serializableTypes

[pablo.mmarcondes]

Hi guys, Im trying to serialize a class using the ErraiApp.properties property errai.bus.serializableTypes, but I'm getting this error:

[ERROR] Line 238: The nested type somethinghere.response.PopupMessage$MESSAGE_CODE cannot be referenced using its binary name

[INFO]                [ERROR] Line 303: The nested type somethinghere.response.PopupMessage$MESSAGE_CODE cannot be referenced using its binary name

[INFO]       [ERROR] Unable to find recently-generated type 'org.jboss.errai.bus.client.ext.ExtensionsLoaderImpl

MESSAGE_CODE is an enum inside PopupMessage, does the errai serialization supports enums?

Thanks,

Pablo

[pablo.mmarcondes]

Hi guys, I think I've found a problem with this serializableTypes thing, when using it with classes without enum, it passes the compilation, but at deploy time I got this:

Caused by: java.lang.ClassNotFoundException: errai.bus.serializableTypes

        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

        at java.security.AccessController.doPrivileged(Native Method)

        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

        at org.glassfish.web.loader.WebappClassLoader.findClass(WebappClassLoader.java:959)

        at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1430)

        at java.lang.Class.forName0(Native Method)

        at java.lang.Class.forName(Class.java:169)

        at org.jboss.errai.bus.server.service.bootstrap.DiscoverServices.execute(DiscoverServices.java:210)

        ... 98 more

and looking at the code it seems that this code :

Enumeration<String> keys = bundle.getKeys();

while(keys.hasMoreElements())

        {

          String key = keys.nextElement();

          if(key.equals(ErraiServiceConfigurator.CONFIG_ERRAI_SERIALIZABLE_TYPE))

          {

            for (String s : key.split(" ")) {

              try {

                Class<?> cls = Class.forName(s.trim());

should be something like this:

Enumeration<String> keys = bundle.getKeys();

while(keys.hasMoreElements())

        {

          String key = keys.nextElement();

          if(key.equals(ErraiServiceConfigurator.CONFIG_ERRAI_SERIALIZABLE_TYPE))

          {

            String value = bundle.getString(key);

            for (String s : value.split(" ")) {

              try {

                Class<?> cls = Class.forName(s.trim());

what do you think?

[cbrock]

Interesting.  I'm responding from my cellphone right now. I will definitely look into this tomorrow. Can you log a JIRA?

[pablo.mmarcondes]

I've found that Heiko Braun has created this issue, but why is it associated to CDI?

Heiko Braun created ERRAI-82 (Provide an API to register serializable types from external context (CDI))

[cbrock]

That's actually a separate issue.   But I can now confirm the enum issue is fixed in trunk.  However, all enums must be exposed just like normal classes with @ExposeEntity or in the properties file per the docs, otherwise you will experience a failure.

[pablo.mmarcondes]

I saw your implementation, but I think the DiscoverServices class is not correct by this line:

for (String s : key.split(" ")) {

applying this diff, Ive managed to get the external classes recognized:

Index: src/main/java/org/jboss/errai/bus/server/service/bootstrap/DiscoverServices.java

===================================================================

--- src/main/java/org/jboss/errai/bus/server/service/bootstrap/DiscoverServices.java     (revision 1602)

+++ src/main/java/org/jboss/errai/bus/server/service/bootstrap/DiscoverServices.java     (working copy)

@@ -219,7 +219,8 @@

                 while (keys.hasMoreElements()) {

                     String key = keys.nextElement();

                     if (key.equals(ErraiServiceConfigurator.CONFIG_ERRAI_SERIALIZABLE_TYPE)) {

-                        for (String s : key.split(" ")) {

+                        String value = bundle.getString(key);

+                        for (String s : value.split(" ")) {

                             try {

                                 Class<?> cls = Class.forName(s.trim());

                                 log.info("Marked " + cls + " as serializable.");

but the Enum serialization is not working yet as it should be, I've got this error:

[ERROR] Type annotated with @ExposeEntity does not expose a default constructor
[INFO] java.lang.NoSuchMethodException: com.ati.sglweb.sglclient.shared.dto.basics.ExecutedActionType.<init>()
[INFO] at java.lang.Class.getConstructor0(Class.java:2706)
[INFO] at java.lang.Class.getConstructor(Class.java:1657)
[INFO] at org.jboss.errai.bus.rebind.BusClientConfigGenerator.generateMarshaller(BusClientConfigGenerator.java:123)
[INFO] at org.jboss.errai.bus.rebind.BusClientConfigGenerator.generate(BusClientConfigGenerator.java:94)

Can someone help me on these, please?

