diff --git a/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/DOMToModelPopulator.java b/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/DOMToModelPopulator.java
index 0173d318a87..a06851b1022 100644
--- a/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/DOMToModelPopulator.java
+++ b/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/DOMToModelPopulator.java
@@ -139,6 +139,12 @@ private static void addAsChild(JavaElementInfo parentInfo, IJavaElement childEle
 			openable.addChild(childElement);
 			return;
 		}
+		if (parentInfo instanceof SourceMethodWithChildrenInfo method) {
+			IJavaElement[] newElements = Arrays.copyOf(method.children, method.children.length + 1);
+			newElements[newElements.length - 1] = childElement;
+			method.children = newElements;
+			return;
+		}
 	}
 
 	@Override
@@ -385,7 +391,7 @@ public boolean visit(MethodDeclaration method) {
 				.toArray(String[]::new));
 		this.elements.push(newElement);
 		addAsChild(this.infos.peek(), newElement);
-		SourceMethodInfo info = new SourceMethodInfo();
+		SourceMethodInfo info = new SourceMethodWithChildrenInfo(new IJavaElement[0]);
 		info.setArgumentNames(((List<SingleVariableDeclaration>)method.parameters()).stream().map(param -> param.getName().toString().toCharArray()).toArray(char[][]::new));
 		info.arguments = ((List<SingleVariableDeclaration>)method.parameters()).stream()
 			.map(this::toLocalVariable)