JDK 11 jdk.compiler.jmod is the JMOD file for JDK 11 Compiler tool, which can be invoked by the "javac" command.

JDK 11 Compiler tool compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.compiler.jmod.

JDK 11 Compiler tool compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Compiler source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.compiler.

You can click and view the content of each source code file in the list below.

⏎ com/sun/tools/javac/processing/JavacMessager.java

/*
 * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package com.sun.tools.javac.processing;

import com.sun.tools.javac.model.JavacElements;
import com.sun.tools.javac.resources.CompilerProperties.Errors;
import com.sun.tools.javac.resources.CompilerProperties.Notes;
import com.sun.tools.javac.resources.CompilerProperties.Warnings;
import com.sun.tools.javac.util.*;
import com.sun.tools.javac.util.DefinedBy.Api;
import com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag;
import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.tree.JCTree.*;
import javax.lang.model.element.*;
import javax.tools.JavaFileObject;
import javax.tools.Diagnostic;
import javax.annotation.processing.*;

/**
 * An implementation of the Messager built on top of log.
 *
 * <p><b>This is NOT part of any supported API.
 * If you write code that depends on this, you do so at your own risk.
 * This code and its internal interfaces are subject to change or
 * deletion without notice.</b>
 */
public class JavacMessager implements Messager {
    Log log;
    JavacProcessingEnvironment processingEnv;
    int errorCount = 0;
    int warningCount = 0;

    JavacMessager(Context context, JavacProcessingEnvironment processingEnv) {
        log = Log.instance(context);
        this.processingEnv = processingEnv;
    }

    // processingEnv.getElementUtils()

    @DefinedBy(Api.ANNOTATION_PROCESSING)
    public void printMessage(Diagnostic.Kind kind, CharSequence msg) {
        printMessage(kind, msg, null, null, null);
    }

    @DefinedBy(Api.ANNOTATION_PROCESSING)
    public void printMessage(Diagnostic.Kind kind, CharSequence msg,
                      Element e) {
        printMessage(kind, msg, e, null, null);
    }

    /**
     * Prints a message of the specified kind at the location of the
     * annotation mirror of the annotated element.
     *
     * @param kind the kind of message
     * @param msg  the message, or an empty string if none
     * @param e    the annotated element
     * @param a    the annotation to use as a position hint
     */
    @DefinedBy(Api.ANNOTATION_PROCESSING)
    public void printMessage(Diagnostic.Kind kind, CharSequence msg,
                      Element e, AnnotationMirror a) {
        printMessage(kind, msg, e, a, null);
    }

    /**
     * Prints a message of the specified kind at the location of the
     * annotation value inside the annotation mirror of the annotated
     * element.
     *
     * @param kind the kind of message
     * @param msg  the message, or an empty string if none
     * @param e    the annotated element
     * @param a    the annotation containing the annotaiton value
     * @param v    the annotation value to use as a position hint
     */
    @DefinedBy(Api.ANNOTATION_PROCESSING)
    public void printMessage(Diagnostic.Kind kind, CharSequence msg,
                      Element e, AnnotationMirror a, AnnotationValue v) {
        JavaFileObject oldSource = null;
        JavaFileObject newSource = null;
        JCDiagnostic.DiagnosticPosition pos = null;
        JavacElements elemUtils = processingEnv.getElementUtils();
        Pair<JCTree, JCCompilationUnit> treeTop = elemUtils.getTreeAndTopLevel(e, a, v);
        if (treeTop != null) {
            newSource = treeTop.snd.sourcefile;
            if (newSource != null) {
                // save the old version and reinstate it later
                oldSource = log.useSource(newSource);
                pos = treeTop.fst.pos();
            }
        }
        try {
            switch (kind) {
            case ERROR:
                errorCount++;
                log.error(DiagnosticFlag.MULTIPLE, pos, Errors.ProcMessager(msg.toString()));
                break;

            case WARNING:
                warningCount++;
                log.warning(pos, Warnings.ProcMessager(msg.toString()));
                break;

            case MANDATORY_WARNING:
                warningCount++;
                log.mandatoryWarning(pos, Warnings.ProcMessager(msg.toString()));
                break;

            default:
                log.note(pos, Notes.ProcMessager(msg.toString()));
                break;
            }
        } finally {
            // reinstate the saved version, only if it was saved earlier
            if (newSource != null)
                log.useSource(oldSource);
        }
    }

    /**
     * Prints an error message.
     * Equivalent to {@code printError(null, msg)}.
     * @param msg  the message, or an empty string if none
     */
    public void printError(String msg) {
        printMessage(Diagnostic.Kind.ERROR, msg);
    }

    /**
     * Prints a warning message.
     * Equivalent to {@code printWarning(null, msg)}.
     * @param msg  the message, or an empty string if none
     */
    public void printWarning(String msg) {
        printMessage(Diagnostic.Kind.WARNING, msg);
    }

    /**
     * Prints a notice.
     * @param msg  the message, or an empty string if none
     */
    public void printNotice(String msg) {
        printMessage(Diagnostic.Kind.NOTE, msg);
    }

    public boolean errorRaised() {
        return errorCount > 0;
    }

    public int errorCount() {
        return errorCount;
    }

    public int warningCount() {
        return warningCount;
    }

    public void newRound() {
        errorCount = 0;
    }

    public String toString() {
        return "javac Messager";
    }
}

⏎ com/sun/tools/javac/processing/JavacMessager.java

Or download all of them as a single archive file:

File name: jdk.compiler-11.0.1-src.zip
File size: 1347269 bytes
Release date: 2018-11-04
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