JRun-Talk-List V1 #51

Hi folks,        Just todaywhen I tried to start the Jrun Default server I began getting this error. It was an alert box with Java Virtual Machine Launcher as the dialog title and "Cannot find the main class error. Program will exit!". Anyone got any ideas? Thanks Mark. I'm picked up the book "core SERVLETS and JAVAsERVER PAGES" from Marty Hall and find it an excellent book. For reader without Java background, the sample code is explained. If you know Java, reading the code is usually enough. [mailto:JRun-Talk-request@houseoffusion.com]On Behalf Of JRun-Talk Sent: Monday, July 30, 2001 7:51 AM To: JRun-Talk-List@houseoffusion.com Subject: JRun-Talk-List V1 #51 JRun-Talk-List                 Mon, 30 Jul 2001           Volume 1 : Number 51 In this issue:         Re: Learning path         Name/password cannot be different than already specified in properties Message-ID: <DAV14iowsNgiSNdltaO00005d6e@hotmail.com> Excellent, Charlie is right on target. I have spent much money picking up books only to find them inadequate for what I need to do. Perhaps this is a good opportunity for this community to take the initiative to write a book, collaboratively, that addresses the need (we have been waiting for that book that has it all).  In addition, code good examples of actual sites out there (if permitted) can also enhance the learning curve. > Bert, I know you're asking for materials that "aren't just tutorial but also > design and case study", but since others have asked about the general > transition from ASP (or CF, PHP, Perl, etc.) to servlets/JSP, here are some > thoughts that cover a little of all three. Folks really do need to learn > quite a lot to be truly effective: Java, as a base, for sure, and of course > J2EE (servlets, JSP's and EJB's, at least) in general. > > A big challenge, I find, is that the beginning Java books often focus on > teaching client-side Java for a substantial percentage of the book. While > books like Core Java 2 and Beginning Java 2 are highly commended and rightly > so, they have upwards of 40% or more on applets, swing, awt, etc. It's not a > bad thing, but it reflects an old mentality that "surely anyone who wants to > learn java wants to build applets and client applications", which of course > folks making the server-side transition may not. Thinking in Java, to its > credit, devotes only a single chapter each to client- and server-side > development, being especially solid at the core of java without a focus on > either "side" of the platform. > > On the other hand, most J2EE-level books not only presume you already know > java but they're generally focused on teaching web app development to those > experienced java programmers. As such, not only must you know Java to really ----- Excess quoted text cut - see Original Post for more ----- only, > etc. > > Among the more popular resources for server-side development are Core > Servlets and JSP, Professional Java Server Programming J2EE Ed., O'Reilly's > Enterprise JavaBeans, and others. Of course, Sun has its J2EE tutorial > (http://java.sun.com/j2ee/tutorial/index.html), the J2EE Blueprints, and > many other resources. > > At least, in the case of a real walkthrough, the Java Pet Store example from > Sun is a reasonably complete application and the BluePrints book (online and ----- Excess quoted text cut - see Original Post for more ----- Jacquie > Barker's "Beginning Java Objects" (Wrox). While some may argue against it as > a first java book, I think for the right audience it's great for just that. > And this audience may be especially well-suited to its approach. I found no > other book did as good a job at putting OO (programming AND design AND > implementation--and even UML and more) all into perspective. > > Then, there's the whole matter of patterns. You won't get far before > discussions of "observers", "proxies", "factories", "facades" and lots more > start cropping up. Of course, the seminal work is "Design Patterns" from > Gamma, et al (with its distinct C++ focus, though still foundational for all > OO programmers), and one of its co-authors wrote "Pattern Hatching". There > are still other books that lead one through use of design patterns in Java. > Then there are still more "architecture patterns", including J2EE patterns > covered in a book ("Core J2EE Patterns") and a sun site > (http://java.sun.com/j2ee/blueprints/design_patterns/index.html). > > There's clearly a need in the market for something to address the audience > of folks making the transition from other server-side scripting languages to > JSP/Servlets, etc, especially if they're also new to Java. For now, you have > to pick and choose. > > On the training front, Macromedia's recognized this need with their split of > the former "servlets, jsp and java" class into a new "java for web > developers" class focused on just the kind of core java needed to get > started, then offering "fasttrack to jsp" to cover JSP basics, and a coming > "Building j2ee applications with JRun" class (still in the works) to get > more into JDBC, servlets, javabeans, EJBs, and more. > > Then there are sites like jspinsider.com, jguru.com, theserverside.com, and > others, as well as magazines like Java Developers Journal, Java Pro, and > Java Report. > > I'm sure others will have still more suggested resources, and I'd certainly ----- Excess quoted text cut - see Original Post for more ----- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Structure your ColdFusion code with Fusebox. Get the official book at http://www.fusionauthority.com/bkinfo.cfm

