diff --git a/libraries/kotlinx-metadata/jvm/ChangeLog.md b/libraries/kotlinx-metadata/jvm/ChangeLog.md
index d41bd219683..4ded0e01e08 100644
--- a/libraries/kotlinx-metadata/jvm/ChangeLog.md
+++ b/libraries/kotlinx-metadata/jvm/ChangeLog.md
@@ -3,6 +3,10 @@
 ## Next
 
 - Add `JvmPropertyExtensionVisitor.visitSyntheticMethodForDelegate` for optimized delegated properties (KT-39055).
+- Add JVM-specific class flags:
+  - `JvmClassExtensionVisitor.visitJvmFlags`
+  - `JvmFlag.Class.HAS_METHOD_BODIES_IN_INTERFACE`
+  - `JvmFlag.Class.IS_COMPILED_IN_COMPATIBILITY_MODE`
 - [`KT-48965`](https://youtrack.jetbrains.com/issue/KT-48965) Make the type of `KmValueParameter.type` non-null `KmType`
 
 ## 0.3.0
diff --git a/libraries/tools/kotlinp/src/org/jetbrains/kotlin/kotlinp/printers.kt b/libraries/tools/kotlinp/src/org/jetbrains/kotlin/kotlinp/printers.kt
index 1819491cd16..07c33cac822 100644
--- a/libraries/tools/kotlinp/src/org/jetbrains/kotlin/kotlinp/printers.kt
+++ b/libraries/tools/kotlinp/src/org/jetbrains/kotlin/kotlinp/printers.kt
@@ -794,11 +794,16 @@ class ClassPrinter(private val settings: KotlinpSettings) : KmClassVisitor(), Ab
         return object : JvmClassExtensionVisitor() {
             private val localDelegatedProperties = mutableListOf<StringBuilder>()
             private var moduleName: String? = null
+            private var jvmFlags: Flags? = null
 
             override fun visitAnonymousObjectOriginName(internalName: String) {
                 anonymousObjectOriginName = internalName
             }
 
+            override fun visitJvmFlags(flags: Flags) {
+                jvmFlags = flags
+            }
+
             override fun visitLocalDelegatedProperty(
                 flags: Flags, name: String, getterFlags: Flags, setterFlags: Flags
             ): KmPropertyVisitor? = visitProperty(
@@ -811,6 +816,17 @@ class ClassPrinter(private val settings: KotlinpSettings) : KmClassVisitor(), Ab
 
