Different behaviour in hostedmode from that in the browser
Firstly, apologies as I'm opening a duplicate thread, I already
started this (http://groups.google.com/group/google-web-toolkit/
browse_thread/thread/bb98ca98a1b853ed/
914401f7acb74e8a#914401f7acb74e8a) but because of the title II thought
it might not have grabbed peoples attention so opening this one
instead.
While playing around with the soafaces gwt project I found some
strange behaviour w.r.t. instanceof and I'm wondering has anyone
noticed anything similar before.
When sending objects from the client to the server soafaces attempts
to wrap them in an object as arrays of Serializable and IsSerializable
objects ... The method that creates the wrapper takes as an argument
of an Object (and so also Object[])
e.g.
Object[] objArray = new Object[2];
objArray[0] = new MyType1();
objArray[1] = new MyType2();
MyType1 and MyType2 both implement IsSerializable and not
Serializable
The offending code is below, the first bunch of if statements seem to
be optimisations (are we sending a single object of a certain type) ,
the last if statement is where it wraps them in a single object.
The problem is that in Hosted mode the above obj evaluates to true for
(obj instanceof Serializable) where as in my compiled and deployed
code it falls through to the final if else (that evaluates to true)
and executes correctly. Is this a bug in the hosted mode
implementation ? I'm using gwt 1.7.1 with jdk 1.6.0_16
if (obj instanceof IsSerializable) {
proxy._Pojo = (IsSerializable) obj;
//Window.alert("here 1");
} else if (obj instanceof IsSerializable[]) {
proxy._PojoAr = (IsSerializable[]) obj;
//Window.alert("here 2");
} else if(obj instanceof Serializable) {
proxy._PojoSerial = (Serializable) obj;
//Window.alert("here 3");
} else if (obj instanceof Serializable[]) {
proxy._PojoSerialAr = (Serializable[]) obj;
//Window.alert("here 4");
} else if (obj instanceof Serializable[][]) {
proxy._PojoSerialArAr = (Serializable[][]) obj;
//Window.alert("here 5");
} else if (obj instanceof JSONObject) {
proxy._Json = ((JSONObject) obj).toString();
} else if(obj.getClass().getName().equals("[Ljava.lang.Object;"))
{
//Window.alert("here 6");
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Re: Anyone using soafaces for client server communication ?
On further investigation this seems to be a hosted mode issue and different behaviour of instanceof between hosted mode and complied versions of the code. Passing an Object[] called obj that has two objects that implement IsSerializable results in "obj instanceof Serializable" returning true in hosted mode but false in the compiled Javascript. See org.soafaces.services.client.rpcGenericDataUtil.createGenericDataWrapper (Object obj) in soafaces source. Anyone have a logical explanation why hosted mode thinks its a Serializable object ? Object is not Serializable right so neither should Object[] right ? On Oct 30, 7:04 pm, mike_mac wrote: > http://code.google.com/p/soafaces/ > > I've tried to get it working but it seems to be broken ... it claims > to allow passing of Object[] but when I try to use it (Object[] objs = > new Object[2]) I get a Serialization exception which seems to be from > generated code ... > > com.google.gwt.user.client.rpc.SerializationException: > [Ljava.lang.Object; > at > org.soafaces.services.client.rpc.UniversalClientRPC_TypeSerializer.raiseSerializationException > (transient > source for > soafaces.services.client.rpc.UniversalClientRPC_TypeSerializer:3133) > at > soafaces.services.client.rpc.UniversalClientRPC_TypeSerializer.serialize > (Native Method) > > It does work if I pass a single argument, anyone have any experience > using this ? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en -~--~~~~--~~--~--~---
Anyone using soafaces for client server communication ?
