--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/api/tree/Diagnostic.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2015, 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 jdk.nashorn.api.tree;
+
+/**
+ * Interface for diagnostics from tools.  A diagnostic usually reports
+ * a problem at a specific position in a source file.  However, not
+ * all diagnostics are associated with a position or a file.
+ *
+ * <p>A position is a zero-based character offset from the beginning of
+ * a file.  Negative values (except {@link #NOPOS}) are not valid
+ * positions.
+ *
+ * <p>Line and column numbers begin at 1.  Negative values (except
+ * {@link #NOPOS}) and 0 are not valid line or column numbers.
+ *
+ * <p>Line terminator is as defined in ECMAScript specification which is one
+ * of { &#92;u000A, &#92;u000B, &#92;u2028, &#92;u2029 }.
+ *
+ * @since 9
+ */
+public interface Diagnostic {
+
+    /**
+     * Kinds of diagnostics, for example, error or warning.
+     *
+     * The kind of a diagnostic can be used to determine how the
+     * diagnostic should be presented to the user. For example,
+     * errors might be colored red or prefixed with the word "Error",
+     * while warnings might be colored yellow or prefixed with the
+     * word "Warning". There is no requirement that the Kind
+     * should imply any inherent semantic meaning to the message
+     * of the diagnostic: for example, a tool might provide an
+     * option to report all warnings as errors.
+     */
+    enum Kind {
+        /**
+         * Problem which prevents the tool's normal completion.
+         */
+        ERROR,
+        /**
+         * Problem which does not usually prevent the tool from
+         * completing normally.
+         */
+        WARNING,
+        /**
+         * Problem similar to a warning, but is mandated by the tool's
+         * specification.  For example, the Java&trade; Language
+         * Specification mandates warnings on certain
+         * unchecked operations and the use of deprecated methods.
+         */
+        MANDATORY_WARNING,
+        /**
+         * Informative message from the tool.
+         */
+        NOTE,
+        /**
+         * Diagnostic which does not fit within the other kinds.
+         */
+        OTHER,
+    }
+
+    /**
+     * Used to signal that no position is available.
+     */
+    public final static long NOPOS = -1;
+
+    /**
+     * Gets the kind of this diagnostic, for example, error or
+     * warning.
+     * @return the kind of this diagnostic
+     */
+    Kind getKind();
+
+    /**
+     * Gets a character offset from the beginning of the source object
+     * associated with this diagnostic that indicates the location of
+     * the problem.  In addition, the following must be true:
+     *
+     * <p>{@code getStartPostion() <= getPosition()}
+     * <p>{@code getPosition() <= getEndPosition()}
+     *
+     * @return character offset from beginning of source; {@link
+     * #NOPOS} if no location is suitable
+     */
+    long getPosition();
+
+    /**
+     * Gets the source file name.
+     *
+     * @return the file name or null if not available
+     */
+    String getFileName();
+
+    /**
+     * Gets the line number of the character offset returned by
+     * {@linkplain #getPosition()}.
+     *
+     * @return a line number or {@link #NOPOS} if and only if {@link
+     * #getPosition()} returns {@link #NOPOS}
+     */
+    long getLineNumber();
+
+    /**
+     * Gets the column number of the character offset returned by
+     * {@linkplain #getPosition()}.
+     *
+     * @return a column number or {@link #NOPOS} if and only if {@link
+     * #getPosition()} returns {@link #NOPOS}
+     */
+    long getColumnNumber();
+
+    /**
+     * Gets a diagnostic code indicating the type of diagnostic.  The
+     * code is implementation-dependent and might be {@code null}.
+     *
+     * @return a diagnostic code
+     */
+    String getCode();
+
+    /**
+     * Gets a message for this diagnostic.
+     *
+     * @return a message
+     */
+    String getMessage();
+}