Thanks in advance,

Pablo

[cbrock]

So you are configuring the type in a properties file or are you using @ExposeEntity?

[pablo.mmarcondes]

This error occur when Im using the properties file, because the classes are on an external jar

[cbrock]

Should be fixed now.

[pablo.mmarcondes]

We will test it today and give a feedback, thanks!

[pablo.mmarcondes]

Sorry for the delay, but with the svn code from today, its not working for enums yet.

[ERROR] org.jboss.errai.bus.server.ErraiBootstrapFailure: org.jboss.errai.bus.rebind.GenerationException: Type annotated with @ExposeEntity does not expose a default constructor
[ERROR] at org.jboss.errai.bus.rebind.BusClientConfigGenerator.generate(BusClientConfigGenerator.java:97)
[ERROR] at org.jboss.errai.bus.rebind.ExtensionProxyGenerator.generateExtensions(ExtensionProxyGenerator.java:128)
[ERROR] at org.jboss.errai.bus.rebind.ExtensionProxyGenerator.generateClass(ExtensionProxyGenerator.java:105)
[ERROR] at org.jboss.errai.bus.rebind.ExtensionProxyGenerator.generate(ExtensionProxyGenerator.java:66)
[ERROR] at com.google.gwt.dev.javac.StandardGeneratorContext.runGenerator(StandardGeneratorContext.java:418)
[ERROR] at com.google.gwt.dev.cfg.RuleGenerateWith.realize(RuleGenerateWith.java:38)
[ERROR] at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.tryRebind(StandardRebindOracle.java:108)
[ERROR] at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.rebind(StandardRebindOracle.java:54)
[ERROR] at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:154)
[ERROR] at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:143)
[ERROR] at com.google.gwt.dev.Precompile$DistillerRebindPermutationOracle.getAllPossibleRebindAnswers(Precompile.java:317)
[ERROR] at com.google.gwt.dev.jdt.WebModeCompilerFrontEnd.doFindAdditionalTypesUsingRebinds(WebModeCompilerFrontEnd.java:95)
[ERROR] at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox$CompilerImpl.process(AbstractCompiler.java:200)
[ERROR] at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:444)
[ERROR] at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox$CompilerImpl.compile(AbstractCompiler.java:123)
[ERROR] at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox$CompilerImpl.compile(AbstractCompiler.java:234)
[ERROR] at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox$CompilerImpl.access$200(AbstractCompiler.java:109)
[ERROR] at com.google.gwt.dev.jdt.AbstractCompiler.compile(AbstractCompiler.java:522)
[ERROR] at com.google.gwt.dev.jdt.BasicWebModeCompiler.getCompilationUnitDeclarations(BasicWebModeCompiler.java:112)
[ERROR] at com.google.gwt.dev.jdt.WebModeCompilerFrontEnd.getCompilationUnitDeclarations(WebModeCompilerFrontEnd.java:47)
[ERROR] at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.precompile(JavaToJavaScriptCompiler.java:422)
[ERROR] at com.google.gwt.dev.jjs.JavaScriptCompiler.precompile(JavaScriptCompiler.java:32)
[ERROR] at com.google.gwt.dev.Precompile.precompile(Precompile.java:522)
[ERROR] at com.google.gwt.dev.Precompile.precompile(Precompile.java:414)
[ERROR] at com.google.gwt.dev.Compiler.run(Compiler.java:201)
[ERROR] at com.google.gwt.dev.Compiler$1.run(Compiler.java:152)
[ERROR] at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:87)
[ERROR] at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:81)
[ERROR] at com.google.gwt.dev.Compiler.main(Compiler.java:159)
[ERROR] Caused by: org.jboss.errai.bus.rebind.GenerationException: Type annotated with @ExposeEntity does not expose a default constructor
[ERROR] at org.jboss.errai.bus.rebind.BusClientConfigGenerator.generateMarshaller(BusClientConfigGenerator.java:128)
[ERROR] at org.jboss.errai.bus.rebind.BusClientConfigGenerator.generate(BusClientConfigGenerator.java:94)
[INFO] [ERROR] Error generating extensions

[cbrock]

Would you be willing to post some example code?  I can't seem to reproduce this.

[pablo.mmarcondes]

I will do that, we've got comet working fine with atmosphere-gwt-comet, but we want to make it work with errai too, so we can compare both.

[pablo.mmarcondes]

Hi,

We've found that using your example project errai-bus-demos-serialization, and configuring it to use serialization from properties config file:

adding errai.bus.serializableTypes=org.errai.samples.serialization.client.model.RecordType to file ErraiApp.properties

we could reproduce the error we are facing with our project.

Can you try that on your side?

Regards

[cbrock]

I'll definitely look at this.