+ recognize first param of WrapperResource-ctor as implicitly @owning

org.eclipse.jdt.core.compiler.batch/src/org/eclipse/jdt/internal/compiler/lookup/MethodBinding.java

@@ -1478,6 +1478,9 @@ public boolean hasPolymorphicSignature(Scope scope) {
 public boolean ownsParameter(int i) {
 	if (this.parameterFlowBits != null)
 		return (this.parameterFlowBits[i] & PARAM_OWNING) != 0;
+	if (i == 0 && this.parameters.length > 0 && this.declaringClass.hasTypeBit(TypeIds.BitWrapperCloseable)) {
+		return this.parameters[0].hasTypeBit(TypeIds.BitAutoCloseable);
+	}
 	return false;
 }
 public boolean notownsParameter(int i) {

org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/ResourceLeakAnnotatedTests.java

@@ -1289,4 +1289,52 @@ void test3(String name) throws Exception {
 		false);
 
 }
+public void testSubclassingWrapperResource() {
+	runLeakTestWithAnnotations(
+		new String[] {
+			"p1/C.java",
+			"""
+			package p1;
+			import org.eclipse.jdt.annotation.*;
+			import java.io.*;
+			public class C extends BufferedInputStream {
+				public C(@Owning InputStream input) {
+					super(input); // should not complain, super param is implicilty @Owning
+				}
+				static void test1(@Owning InputStream input) {
+					C c = new C(input);
+				}
+				static void test2(@Owning InputStream input) throws Exception {
+					C c = new C(input);
+					input.close(); // now C is resource-less
+				}
+				static void test3(String name) throws Exception {
+					FileInputStream fis = new FileInputStream(name);
+					C c = new C(fis);
+					if (name == null)
+						fis.close();
+				}
+			}
+			"""
+		},
+		"""
+		----------
+		1. ERROR in p1\\C.java (at line 9)
+			C c = new C(input);
+			  ^
+		Resource leak: 'c' is never closed
+		----------
+		2. INFO in p1\\C.java (at line 12)
+			C c = new C(input);
+			  ^
+		Resource 'c' should be managed by try-with-resource
+		----------
+		3. ERROR in p1\\C.java (at line 17)
+			C c = new C(fis);
+			  ^
+		Potential resource leak: 'c' may not be closed
+		----------
+		""",
+		null);
+}
 }