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"nb-javac" is a patched version of OpenJDK "javac", i.e., the Java compiler. This has long been part of NetBeans, providing a highly tuned Java compiler specifically for the Java editor i.e., parsing and lexing for features such as syntax coloring, code completion.
/*
* Copyright (c) 2010, 2014, 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
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*/
package propertiesparser.parser;
import java.io.*;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.*;
/**
* Class to facilitate manipulating compiler.properties.
*/
public class MessageFile {
MessageLine firstLine;
public Map messages = new TreeMap<>();
public File file;
public String keyPrefix;
public MessageFile(File file, String keyPrefix) throws IOException {
this.file = file;
this.keyPrefix = keyPrefix;
read(file);
}
final void read(File in) throws IOException {
MessageLine currLine = null;
for (String line : Files.readAllLines(in.toPath())) {
if (currLine == null)
firstLine = currLine = new MessageLine(line);
else
currLine = currLine.append(line);
if (line.startsWith(keyPrefix + ".")) {
int eq = line.indexOf("=");
if (eq > 0)
messages.put(line.substring(0, eq).trim(), new Message(currLine));
}
}
}
}