Copy release notes for 2.4 into site
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Niall Pemberton
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<?xml version="1.0"?>
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<!--
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<document>
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<properties>
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<title>Upgrade from 2.3 to 2.4</title>
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<author email="dev@commons.apache.org">Commons Documentation Team</author>
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</properties>
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<body>
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<section name="Upgrade to 2.4">
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<p>
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These are the release notes and advice for upgrading Commons-Lang from
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version 2.3 to version 2.4.
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<source>
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INTRODUCTION:
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This document contains the release notes for the 2.4 version of Apache Commons Lang.
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Commons Lang is a set of utility functions and reusable components that should be of use in any Java environment.
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INCOMPATIBLE CHANGES WITH VERSION 2.3:
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INCOMPATIBLE CHANGES WITH VERSION 2.2:
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- Calling stop on a suspended StopWatch will no longer change the underlying time.
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It's very unlikely anyone was relying on that bug as a feature.
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ADDITIONAL INCOMPATIBLE CHANGES WITH VERSION 2.0:
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- The Nestable interface defines the method indexOfThrowable(Class).
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Previously the implementations checked only for a specific Class.
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Now they check for subclasses of that Class as well.
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For most situations this will be the expected behaviour (ie. its a bug fix).
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If it causes problems, please use the ExceptionUtils.indexOfThrowable(Class) method instead.
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Note that the ExceptionUtils method is available in v1.0 and v2.0 of commons-lang and has not been changed.
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(An alternative to this is to change the public static matchSubclasses flag on NestableDelegate.
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However, we don't recommend that as a long-term solution.)
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- The StopWatch class has had much extra validation added.
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If your code previously relied on unusual aspects, it may no longer work.
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- Starting with version 2.1, Ant version 1.6.x is required to build. Copy
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junit.jar to ANT_HOME/lib. You can get JUnit from http://www.junit.org. See the developer's guide
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for more details.
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DEPRECATIONS FROM 2.3 to 2.4:
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- ObjectUtils.appendIdentityToString(StringBuffer, Object) - has very odd semantics, use
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ObjectUtils.identityToString(StringBuffer, Object) instead.
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DEPRECATIONS FROM 2.2 to 2.3:
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- None
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DEPRECATIONS FROM 2.1 to 2.2:
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- None
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DEPRECATIONS FROM 2.0 to 2.1:
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- The enum package has been renamed to enums for JDK1.5 compilance.
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All functionality is identical, just the package has changed.
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This package will be removed in v3.0.
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- NumberUtils.stringToInt - renamed to toInt
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- DateUtils - four constants, MILLIS_IN_* have been deprecated as they were defined
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as int not long. The replacements are MILLIS_PER_*.
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BUG FIXES IN 2.4:
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* [LANG-76 ] - EnumUtils.getEnum() doesn't work well in 1.5
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* [LANG-328] - LocaleUtils.toLocale() rejects strings with only language+variant
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* [LANG-334] - Enum is not thread-safe
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* [LANG-346] - Dates.round() behaves incorrectly for minutes and seconds
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* [LANG-349] - Deadlock using ReflectionToStringBuilder
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* [LANG-353] - Javadoc Example for EqualsBuilder is questionable
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* [LANG-360] - Why does appendIdentityToString return null?
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* [LANG-361] - BooleanUtils toBooleanObject javadoc does not match implementation
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* [LANG-363] - StringEscapeUtils..escapeJavaScript() method did not escape '/' into '\/', it will make IE render page uncorrectly
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* [LANG-364] - Documentation bug for ignoreEmptyTokens accessors in StrTokenizer
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* [LANG-365] - BooleanUtils.toBoolean() - invalid drop-thru in case statement causes StringIndexOutOfBoundsException
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* [LANG-367] - FastDateFormat thread safety
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* [LANG-368] - FastDateFormat getDateInstance() and getDateTimeInstance() assume Locale.getDefault() won't change
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* [LANG-369] - ExceptionUtils not thread-safe
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* [LANG-372] - ToStringBuilder: MULTI_LINE_STYLE does not print anything from appendToString methods.
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* [LANG-376] - MultiFormatTest testWTF() does nothing useful
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* [LANG-380] - infinite loop in Fraction.reduce when numerator == 0
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* [LANG-381] - NumberUtils.min(floatArray) returns wrong value if floatArray[0] happens to be Float.NaN
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* [LANG-385] - http://commons.apache.org/lang/developerguide.html "Building" section is incorrect and incomplete
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* [LANG-393] - EqualsBuilder don't compare BigDecimals correctly
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* [LANG-399] - Javadoc bugs - cannot find object
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* [LANG-410] - Ambiguous / confusing names in StringUtils replace* methods
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* [LANG-412] - StrBuilder appendFixedWidth does not handle nulls
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* [LANG-414] - DateUtils.round() often fails
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IMPROVEMENTS IN 2.4:
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* [LANG-180] - adding a StringUtils.replace method that takes an array or List of replacement strings
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* [LANG-192] - Split camel case strings
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* [LANG-257] - Add new splitByWholeSeparatorPreserveAllTokens() methods to StringUtils
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* [LANG-269] - Shouldn't Commons Lang's StringUtils have a "common" string method?
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* [LANG-298] - ClassUtils.getShortClassName and ClassUtils.getPackageName and class of array
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* [LANG-321] - Add toArray() method to IntRange and LongRange classes
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* [LANG-322] - ClassUtils.getShortClassName(String) inefficient
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* [LANG-326] - StringUtils: startsWith / endsWith / startsWithIgnoreCase / endsWithIgnoreCase / removeStartIgnoreCase / removeEndIgnoreCase methods
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* [LANG-329] - Pointless synchronized in ThreadLocal.initialValue should be removed
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* [LANG-333] - ArrayUtils.toClass
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* [LANG-337] - Utility class constructor javadocs should acknowledge that they may sometimes be used, e.g. with Velocity.
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* [LANG-338] - truncateNicely method which avoids truncating in the middle of a word
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* [LANG-345] - Optimize HashCodeBuilder.append(Object)
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* [LANG-351] - Extension to ClassUtils: Obtain the primitive class from a wrapper
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* [LANG-356] - Add getStartTime to StopWatch
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* [LANG-362] - Add ExtendedMessageFormat to org.apache.commons.lang.text
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* [LANG-371] - ToStringStyle javadoc should show examples of styles
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* [LANG-374] - Add escaping for CSV columns to StringEscapeUtils
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* [LANG-375] - add SystemUtils.IS_OS_WINDOWS_VISTA field
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* [LANG-379] - Calculating A date fragment in any time-unit
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* [LANG-383] - Adding functionality to DateUtils to allow direct setting of various fields.
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* [LANG-402] - OSGi-ify Lang
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* [LANG-404] - Add Calendar flavour format methods to DateFormatUtils
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* [LANG-407] - StringUtils.length(String) returns null-safe length
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* [LANG-413] - Memory usage improvement for StringUtils#getLevenshteinDistance()
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</source>
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</p>
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</section>
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</body>
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</document>
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