*     use {@code new File(context.getCacheDir(), "directoryname").mkdir()}, or, if you need an
   *     arbitrary number of temporary directories, you might have to generate multiple directory
   *     names in a loop until {@code mkdir()} returns {@code true}.) For Java 7+ users, prefer
   *     {@link java.nio.file.Files#createTempDirectory}, transforming it to a {@link File} using

 * limitations under the License.
 */

package com.google.common.base;

import static com.google.common.base.StandardSystemProperty.JAVA_COMPILER;
import static com.google.common.base.StandardSystemProperty.JAVA_EXT_DIRS;
import static com.google.common.truth.Truth.assertWithMessage;

import com.google.common.annotations.GwtIncompatible;
import junit.framework.TestCase;

/**
 * Tests for {@link StandardSystemProperty}.
 *

        .containsExactly(rootDir, fileA, fileB, dir1, dir2);
  }

  @CanIgnoreReturnValue
  private File newDir(String name) {
    File file = new File(rootDir, name);
    file.mkdir();
    return file;
  }

  @CanIgnoreReturnValue
  private File newFile(String name) throws IOException {
    File file = new File(rootDir, name);
    file.createNewFile();
    return file;
  }

   *     Java 8 and removed in Java 9. We do not plan to remove this API from Guava, but if you are
   *     using it, it is probably not doing what you want.
   */
  @Deprecated
  JAVA_EXT_DIRS("java.ext.dirs"),

  /** Operating system name. */
  OS_NAME("os.name"),

  /** Operating system architecture. */
  OS_ARCH("os.arch"),

  /** Operating system version. */
  OS_VERSION("os.version"),

      String baseName = System.currentTimeMillis() + "-";

      for (int counter = 0; counter < TEMP_DIR_ATTEMPTS; counter++) {
        File tempDir = new File(baseDir, baseName + counter);
        if (tempDir.mkdir()) {
          return tempDir;
        }
      }
      throw new IllegalStateException(
          "Failed to create directory within "
              + TEMP_DIR_ATTEMPTS
              + " attempts (tried "

   * deleted in the tear-down for this test.
   */
  protected final File createTempDir() throws IOException {
    File tempFile = File.createTempFile("IoTestCase", "");
    if (!tempFile.delete() || !tempFile.mkdir()) {
      throw new IOException("failed to create temp dir");
    }
    filesToDelete.add(tempFile);
    return tempFile;
  }

  /**

 * limitations under the License.
 */

package com.google.common.base;

import static com.google.common.base.StandardSystemProperty.JAVA_COMPILER;
import static com.google.common.base.StandardSystemProperty.JAVA_EXT_DIRS;
import static com.google.common.truth.Truth.assertWithMessage;

import com.google.common.annotations.GwtIncompatible;
import junit.framework.TestCase;

/**
 * Tests for {@link StandardSystemProperty}.
 *

   *     Java 8 and removed in Java 9. We do not plan to remove this API from Guava, but if you are
   *     using it, it is probably not doing what you want.
   */
  @Deprecated
  JAVA_EXT_DIRS("java.ext.dirs"),

  /** Operating system name. */
  OS_NAME("os.name"),

  /** Operating system architecture. */
  OS_ARCH("os.arch"),

  /** Operating system version. */
  OS_VERSION("os.version"),

        .containsExactly(rootDir, fileA, fileB, dir1, dir2);
  }

  @CanIgnoreReturnValue
  private File newDir(String name) {
    File file = new File(rootDir, name);
    file.mkdir();
    return file;
  }

  @CanIgnoreReturnValue
  private File newFile(String name) throws IOException {
    File file = new File(rootDir, name);
    file.createNewFile();
    return file;
  }

   * deleted in the tear-down for this test.
   */
  protected final File createTempDir() throws IOException {
    File tempFile = File.createTempFile("IoTestCase", "");
    if (!tempFile.delete() || !tempFile.mkdir()) {
      throw new IOException("failed to create temp dir");
    }
    filesToDelete.add(tempFile);
    return tempFile;
  }

  /**