If the new class (from b22) has different methods signeture or uses classes that the old build (18) wasnot using then he will have classnot found exception...
> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Wednesday, August 13, 2003 6:01 PM > To: Uzi Refaeli > Subject: Re: [OT] Java linkage > > > import caluses are meaningless here. They are just a > syntactic sugar to > let programmers avoid having to type the full package names > every time they > reffer to a class. > The class signature also has nothing to do with this since as > I understand > the question Tal wants to know whether all the > classes/methods used from > within the new version of the class are available in the classpath at > runtime, > he can, for instance, use some new com.company.xxx.AClass.AMethod() > from the new version. > (Not to mention dynamic class loading with reflection and > Class.forName()). > > I myself am not aware of such a tool. If you don't have dynamic class > loading > in the code then you might want to look at some Apache Java > (Jakarta) side > projects like BCEL (http://jakarta.apache.org/bcel/index.html) for > something to > base your own code analysis on. (e.g. run a Java program with > the relevant > CLASSPATH, extract reffered method calls and class names from the code > and try "Class.forName()" on them. Then make sure that the > found class comes > from a relevant CLASSPATH component. In addition use > reflection to lookup > the particular method/constructor within the loaded class). > > --Amos > > Uzi Refaeli wrote: > > >Donot know about such a tool but you can check that: > >* The new class dose not import classes that are not in the > application cp. > >* The class signature is the same. > > > >good luck > > > > > > > >>From: Tal Achituv [mailto:[EMAIL PROTECTED] > >>Sent: Wednesday, August 13, 2003 5:14 PM > >>To: 'Ron Gidron' > >>Cc: '[EMAIL PROTECTED]' > >>Subject: RE: [OT] Java linkage > >> > >> > >>Yes, When I wrote the mail I was confused myself - as there > is no real > >>"link" in java... > >> > >>here's the problem: > >> > >>I have to supply a patch for a software build 18, and am > >>currently working > >>on build 22 of the same software. > >> > >>I wonder if I can just give them the class from the b22 and > >>put it instead > >>the patch requiring class of the b18... > >> > >>Now I need to wait until runtime to see if this class really > >>fits... :-) > >> > >>seems like I'm not the first to hit this problem... as in the > >>C world you > >>simply "link"... > >> > >>(I know the class from b22 compiles... I don't know if it > >>"links" with all > >>the others correctly... [lets say a method signature changed])... > >> > >>Do you know if there is a "solution" in the industry?? > >> > >>Tal. > >> > >>-----Original Message----- > >>From: Ron Gidron [mailto:[EMAIL PROTECTED] > >>Sent: Wednesday, August 13, 2003 6:04 PM > >>To: 'Tal Achituv' > >>Subject: RE: [OT] Java linkage > >> > >> > >>How do you mean **links**? > >>AFAIK Class files are independent and are executed as such > by the JVM, > >>There is no traditional linkage done in Java and there is no > >>linker. The JVM > >>is responsible to download all the referred classes that you > >>class refers to > >>AT RUNTIME... > >> > >>I hope I understood the question well, please feel free to > >>ask again or > >>elaborate your previous question. > >> > >>Regards > >>Ron > >> > >>-----Original Message----- > >>From: [EMAIL PROTECTED] > >> > >> > >[mailto:[EMAIL PROTECTED] > >On Behalf Of Tal Achituv > >Sent: Wednesday, August 13, 2003 4:00 PM > >To: '[EMAIL PROTECTED]' > >Subject: [OT] Java linkage > > > >Hi all > > > >Is there a tool / method to check if a compiles java object > (class) links > >correctly? > > > >Any thoughts? > > > >Thanks, > >Tal Achituv. > > > >================================================================= > >To unsubscribe, send mail to [EMAIL PROTECTED] with > >the word "unsubscribe" in the message body, e.g., run the command > >echo unsubscribe | mail [EMAIL PROTECTED] > > > >================================================================= > >To unsubscribe, send mail to [EMAIL PROTECTED] with > >the word "unsubscribe" in the message body, e.g., run the command > >echo unsubscribe | mail [EMAIL PROTECTED] > > > > > >================================================================= > >To unsubscribe, send mail to [EMAIL PROTECTED] with > >the word "unsubscribe" in the message body, e.g., run the command > >echo unsubscribe | mail [EMAIL PROTECTED] > > > > > > > >---------- Your email is protected by Mailshell ---------- > >To block spam or change delivery options: > http://www.mailshell.com/control.html?a=blshp8bbumg87yq1j9157q v2pz6_58z35eg0 > >FreshAddress.com http://rd.mailshell.com/ad482 >Earn up to $3 for each of your friends who signs up with Mailshell! >http://rd.mailshell.com/sp5 > > ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
