if (envVars == null) {
                Properties tmp = new Properties();
                boolean caseSensitive = !Os.IS_WINDOWS;
                for (Map.Entry<String, String> entry : System.getenv().entrySet()) {
                    String key = "env."
                            + (caseSensitive ? entry.getKey() : entry.getKey().toUpperCase(Locale.ENGLISH));
                    tmp.setProperty(key, entry.getValue());

    if (!from.renameTo(to)) {
      copy(from, to);
      if (!from.delete()) {
        if (!to.delete()) {
          throw new IOException("Unable to delete " + to);
        }
        throw new IOException("Unable to delete " + from);
      }
    }
  }

  /**

 */
public class ContentCacheTest {

    private File tempFile;

    @After
    public void tearDown() {
        if (tempFile != null && tempFile.exists()) {
            tempFile.delete();
        }
    }

    @Test
    public void testMemoryBasedCacheConstructor() {
        byte[] data = "Hello, World!".getBytes();
        ContentCache cache = new ContentCache(data);

        try {
            final boolean deleted = storage.delete(BlobId.of(bucket, objectName));
            if (!deleted && logger.isDebugEnabled()) {
                logger.debug("Object may not exist: {}", objectName);
            }
        } catch (final Exception e) {
            throw new StorageException("Failed to delete " + objectName, e);
        }
    }

    @Override

        });
        return redirectWith(getClass(), moreUrl("list/1").params("dictId", form.dictId));
    }

    /**
     * Delete a char mapping item.
     * @param form The edit form.
     * @return The HTML response.
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse delete(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.DETAILS, form.dictId);

func (c *MapClaims) Set(key string, val any) {
	if c == nil {
		return
	}
	c.MapClaims[key] = val
}

// Delete deletes a key named key.
func (c *MapClaims) Delete(key string) {
	if c == nil {
		return
	}
	delete(c.MapClaims, key)
}

// Lookup returns the value and if the key is found.
func (c *MapClaims) Lookup(key string) (value string, ok bool) {
	if c == nil {

    }

    /**
     * Deletes a scheduled job.
     *
     * @param form the edit form containing the ID of the job to delete
     * @return HTML response redirecting to the list page after deletion
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse delete(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.DETAILS, this::asListHtml);
        final String id = form.id;

        sb.append(dm).append(updatedBy);
        sb.append(dm).append(updatedTime);
        sb.append(dm).append(value);
        sb.append(dm).append(virtualHost);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");
        return sb.toString();
    }

    // ===================================================================================

   * whether nulls were to be permitted or forbidden, but presumably the eventual fix will be to
   * permit them, as it seems more likely that code would depend on that behavior than on the other.
   * Thus, we say the bug is in add(), which fails to support null.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static Method getAddNullSupportedMethod() {

   * whether nulls were to be permitted or forbidden, but presumably the eventual fix will be to
   * permit them, as it seems more likely that code would depend on that behavior than on the other.
   * Thus, we say the bug is in add(), which fails to support null.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static Method getAddNullSupportedMethod() {