* {@link FileOutputStream}を作成します。
     *
     * @param file
     *            ファイル。{@literal null}であってはいけません
     * @return ファイルへ出力する{@link FileOutputStream}
     * @see FileOutputStream#FileOutputStream(File)
     */
    public static FileOutputStream create(final File file) {
        assertArgumentNotNull("file", file);

        try {
            return new FileOutputStream(file);
        } catch (final IOException e) {

     *            プロパティセット。{@literal null}であってはいけません
     * @param file
     *            ファイル。{@literal null}であってはいけません
     * @param encoding
     *            エンコーディング。{@literal null}や空文字列であってはいけません
     */
    public static void load(final Properties props, final File file, final String encoding) {
        assertArgumentNotNull("props", props);
        assertArgumentNotNull("file", file);
        assertArgumentNotEmpty("encoding", encoding);

    StringBuilder builder = new StringBuilder();

    URL url = ResourceUtil.getResource(getClass().getName().replace('.', '/') + ".txt");

    File inputFile = URLUtil.toFile(url);

    File outputFile = new File(inputFile.getParentFile(), ".out");

    /**
     * @throws Exception
     */
    @Test
    public void testIsToOs() throws Exception {
        final int result = copy(is, os);

import static org.junit.Assert.assertThat;

import java.io.File;
import java.net.URL;

import org.codelibs.core.net.URLUtil;
import org.junit.Test;

/**
 * @author koichik
 *
 */
public class FileUtilTest {

    URL url = ResourceUtil.getResource(getClass().getName().replace('.', '/') + ".txt");

    File inputFile = URLUtil.toFile(url);

    /**
     * @throws Exception
     */

/*
 * Copyright 2012-2024 CodeLibs Project and the Others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

/**
 * システムプロパティ用のユーティリティクラスです。
 *
 * @author wyukawa
 * @author shinsuke
 *
 */
public abstract class SystemUtil {

    /**
     * <code>file.encoding</code>システムプロパティ。例:UTF-8
     */
    public static final String FILE_ENCODING = System.getProperty("file.encoding");

    /**
     * <code>line.separator</code> システムプロパティ。例えばMac OS Xなら
     * <code>&quot;\n&quot;</code>
     */

/*
 * Copyright 2012-2024 CodeLibs Project and the Others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

/*
 * Copyright 2012-2024 CodeLibs Project and the Others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

/*
 * Copyright 2012-2024 CodeLibs Project and the Others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

/*
 * Copyright 2012-2024 CodeLibs Project and the Others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,