Fix "Redundant superinterface" warning depends on Interface name

SuperTypeTest.test016(), SuperTypeTest.test017() failed when implementation of ReferenceBinding.hashCode() changed. The message was either "already defined by IChangeRulerColumn" or "already defined by IRevisionRulerColumn" depending on which Interface had the lower hashCode. Now using a LinkedHashMap to rely on the insertion order rather then the hashcode. relates to #3412
eclipse-jdt · Dec 11, 2024 · ece42f8 · ece42f8
1 parent fcbbaf5
commit ece42f8
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Showing 2 changed files with 8 additions and 8 deletions.
diff --git a/....jdt.core.compiler.batch/src/org/eclipse/jdt/internal/compiler/lookup/MethodVerifier.java b/....jdt.core.compiler.batch/src/org/eclipse/jdt/internal/compiler/lookup/MethodVerifier.java
@@ -27,6 +27,7 @@
 
 import java.util.ArrayList;
 import java.util.HashSet;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Set;
 import org.eclipse.jdt.internal.compiler.ast.MethodDeclaration;
@@ -321,12 +322,12 @@ void checkForRedundantSuperinterfaces(ReferenceBinding superclass, ReferenceBind
 	}
 
 	ReferenceBinding[] itsInterfaces = null;
-	SimpleSet inheritedInterfaces = new SimpleSet(5);
+	Set<ReferenceBinding> inheritedInterfaces = new LinkedHashSet<>();
 	ReferenceBinding superType = superclass;
 	while (superType != null && superType.isValidBinding()) {
 		if ((itsInterfaces = superType.superInterfaces()) != Binding.NO_SUPERINTERFACES) {
 			for (ReferenceBinding inheritedInterface : itsInterfaces) {
-				if (!inheritedInterfaces.includes(inheritedInterface) && inheritedInterface.isValidBinding()) {
+				if (!inheritedInterfaces.contains(inheritedInterface) && inheritedInterface.isValidBinding()) {
 					if (interfacesToCheck.includes(inheritedInterface)) {
 						if (redundantInterfaces == null) {
 							redundantInterfaces = new SimpleSet(3);
@@ -350,10 +351,9 @@ void checkForRedundantSuperinterfaces(ReferenceBinding superclass, ReferenceBind
 		superType = superType.superclass();
 	}
 
-	int nextPosition = inheritedInterfaces.elementSize;
+	int nextPosition = inheritedInterfaces.size();
 	if (nextPosition == 0) return;
-	ReferenceBinding[] interfacesToVisit = new ReferenceBinding[nextPosition];
-	inheritedInterfaces.asArray(interfacesToVisit);
+	ReferenceBinding[] interfacesToVisit = inheritedInterfaces.toArray(ReferenceBinding[]::new);
 	for (int i = 0; i < nextPosition; i++) {
 		superType = interfacesToVisit[i];
 		if ((itsInterfaces = superType.superInterfaces()) != Binding.NO_SUPERINTERFACES) {
@@ -362,7 +362,7 @@ void checkForRedundantSuperinterfaces(ReferenceBinding superclass, ReferenceBind
 				System.arraycopy(interfacesToVisit, 0, interfacesToVisit = new ReferenceBinding[nextPosition + itsLength + 5], 0, nextPosition);
 			for (int a = 0; a < itsLength; a++) {
 				ReferenceBinding inheritedInterface = itsInterfaces[a];
-				if (!inheritedInterfaces.includes(inheritedInterface) && inheritedInterface.isValidBinding()) {
+				if (!inheritedInterfaces.contains(inheritedInterface) && inheritedInterface.isValidBinding()) {
 					if (interfacesToCheck.includes(inheritedInterface)) {
 						if (redundantInterfaces == null) {
 							redundantInterfaces = new SimpleSet(3);

diff --git a/...core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/SuperTypeTest.java b/...core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/SuperTypeTest.java
@@ -583,7 +583,7 @@ public void test017() {
 		"1. ERROR in X.java (at line 11)\n" +
 		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
 		"	                                          ^^^^^^^^^^^^^^^^^^^^\n" +
-		"Redundant superinterface IVerticalRulerColumn for the type X, already defined by IRevisionRulerColumn\n" +
+		"Redundant superinterface IVerticalRulerColumn for the type X, already defined by IChangeRulerColumn\n" +
 		"----------\n" +
 		"2. ERROR in X.java (at line 11)\n" +
 		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
@@ -593,7 +593,7 @@ public void test017() {
 		"3. ERROR in X.java (at line 11)\n" +
 		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
 		"	                                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
-		"Redundant superinterface IVerticalRulerInfoExtension for the type X, already defined by IRevisionRulerColumn\n" +
+		"Redundant superinterface IVerticalRulerInfoExtension for the type X, already defined by IChangeRulerColumn\n" +
 		"----------\n",
 		JavacTestOptions.SKIP);
 }