http://code.google.com/p/soafaces/ I've tried to get it working but it seems to be broken ... it claims to allow passing of Object[] but when I try to use it (Object[] objs = new Object[2]) I get a Serialization exception which seems to be from generated code ... com.google.gwt.user.client.rpc.SerializationException: [Ljava.lang.Object; at org.soafaces.services.client.rpc.UniversalClientRPC_TypeSerializer.raiseSerializationException (transient source for soafaces.services.client.rpc.UniversalClientRPC_TypeSerializer:3133) at soafaces.services.client.rpc.UniversalClientRPC_TypeSerializer.serialize (Native Method) It does work if I pass a single argument, anyone have any experience using this ? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en -~--~~~~--~~--~--~---
Re: Problems with 1.7.1 -noserver hosted mode on Linux
Its not the war vs maven webapp issue is it ? the eclipse plugin expects a war dir and doesn't work with the maven default dir (webapp) ... Try running it from the commandline manually setting the classpath to see if it works. If it does you can simply add it to your run/debug configurations as a Java Application. On Oct 28, 2:36 pm, Jeff Chimene wrote: > The problem may be that .16 point release doesn't play well w/ GWT. The > symptoms are usually that the debugger doesn't stop at a breakpoint, not > that the entry point is never called. I think you have to downgrade to at > least .14 Search this list for the JDK version. It's been discussed several > times. > > On Wed, Oct 28, 2009 at 2:33 AM, bysse wrote: > > > I'm having huge problems getting hosted mode to work under Linux with > > the -noserver flag. The module entry point is never called and no > > error message is show / logged. I've tried to start it through both > > the maven plugin and the eclipse plugin with the same results. > > > The project works fine in a windows environment with the same setup. > > So there must be something wrong with the Linux SDK. Does anyone have > > similar problems? > > > My setup is: > > Linux x64 (Ubuntu 9.04) > > Java 1.6.0.16 32bit > > GWT SDK 1.7.1 > > Eclipse 3.5 > > Google Plugin 1.1.2 > > JBoss 4.2.2 and 4.2.3 > > Firefox 3.0.14 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en -~--~~~~--~~--~--~---
Re: hosted mode debugging with -noserver in eclipse
Wow ... thanks for explaining that, at least I know I wasn't going crazy ! Maybe a small fix to look for the Maven default dir (webapp) in a future release ? :-) Actually it works fine when launched as a java application from inside eclipse, it just means I have to manage the dependent jars manually. Being able to make a change and just hit refresh is awesome ! On Oct 8, 4:38 pm, Keith Platfoot wrote: > Hi Mike, > I think your issue has to do with certain changes made to GWT in version > 1.6. Before 1.6, the GWTShell class was used to launch applications in > hosted mode. In 1.6, the default structure of GWT projects was changed to > make it more similar to Java web apps. By convention, GWT projects now > assume the existence of a directory named "war" which contains the contents > of the deployed WAR file. This includes source files, such as your web.xml > and any public HTML pages. The WAR directory also contains subdirectories > with the compiled JavaScript output of each GWT module. In 1.6 and later a > new class, HostedMode, replaces the older GWTShell as the default class for > launching hosted mode. > > The plugin supports GWT versions both older and newer than 1.6. It uses > some heuristics to determine whether to launch applications with the > GWTShell or HostedMode class. It sounds like in your case, you are able to > use HostedMode from the command line, but when you launch from Eclipse, the > plugin is using GWTShell... is that correct? > > If so, I have two follow-up questions. First, does your project contain a > WAR directory named "war"? I know that many maven users use a different > naming convention, but as of right now, the plugin does *not* support > configuring the name of the WAR directory (it must be "war"). If yours is > named differently, your best bet might be to try to create a symlink named > "war" pointing to your actual WAR folder. I haven't actually tested that > scenario, but it *should* work. > > Once your project has a proper "war" directory (or symlink), the second > thing to check is whether your project is tagged as a Google Web Application > project. This won't actually show up in the Eclipse UI, but if you look at > your project's .project file, you should see the following tag nested under > > > com.google.gdt.eclipse.core.webAppNature > > If it's *not *there, go ahead and add it, and then restart Eclipse. Then > try launching the project again, and see what happens. Let me know if you > still run into problems. > > Keith > > On Wed, Oct 7, 2009 at 12:12 PM, mike_mac wrote: > > > Just to follow up on this ... this seems to be the eclipse plugin, > > I've managed to get host mode running from the command line and it > > works. > > > The weird thing is, it DOES work with a small war project that I > > built, deployed on jboss and ran the hosted mode -noserver option from > > eclipse via the plugin. Our more complicated maven built war (part of > > a larger ear) doesn't and it seems to classpath issue but I don't know > > how to debug the eclipse plugin. > > > I've added the command line startup command into my eclipse run so I > > can debug but it would be better if the plugin worked :( > > > I did notice that the usage for plugin was different from commandline > > options so there could well be a bug here (i.e. theres a possiblity > > I'm not going mad). GWTShell vs HostedMode ?? > > > Unknown argument: -blah > > Google Web Toolkit 1.7.0 > > GWTShell [-noserver] [-port port-number | "auto"] [-whitelist > > whitelist-string] [-blacklist blacklist-string] [-logLevel level] [- > > gen dir] [-style style] [-ea] [-out dir] [url] > > > where > > -noserver Prevents the embedded web server from running > > -port Specifies the TCP port for the embedded web server > > (defaults to ) > > -whitelist Allows the user to browse URLs that match the specified > > regexes (comma or space separated) > > -blacklist Prevents the user browsing URLs that match the specified > > regexes (comma or space separated) > > -logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, > > DEBUG, SPAM, or ALL > > -gen The directory into which generated files will be written > > for review > > -style Script output style: OBF[USCATED], PRETTY, or DETAILED > > (defaults to OBF) > > -ea Debugging: causes the compiled output to check assert > > statements. > > -out The directory to write output files into (defaults to > > current) > > and > > url
Re: GWT 1.7 Hosted mode Wont create GWT widgets
Well I've just opened another thread with what sounds like a similar (but different) problem ... http://groups.google.com/group/google-web-toolkit/browse_thread/thread/34b7bbcf6057a23d Try running the app in hosted mode from the command line ... if it works you can simply launch it from inside eclipse as a java app. I know it doesn't solve your problem but it may at least allow you to keep developing. On Oct 7, 1:10 pm, Patrick Corbett wrote: > Hello, > > I am having a problem that started just out of the blue. my project > has been working fine for months however today all of a sudden it > stopped running in hosted mode. > > I can still compile the project and when run on my tomcat it worked > fine. I have determined that it is not contained to simply the > project i was working on all previous and new proejects fail to > start. only basic HTML code is shown in the hosted browser and it > wont process the java code in the entry point. > > If i set a break point within the onModuleLoad method it is never > triggered. > > I am using eclispe 3.4 with GWT 1.7, also tried 1.6.4 and 1.7.1 with > no effect. using the Google plugin > > Thanks > > Patrick --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en -~--~~~~--~~--~--~---
Re: hosted mode debugging with -noserver in eclipse
Just to follow up on this ... this seems to be the eclipse plugin, I've managed to get host mode running from the command line and it works. The weird thing is, it DOES work with a small war project that I built, deployed on jboss and ran the hosted mode -noserver option from eclipse via the plugin. Our more complicated maven built war (part of a larger ear) doesn't and it seems to classpath issue but I don't know how to debug the eclipse plugin. I've added the command line startup command into my eclipse run so I can debug but it would be better if the plugin worked :( I did notice that the usage for plugin was different from commandline options so there could well be a bug here (i.e. theres a possiblity I'm not going mad). GWTShell vs HostedMode ?? Unknown argument: -blah Google Web Toolkit 1.7.0 GWTShell [-noserver] [-port port-number | "auto"] [-whitelist whitelist-string] [-blacklist blacklist-string] [-logLevel level] [- gen dir] [-style style] [-ea] [-out dir] [url] where -noserver Prevents the embedded web server from running -port Specifies the TCP port for the embedded web server (defaults to ) -whitelist Allows the user to browse URLs that match the specified regexes (comma or space separated) -blacklist Prevents the user browsing URLs that match the specified regexes (comma or space separated) -logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL -genThe directory into which generated files will be written for review -style Script output