diff --git a/compiler/src/dotty/tools/dotc/transform/Bridges.scala b/compiler/src/dotty/tools/dotc/transform/Bridges.scala
index 071109147b45..e302170991f9 100644
--- a/compiler/src/dotty/tools/dotc/transform/Bridges.scala
+++ b/compiler/src/dotty/tools/dotc/transform/Bridges.scala
@@ -37,7 +37,7 @@ class Bridges(root: ClassSymbol, thisPhase: DenotTransformer)(using Context) {
     override def parents = Array(root.superClass)
 
     override def exclude(sym: Symbol) =
-      !sym.isOneOf(MethodOrModule) || super.exclude(sym)
+      !sym.isOneOf(MethodOrModule) || sym.isAllOf(Module | JavaDefined) || super.exclude(sym)
 
     override def canBeHandledByParent(sym1: Symbol, sym2: Symbol, parent: Symbol): Boolean =
       OverridingPairs.isOverridingPair(sym1, sym2, parent.thisType)
diff --git a/compiler/src/dotty/tools/dotc/typer/Checking.scala b/compiler/src/dotty/tools/dotc/typer/Checking.scala
index 0d93e83432fe..662ec838b899 100644
--- a/compiler/src/dotty/tools/dotc/typer/Checking.scala
+++ b/compiler/src/dotty/tools/dotc/typer/Checking.scala
@@ -527,7 +527,7 @@ object Checking {
       fail("Traits cannot have secondary constructors" + addendum)
     checkApplicable(Inline, sym.isTerm && !sym.isOneOf(Mutable | Module))
     checkApplicable(Lazy, !sym.isOneOf(Method | Mutable))
-    if (sym.isType && !sym.is(Deferred))
+    if (sym.isType && !sym.isOneOf(Deferred | JavaDefined))
       for (cls <- sym.allOverriddenSymbols.filter(_.isClass)) {
         fail(CannotHaveSameNameAs(sym, cls, CannotHaveSameNameAs.CannotBeOverridden))
         sym.setFlag(Private) // break the overriding relationship by making sym Private
diff --git a/tests/run/i15199/Child_1.java b/tests/run/i15199/Child_1.java
new file mode 100644
index 000000000000..f66dcc55279c
--- /dev/null
+++ b/tests/run/i15199/Child_1.java
@@ -0,0 +1,4 @@
+public class Child_1 extends Parent_1 {
+  public class Inner {
+  }
+}
diff --git a/tests/run/i15199/Parent_1.java b/tests/run/i15199/Parent_1.java
new file mode 100644
index 000000000000..529c9780a308
--- /dev/null
+++ b/tests/run/i15199/Parent_1.java
@@ -0,0 +1,4 @@
+public class Parent_1 {
+  public class Inner {
+  }
+}
diff --git a/tests/run/i15199/Test_2.scala b/tests/run/i15199/Test_2.scala
new file mode 100644
index 000000000000..9684d6fb2655
--- /dev/null
+++ b/tests/run/i15199/Test_2.scala
@@ -0,0 +1,5 @@
+class ScalaChild extends Child_1
+
+@main def Test(): Unit =
+  val methods = classOf[ScalaChild].getDeclaredMethods()
+  assert(methods.length == 0, methods.mkString(", "))