It looks like a classpath error.  Check to see if you have modified any config files or uninstalled any JVMs. Hi folks,        Just todaywhen I tried to start the Jrun Default server I began getting this error. It was an alert box with Java Virtual Machine Launcher as the dialog title and "Cannot find the main class error. Program will exit!". Anyone got any ideas? Thanks Mark. I'm picked up the book "core SERVLETS and JAVAsERVER PAGES" from Marty Hall and find it an excellent book. For reader without Java background, the sample code is explained. If you know Java, reading the code is usually enough. [mailto:JRun-Talk-request@houseoffusion.com]On Behalf Of JRun-Talk Sent: Monday, July 30, 2001 7:51 AM To: JRun-Talk-List@houseoffusion.com Subject: JRun-Talk-List V1 #51 JRun-Talk-List                 Mon, 30 Jul 2001           Volume 1 : Number 51 In this issue:         Re: Learning path         Name/password cannot be different than already specified in properties Message-ID: <DAV14iowsNgiSNdltaO00005d6e@hotmail.com> Excellent, Charlie is right on target. I have spent much money picking up books only to find them inadequate for what I need to do. Perhaps this is a good opportunity for this community to take the initiative to write a book, collaboratively, that addresses the need (we have been waiting for that book that has it all).  In addition, code good examples of actual sites out there (if permitted) can also enhance the learning curve. > Bert, I know you're asking for materials that "aren't just tutorial but also > design and case study", but since others have asked about the general > transition from ASP (or CF, PHP, Perl, etc.) to servlets/JSP, here are some > thoughts that cover a little of all three. Folks really do need to learn > quite a lot to be truly effective: Java, as a base, for sure, and of course > J2EE (servlets, JSP's and EJB's, at least) in general. > > A big challenge, I find, is that the beginning Java books often focus on > teaching client-side Java for a substantial percentage of the book. While > books like Core Java 2 and Beginning Java 2 are highly commended and rightly > so, they have upwards of 40% or more on applets, swing, awt, etc. It's not a > bad thing, but it reflects an old mentality that "surely anyone who wants to > learn java wants to build applets and client applications", which of course > folks making the server-side transition may not. Thinking in Java, to its > credit, devotes only a single chapter each to client- and server-side > development, being especially solid at the core of java without a focus on > either "side" of the platform. > > On the other hand, most J2EE-level books not only presume you already know > java but they're generally focused on teaching web app development to those > experienced java programmers. As such, not only must you know Java to really ----- Excess quoted text cut - see Original Post for more ----- only, > etc. > > Among the more popular resources for server-side development are Core > Servlets and JSP, Professional Java Server Programming J2EE Ed., O'Reilly's > Enterprise JavaBeans, and others. Of course, Sun has its J2EE tutorial > (http://java.sun.com/j2ee/tutorial/index.html), the J2EE Blueprints, and > many other resources. > > At least, in the case of a real walkthrough, the Java Pet Store example from > Sun is a reasonably complete application and the BluePrints book (online and ----- Excess quoted text cut - see Original Post for more ----- Jacquie > Barker's "Beginning Java Objects" (Wrox). While some may argue against it as > a first java book, I think for the right audience it's great for just that. > And this audience may be especially well-suited to its approach. I found no > other book did as good a job at putting OO (programming AND design AND > implementation--and even UML and more) all into perspective. > > Then, there's the whole matter of patterns. You won't get far before > discussions of "observers", "proxies", "factories", "facades" and lots more > start cropping up. Of course, the seminal work is "Design Patterns" from > Gamma, et al (with its distinct C++ focus, though still foundational for all > OO programmers), and one of its co-authors wrote "Pattern Hatching". There > are still other books that lead one through use of design patterns in Java. > Then there are still more "architecture patterns", including J2EE patterns > covered in a book ("Core J2EE Patterns") and a sun site > (http://java.sun.com/j2ee/blueprints/design_patterns/index.html). > > There's clearly a need in the market for something to address the audience > of folks making the transition from other server-side scripting languages to > JSP/Servlets, etc, especially if they're also new to Java. For now, you have > to pick and choose. > > On the training front, Macromedia's recognized this need with their split of > the former "servlets, jsp and java" class into a new "java for web > developers" class focused on just the kind of core java needed to get > started, then offering "fasttrack to jsp" to cover JSP basics, and a coming > "Building j2ee applications with JRun" class (still in the works) to get > more into JDBC, servlets, javabeans, EJBs, and more. > > Then there are sites like jspinsider.com, jguru.com, theserverside.com, and > others, as well as magazines like Java Developers Journal, Java Pro, and > Java Report. > > I'm sure others will have still more suggested resources, and I'd certainly ----- Excess quoted text cut - see Original Post for more ----- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Structure your ColdFusion code with Fusebox. Get the official book at http://www.fusionauthority.com/bkinfo.cfm