + "'");
             }
         }
 
@@ -399,15 +399,8 @@ private void validateArgumentTypes(JMethodRequest jMethodRequest, JMethod jMetho
                 receiverIndex = jMethodRequest.pathParamCount;
             }
             BType receiverType = bParamTypes[receiverIndex];
-            boolean isLastParam = (bParamTypes.length - jMethodRequest.pathParamCount) == 1;
-            if (!isValidParamBType(jMethodRequest.declaringClass, receiverType, isLastParam,
-                    jMethodRequest.restParamExist)) {
-                if (jParamTypes.length == 0 || bParamTypes[0].tag != TypeTags.HANDLE) {
-                    throwMethodNotFoundError(jMethodRequest);
-                } else {
-                    throwNoSuchMethodError(jMethodRequest.methodName, jParamTypes[0], receiverType,
-                            jMethodRequest.declaringClass);
-                }
+            if (receiverType.tag != TypeTags.HANDLE) {
+                throwMethodNotFoundError(jMethodRequest);
             }
             for (int k = receiverIndex; k < bParamTypes.length - 1; k++) {
                 bParamTypes[k] = bParamTypes[k + 1];
@@ -854,12 +847,12 @@ private JMethod resolveMatchingMethod(JMethodRequest jMethodRequest, List<JMetho
             if (jMethodRequest.kind == JMethodKind.CONSTRUCTOR) {
                 throw new JInteropException(DiagnosticErrorCode.CONSTRUCTOR_NOT_FOUND,
                         "No such public constructor that matches with parameter types '" + paramTypesSig +
-                                "' found in class '" + jMethodRequest.declaringClass + "'");
+                                "' found in class '" + jMethodRequest.declaringClass.getName() + "'");
             } else {
                 throw new JInteropException(DiagnosticErrorCode.METHOD_NOT_FOUND,
                         "No such public method '" + jMethodRequest.methodName + "' that matches with parameter types " +
-                                "'" +
-                                paramTypesSig + "' found in class '" + jMethodRequest.declaringClass + "'");
+                                "'" + paramTypesSig + "' found in class '" + jMethodRequest.declaringClass.getName() +
+                                "'");
             }
         } else if (resolvedJMethods.size() > 1) {
             if (jMethodRequest.kind == JMethodKind.CONSTRUCTOR) {
@@ -983,18 +976,18 @@ private void throwMethodNotFoundError(JMethodRequest jMethodRequest) throws JInt
         if (jMethodRequest.kind == JMethodKind.CONSTRUCTOR) {
             throw new JInteropException(DiagnosticErrorCode.CONSTRUCTOR_NOT_FOUND,
                     "No such public constructor with '" + jMethodRequest.bFuncParamCount +
-                            "' parameter(s) found in class '" + jMethodRequest.declaringClass + "'");
+                            "' parameter(s) found in class '" + jMethodRequest.declaringClass.getName() + "'");
         } else {
             if (jMethodRequest.bFuncParamCount == 0 || jMethodRequest.bParamTypes[0].tag != TypeTags.HANDLE) {
                 throw new JInteropException(DiagnosticErrorCode.METHOD_NOT_FOUND,
                         "No such public static method '" + jMethodRequest.methodName + "' with '" +
                                 jMethodRequest.bFuncParamCount +
-                                "' parameter(s) found in class '" + jMethodRequest.declaringClass + "'");
+                                "' parameter(s) found in class '" + jMethodRequest.declaringClass.getName() + "'");
             } else {
                 throw new JInteropException(DiagnosticErrorCode.METHOD_NOT_FOUND,
                         "No such public method '" + jMethodRequest.methodName + "' with '" +
                                 jMethodRequest.bFuncParamCount +
-                                "' parameter(s) found in class '" + jMethodRequest.declaringClass + "'");
+                                "' parameter(s) found in class '" + jMethodRequest.declaringClass.getName() + "'");
             }
         }
     }

tests/jballerina-unit-test/src/test/java/org/ballerinalang/nativeimpl/jvm/tests/ClassWithPrivateConstructor.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2023, WSO2 LLC. (https://www.wso2.com) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.ballerinalang.nativeimpl.jvm.tests;
+
+/**
+ * This class is used for Java interoperability tests.
+ *
+ * @since 2201.9.0
+ */
+public class ClassWithPrivateConstructor {
+
+    private ClassWithPrivateConstructor() {
+    }
+}

tests/jballerina-unit-test/src/test/java/org/ballerinalang/nativeimpl/jvm/tests/StaticMethods.java

@@ -816,4 +816,12 @@ public static void getMapValueWithBalEnv(Environment env, BString name, long age
         output.put(StringUtils.fromString("results"), results);
         balFuture.complete(output);
     }
+
+    public static BString testOverloadedMethods(Environment env, BArray arr, BString str) {
+        return str;
+    }
+
+    public static BString testOverloadedMethods(ArrayValue obj, BString str) {
+        return str;
+    }
 }