Bug 222861 [Commands] ParameterizedCommand#equals broken
Having two parameterized commands initialized with the constructor do not equals if the order of the parameterizations is not the same.
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/ParameterizedCommand.java
if (buffer == null) {
					buffer = new StringBuffer(rawText.substring(0, i));
				}
				buffer.append(CommandManager.ESCAPE_CHAR);
				buffer.append(c);
				break;
			default:
				if (buffer != null) {
					buffer.append(c);
				}
				break;
			}
		}
		if (buffer == null) {
			return rawText;
		}
		return buffer.toString();
	}
	/**
	 * Generates every possible combination of parameter values for the given
	 * parameters. Parameters values that cannot be initialized are just
	 * ignored. Optional parameters are considered.
	 * 
	 * @param startIndex
	 *            The index in the <code>parameters</code> that we should
	 *            process. This must be a valid index.
	 * @param parameters
	 *            The parameters in to process; must not be <code>null</code>.
	 * @return A collection (<code>Collection</code>) of combinations (<code>List</code>
	 *         of <code>Parameterization</code>).