diff -r 4ebc2e2fb97c -r 71c04702a3d5 src/java.management/share/classes/javax/management/MBeanParameterInfo.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.management/share/classes/javax/management/MBeanParameterInfo.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package javax.management;
+
+import java.util.Objects;
+
+
+/**
+ * Describes an argument of an operation exposed by an MBean.
+ * Instances of this class are immutable.  Subclasses may be mutable
+ * but this is not recommended.
+ *
+ * @since 1.5
+ */
+public class MBeanParameterInfo extends MBeanFeatureInfo implements Cloneable {
+
+    /* Serial version */
+    static final long serialVersionUID = 7432616882776782338L;
+
+    /* All zero-length arrays are interchangeable. */
+    static final MBeanParameterInfo[] NO_PARAMS = new MBeanParameterInfo[0];
+
+    /**
+     * @serial The type or class name of the data.
+     */
+    private final String type;
+
+
+    /**
+     * Constructs an {@code MBeanParameterInfo} object.
+     *
+     * @param name The name of the data
+     * @param type The type or class name of the data
+     * @param description A human readable description of the data. Optional.
+     */
+    public MBeanParameterInfo(String name,
+                              String type,
+                              String description) {
+        this(name, type, description, (Descriptor) null);
+    }
+
+    /**
+     * Constructs an {@code MBeanParameterInfo} object.
+     *
+     * @param name The name of the data
+     * @param type The type or class name of the data
+     * @param description A human readable description of the data. Optional.
+     * @param descriptor The descriptor for the operation.  This may be null
+     * which is equivalent to an empty descriptor.
+     *
+     * @since 1.6
+     */
+    public MBeanParameterInfo(String name,
+                              String type,
+                              String description,
+                              Descriptor descriptor) {
+        super(name, description, descriptor);
+
+        this.type = type;
+    }
+
+
+    /**
+     * <p>Returns a shallow clone of this instance.
+     * The clone is obtained by simply calling {@code super.clone()},
+     * thus calling the default native shallow cloning mechanism
+     * implemented by {@code Object.clone()}.
+     * No deeper cloning of any internal field is made.</p>
+     *
+     * <p>Since this class is immutable, cloning is chiefly of
+     * interest to subclasses.</p>
+     */
+     public Object clone () {
+         try {
+             return super.clone() ;
+         } catch (CloneNotSupportedException e) {
+             // should not happen as this class is cloneable
+             return null;
+         }
+     }
+
+    /**
+     * Returns the type or class name of the data.
+     *
+     * @return the type string.
+     */
+    public String getType() {
+        return type;
+    }
+
+    public String toString() {
+        return
+            getClass().getName() + "[" +
+            "description=" + getDescription() + ", " +
+            "name=" + getName() + ", " +
+            "type=" + getType() + ", " +
+            "descriptor=" + getDescriptor() +
+            "]";
+    }
+
+    /**
+     * Compare this MBeanParameterInfo to another.
+     *
+     * @param o the object to compare to.
+     *
+     * @return true if and only if {@code o} is an MBeanParameterInfo such
+     * that its {@link #getName()}, {@link #getType()},
+     * {@link #getDescriptor()}, and {@link
+     * #getDescription()} values are equal (not necessarily identical)
+     * to those of this MBeanParameterInfo.
+     */
+    public boolean equals(Object o) {
+        if (o == this)
+            return true;
+        if (!(o instanceof MBeanParameterInfo))
+            return false;
+        MBeanParameterInfo p = (MBeanParameterInfo) o;
+        return (Objects.equals(p.getName(), getName()) &&
+                Objects.equals(p.getType(), getType()) &&
+                Objects.equals(p.getDescription(), getDescription()) &&
+                Objects.equals(p.getDescriptor(), getDescriptor()));
+    }
+
+    public int hashCode() {
+        return Objects.hash(getName(), getType());
+    }
+}