diff --git a/rewrite-java-11/src/main/java/org/openrewrite/java/isolated/ReloadableJava11TypeMapping.java b/rewrite-java-11/src/main/java/org/openrewrite/java/isolated/ReloadableJava11TypeMapping.java
index 5f3295c40a7..d0b90bea744 100644
--- a/rewrite-java-11/src/main/java/org/openrewrite/java/isolated/ReloadableJava11TypeMapping.java
+++ b/rewrite-java-11/src/main/java/org/openrewrite/java/isolated/ReloadableJava11TypeMapping.java
@@ -579,7 +579,11 @@ public JavaType.Primitive primitive(TypeTag tag) {
                             .map(attr -> attr.getValue().toString())
                             .collect(Collectors.toList());
                 } else {
-                    defaultValues = Collections.singletonList(methodSymbol.getDefaultValue().getValue().toString());
+                    try {
+                        defaultValues = Collections.singletonList(methodSymbol.getDefaultValue().getValue().toString());
+                    } catch(UnsupportedOperationException e) {
+                        // not all Attribute implementations define `getValue()`
+                    }
                 }
             }
             JavaType.Method method = new JavaType.Method(
diff --git a/rewrite-java-17/src/main/java/org/openrewrite/java/isolated/ReloadableJava17TypeMapping.java b/rewrite-java-17/src/main/java/org/openrewrite/java/isolated/ReloadableJava17TypeMapping.java
index b7c7ff483ff..7d5ad9da3f6 100644
--- a/rewrite-java-17/src/main/java/org/openrewrite/java/isolated/ReloadableJava17TypeMapping.java
+++ b/rewrite-java-17/src/main/java/org/openrewrite/java/isolated/ReloadableJava17TypeMapping.java
@@ -588,7 +588,11 @@ public JavaType.Primitive primitive(TypeTag tag) {
                             .map(attr -> attr.getValue().toString())
                             .collect(Collectors.toList());
                 } else {
-                    defaultValues = Collections.singletonList(methodSymbol.getDefaultValue().getValue().toString());
+                    try {
+                        defaultValues = Collections.singletonList(methodSymbol.getDefaultValue().getValue().toString());
+                    } catch(UnsupportedOperationException e) {
+                        // not all Attribute implementations define `getValue()`
+                    }
                 }
             }
             JavaType.Method method = new JavaType.Method(
diff --git a/rewrite-java-21/src/main/java/org/openrewrite/java/isolated/ReloadableJava21TypeMapping.java b/rewrite-java-21/src/main/java/org/openrewrite/java/isolated/ReloadableJava21TypeMapping.java
index f55a32132b8..10d9b202c6f 100644
--- a/rewrite-java-21/src/main/java/org/openrewrite/java/isolated/ReloadableJava21TypeMapping.java
+++ b/rewrite-java-21/src/main/java/org/openrewrite/java/isolated/ReloadableJava21TypeMapping.java
@@ -599,7 +599,11 @@ public JavaType.Primitive primitive(TypeTag tag) {
                             .map(attr -> attr.getValue().toString())
                             .collect(Collectors.toList());
                 } else {
-                    defaultValues = Collections.singletonList(methodSymbol.getDefaultValue().getValue().toString());
+                    try {
+                        defaultValues = Collections.singletonList(methodSymbol.getDefaultValue().getValue().toString());
+                    } catch(UnsupportedOperationException e) {
+                        // not all Attribute implementations define `getValue()`
+                    }
                 }
             }
             JavaType.Method method = new JavaType.Method(
diff --git a/rewrite-java-8/src/main/java/org/openrewrite/java/ReloadableJava8TypeMapping.java b/rewrite-java-8/src/main/java/org/openrewrite/java/ReloadableJava8TypeMapping.java
index 0d8408dd026..988b0920206 100644
--- a/rewrite-java-8/src/main/java/org/openrewrite/java/ReloadableJava8TypeMapping.java
+++ b/rewrite-java-8/src/main/java/org/openrewrite/java/ReloadableJava8TypeMapping.java
@@ -581,7 +581,11 @@ public JavaType.Primitive primitive(TypeTag tag) {
                             .map(attr -> attr.getValue().toString())
                             .collect(Collectors.toList());
                 } else {
-                    defaultValues = Collections.singletonList(methodSymbol.getDefaultValue().getValue().toString());
+                    try {
+                        defaultValues = Collections.singletonList(methodSymbol.getDefaultValue().getValue().toString());
+                    } catch(UnsupportedOperationException e) {
+                        // not all Attribute implementations define `getValue()`
+                    }
                 }
             }
             JavaType.Method method = new JavaType.Method(