Add constructors taking a cause to JSSE exceptions

Summary

Add conventional constructors that take a cause to javax.net.ssl exception classes to avoid the need to call initCause as part of creating the exception.

Problem

The creation of many javax.net.ssl exception classes involves setting the cause, but the set of constructors does not include any ones taking a cause.

Solution

Add the the missing conventional constructors that take a cause argument. This change is to match the API that already exists in SSLException.

Specification

1. Update on javax.net.ssl.SSLHandshakeException

   +    /**
   +     * Creates a {@code SSLHandshakeException} with the specified detail
   +     * message and cause.
   +     *
   +     * @param message the detail message (which is saved for later retrieval
   +     *        by the {@link #getMessage()} method).
   +     * @param cause the cause (which is saved for later retrieval by the
   +     *        {@link #getCause()} method).  (A {@code null} value is
   +     *        permitted, and indicates that the cause is nonexistent or
   +     *        unknown.)
   +     * @since 19
   +     */
   +    public SSLHandshakeException(String message, Throwable cause) {
   +        super(message, cause);
   +    }

2. Update on SSLKeyException

   +    /**
   +     * Creates a {@code SSLKeyException} with the specified detail
   +     * message and cause.
   +     *
   +     * @param message the detail message (which is saved for later retrieval
   +     *        by the {@link #getMessage()} method).
   +     * @param cause the cause (which is saved for later retrieval by the
   +     *        {@link #getCause()} method).  (A {@code null} value is
   +     *        permitted, and indicates that the cause is nonexistent or
   +     *        unknown.)
   +     * @since 19
   +     */
   +    public SSLKeyException(String message, Throwable cause) {
   +        super(message, cause);
   +    }

3. Update on SSLPeerUnverifiedException

   +    /**
   +     * Creates a {@code SSLPeerUnverifiedException} with the specified detail
   +     * message and cause.
   +     *
   +     * @param message the detail message (which is saved for later retrieval
   +     *        by the {@link #getMessage()} method).
   +     * @param cause the cause (which is saved for later retrieval by the
   +     *        {@link #getCause()} method).  (A {@code null} value is
   +     *        permitted, and indicates that the cause is nonexistent or
   +     *        unknown.)
   +     * @since 19
   +     */
   +    public SSLPeerUnverifiedException(String message, Throwable cause) {
   +        super(message, cause);
   +    }

4. Update on SSLProtocolException

   +    /**
   +     * Creates a {@code SSLProtocolException} with the specified detail
   +     * message and cause.
   +     *
   +     * @param message the detail message (which is saved for later retrieval
   +     *        by the {@link #getMessage()} method).
   +     * @param cause the cause (which is saved for later retrieval by the
   +     *        {@link #getCause()} method).  (A {@code null} value is
   +     *        permitted, and indicates that the cause is nonexistent or
   +     *        unknown.)
   +     * @since 19
   +     */
   +    public SSLProtocolException(String message, Throwable cause) {
   +        super(message, cause);
   +    }