style: OBF[USCATED], PRETTY, or DETAILED (defaults to OBF) -ea Debugging: causes the compiled output to check assert statements. -outThe directory to write output files into (defaults to current) and url Automatically launches the specified URL versus java -cp gwt-dev-.jar com.google.gwt.dev.HostedMode Missing required argument 'module[s]' Google Web Toolkit 1.7.0 HostedMode [-noserver] [-port port-number | "auto"] [-whitelist whitelist-string ] [-blacklist blacklist-string] [-logLevel level] [-gen dir] [-style style] [-ea ] [-server servletContainerLauncher] [-startupUrl url] [-war dir] [- extra dir] [ -workDir dir] [-localWorkers count] module[s] where -noserver Prevents the embedded web server from running -port Specifies the TCP port for the embedded web server (defaults to ) -whitelist Allows the user to browse URLs that match the specified regexes (comma or space separated) -blacklist Prevents the user browsing URLs that match the specified regexes (comma or space separated) -logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL -gen The directory into which generated files will be written for review -style Script output style: OBF[USCATED], PRETTY, or DETAILED (defaults to OBF) -eaDebugging: causes the compiled output to check assert statements. -serverSpecifies a different embedded web server to run (must implement ServletContainerLauncher) -startupUrlAutomatically launches the specified URL -war The war directory to write output files into (defaults to war) -extra The directory into which extra, non-deployed files will be written -workDir The compiler work directory (must be writeable; defaults to a system temp dir) -localWorkers Specifies the number of local workers to use when compiling permutations and module[s] Specifies the name(s) of the module(s) to host On Oct 7, 11:02 am, mike_mac wrote: > Hi ... > I'm trying to get hosted mode debugging running using Jboss as the > server instead of tomcat and I can't get it working ... > > I've followed the instructions here > ...http://code.google.com/webtoolkit/doc/1.6/FAQ_DebuggingAndCompiling.h... > > But when I try to run the google web tool kit development shell with > eclipse I'm getting > [ERROR] Unable to find 'main.gwt.xml' on your classpath; could be a > typo, or maybe you forgot to include a classpath entry for source? > > I've specified Main as my entry point module in the gwt tab of the > launch configuration. Yes I did notice the case difference in the > name, the module definition was changed to main with > and the url was /main/ > main.html ... > I've tried renamining the gwt.xml to main.gwt.xml but that had no > effect. > > The root src dir with the gwt.xml is on the classpath (in the > classpath tab). > > I've tried explcitly setting the directory with the Main.gwt.xml into > the classpath which does indeed let eclipse/gwt find the xml file but > then I get lots of errors along the lines of > > The declared package > "com.company.product.web.client.uicomponent.menu" does not match the > expected package "c
hosted mode debugging with -noserver in eclipse
Hi ... I'm trying to get hosted mode debugging running using Jboss as the server instead of tomcat and I can't get it working ... I've followed the instructions here ... http://code.google.com/webtoolkit/doc/1.6/FAQ_DebuggingAndCompiling.html#How_do_I_use_my_own_server_in_hosted_mode_instead_of_GWT%27s But when I try to run the google web tool kit development shell with eclipse I'm getting [ERROR] Unable to find 'main.gwt.xml' on your classpath; could be a typo, or maybe you forgot to include a classpath entry for source? I've specified Main as my entry point module in the gwt tab of the launch configuration. Yes I did notice the case difference in the name, the module definition was changed to main with and the url was /main/ main.html ... I've tried renamining the gwt.xml to main.gwt.xml but that had no effect. The root src dir with the gwt.xml is on the classpath (in the classpath tab). I've tried explcitly setting the directory with the Main.gwt.xml into the classpath which does indeed let eclipse/gwt find the xml file but then I get lots of errors along the lines of The declared package "com.company.product.web.client.uicomponent.menu" does not match the expected package "client.uicomponent.menu" I'm stumped ... could it be the rename-to="main" thats confusing it ? anyone with any ideas ? I'm able to run some sample projects in the embedded server no problem so I can only think that its something to do with running in -noserver option but I'm lost. I'm using "Google App Engine for Java 1.2.5 SDK Bundle for Eclipse 3.5" with GWT 1.7 Everything compiles with Maven and runs ok on JBoss ... --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en -~--~~~~--~~--~--~---
