src/java.base/share/classes/java/lang/reflect/Constructor.java

@@ -36,10 +36,11 @@
 import sun.reflect.generics.factory.CoreReflectionFactory;
 import sun.reflect.generics.factory.GenericsFactory;
 import sun.reflect.generics.scope.ConstructorScope;
 import java.lang.annotation.Annotation;
 import java.lang.annotation.AnnotationFormatError;
+import java.util.StringJoiner;
 
 /**
  * {@code Constructor} provides information about, and access to, a single
  * constructor for a class.
  *

@@ -358,10 +359,24 @@
     @Override
     void specificToStringHeader(StringBuilder sb) {
         sb.append(getDeclaringClass().getTypeName());
     }
 
+    @Override
+    String toShortString() {
+        StringBuilder sb = new StringBuilder("constructor ");
+        sb.append(getDeclaringClass().getTypeName());
+        sb.append('(');
+        StringJoiner sj = new StringJoiner(",");
+        for (Class<?> parameterType : getParameterTypes()) {
+            sj.add(parameterType.getTypeName());
+        }
+        sb.append(sj);
+        sb.append(')');
+        return sb.toString();
+    }
+
     /**
      * Returns a string describing this {@code Constructor},
      * including type parameters.  The string is formatted as the
      * constructor access modifiers, if any, followed by an
      * angle-bracketed comma separated list of the constructor's type