             override fun visitEnd() {
                 sb.appendDeclarationContainerExtensions(settings, localDelegatedProperties, moduleName)
+                val flags = jvmFlags
+                if (flags != null) {
+                    if (JvmFlag.Class.HAS_METHOD_BODIES_IN_INTERFACE(flags)) {
+                        sb.appendLine()
+                        sb.appendLine("  // has method bodies in interface")
+                    }
+                    if (JvmFlag.Class.IS_COMPILED_IN_COMPATIBILITY_MODE(flags)) {
+                        sb.appendLine()
+                        sb.appendLine("  // is compiled in compatibility mode")
+                    }
+                }
             }
         }
     }
diff --git a/libraries/tools/kotlinp/test/org/jetbrains/kotlin/kotlinp/test/KotlinpTestGenerated.java b/libraries/tools/kotlinp/test/org/jetbrains/kotlin/kotlinp/test/KotlinpTestGenerated.java
index dcf407c9521..8918c9d6d40 100644
--- a/libraries/tools/kotlinp/test/org/jetbrains/kotlin/kotlinp/test/KotlinpTestGenerated.java
+++ b/libraries/tools/kotlinp/test/org/jetbrains/kotlin/kotlinp/test/KotlinpTestGenerated.java
@@ -118,4 +118,27 @@ public class KotlinpTestGenerated extends AbstractKotlinpTest {
     public void testVersionRequirement() throws Exception {
         runTest("libraries/tools/kotlinp/testData/VersionRequirement.kt");
     }
+
+    @TestMetadata("libraries/tools/kotlinp/testData/jvmDefault")
+    @TestDataPath("$PROJECT_ROOT")
+    @RunWith(JUnit3RunnerWithInners.class)
+    public static class JvmDefault extends AbstractKotlinpTest {
+        private void runTest(String testDataFilePath) throws Exception {
+            KotlinTestUtils.runTest(this::doTest, this, testDataFilePath);
+        }
+
+        @TestMetadata("All.kt")
+        public void testAll() throws Exception {
+            runTest("libraries/tools/kotlinp/testData/jvmDefault/All.kt");
+        }
+
+        @TestMetadata("AllCompatibility.kt")
+        public void testAllCompatibility() throws Exception {
+            runTest("libraries/tools/kotlinp/testData/jvmDefault/AllCompatibility.kt");
+        }
+
+        public void testAllFilesPresentInJvmDefault() throws Exception {
+            KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("libraries/tools/kotlinp/testData/jvmDefault"), Pattern.compile("^(.+)\\.kt$"), null, true);
+        }
+    }
 }
diff --git a/libraries/tools/kotlinp/testData/jvmDefault/All.kt b/libraries/tools/kotlinp/testData/jvmDefault/All.kt
new file mode 100644
index 00000000000..93e426ec6e1
--- /dev/null
+++ b/libraries/tools/kotlinp/testData/jvmDefault/All.kt
@@ -0,0 +1,12 @@
+// !JVM_DEFAULT_MODE: all
+
+interface A {
+    fun f() {}
+    fun g()
+}
+
+interface B : A {
+    override fun g() {}
+}
+
+class C : B
diff --git a/libraries/tools/kotlinp/testData/jvmDefault/All.txt b/libraries/tools/kotlinp/testData/jvmDefault/All.txt
new file mode 100644
index 00000000000..d167f8f626b
--- /dev/null
+++ b/libraries/tools/kotlinp/testData/jvmDefault/All.txt
@@ -0,0 +1,40 @@
+// A.class
+// ------------------------------------------
+// requires compiler version 1.4.0 (level=ERROR)
+public abstract interface A : kotlin/Any {
+
+  // signature: f()V
+  public open fun f(): kotlin/Unit
+
+  // signature: g()V
+  public abstract fun g(): kotlin/Unit
+
+  // module name: test-module
+
+  // has method bodies in interface
+}
+// B.class
+// ------------------------------------------
+// requires compiler version 1.4.0 (level=ERROR)
+public abstract interface B : A {
+
+  // signature: g()V
+  public open fun g(): kotlin/Unit
+
+  // module name: test-module
+
+  // has method bodies in interface
+}
+// C.class
+// ------------------------------------------
+public final class C : B {
+
+  // signature: <init>()V
+  public constructor()
+
+  // module name: test-module
+}
+// META-INF/test-module.kotlin_module
+// ------------------------------------------
+module {
+}
diff --git a/libraries/tools/kotlinp/testData/jvmDefault/AllCompatibility.kt b/libraries/tools/kotlinp/testData/jvmDefault/AllCompatibility.kt
new file mode 100644
index 00000000000..69558009752
--- /dev/null
+++ b/libraries/tools/kotlinp/testData/jvmDefault/AllCompatibility.kt
@@ -0,0 +1,12 @@
+// !JVM_DEFAULT_MODE: all-compatibility
+
+interface A {
+    fun f() {}
+    fun g()
+}
+
+interface B : A {
+    override fun g() {}
+}
+
+class C : B
diff --git a/libraries/tools/kotlinp/testData/jvmDefault/AllCompatibility.txt b/libraries/tools/kotlinp/testData/jvmDefault/AllCompatibility.txt
new file mode 100644
index 00000000000..ea2f081fdec
--- /dev/null
+++ b/libraries/tools/kotlinp/testData/jvmDefault/AllCompatibility.txt
@@ -0,0 +1,48 @@
+// A.class
+// ------------------------------------------
+public abstract interface A : kotlin/Any {
+
+  // signature: f()V
+  public open fun f(): kotlin/Unit
+
+  // signature: g()V
+  public abstract fun g(): kotlin/Unit
+
+  // module name: test-module
+
+  // has method bodies in interface
+
+  // is compiled in compatibility mode
+}
+// A$DefaultImpls.class
+// ------------------------------------------
+synthetic class
+// B.class
+// ------------------------------------------
+public abstract interface B : A {
+
+  // signature: g()V
+  public open fun g(): kotlin/Unit
+
+  // module name: test-module
+
+  // has method bodies in interface
+
+  // is compiled in compatibility mode
+}
+// B$DefaultImpls.class
+// ------------------------------------------
+synthetic class
+// C.class
+// ------------------------------------------
+public final class C : B {
+
+  // signature: <init>()V
+  public constructor()
+
+  // module name: test-module
+}
+// META-INF/test-module.kotlin_module
+// ------------------------------------------
+module {
+}