Thanks for all your help and input.
> To: user@ant.apache.org > Subject: Re: Building with JDK 1.3. Which version of ANT? > From: bode...@apache.org > Date: Thu, 30 Jul 2009 12:11:45 +0200 > > On 2009-07-30, Rez P <pon...@hotmail.com> wrote: > > > I just got a successful build by using jdk 1.5, ant 1.7, and setting > > source & target attributes of the javac ant task to 1.3. Do you see > > any problem with this configuration as far as jdk 1.5 adding > > unwanted stuff to my generated class files as opposed to, if I set > > my entire environment to jdk 1.3 and making sure that the old > > project doesn't become polluted with any new tools or libraries? > > One thing is that you might use classes or methods present in Java 1.5 > but not in 1.3 - this will compile on Java5 but fail if you try to run > the code on 1.3. This may be possible to avoid if you are disciplined > enough 8-) > > Unfortunately there are problems more subtle than that. If Java5 (or > 1.4) have introduced new method overloads the compiler may choose one > that doesn't exist in 1.3. > > One example that I've encountered myself > StringBuffer.append(StringBuffer) which was added in Java 1.4. say > you have > > StringBuffer sb1 = new StringBuffer(); > StringBuffer sb2 = new StringBuffer(); > sb2.append(sb1); > > This will compile fine on both JDKs. javac of JDK 1.3 (and earlier) > will use append(Object), any later javac will use append(StringBuffer). > Code compiled on Java 1.4 or later will throw an exception when run on > Java 1.3 or earlier. > > These kinds of problems are way more difficult to catch when > "cross-compiling". > > Stefan > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@ant.apache.org > For additional commands, e-mail: user-h...@ant.apache.org > _________________________________________________________________ Windows Live™ Hotmail®: Search, add, and share the web’s latest sports videos. Check it out. http://www.windowslive.com/Online/Hotmail/Campaign/QuickAdd?ocid=TXT_TAGLM_WL_QA_HM_sports_videos_072009&cat=sports
