Re: compilerArgs setProperty multi values - [ERROR] Unable to parse JavaScript

We do both: release compiles have a permutation with native stack traces for normal use, plus a "debug" version which includes emulated stack traces. We deploy both of them, but don't tell real users about the debug version unless there's a good reason to do so.

Sometimes it's useful for us to be able to switch to the debug compile when you have a repeatable error to get a higher quality stack trace. It means our internal releases for testing are identical to what gets released externally.

On Thu, Nov 30, 2017 at 8:49 AM, Jens <jens.nehlmeier@gmail.com> wrote:

OMG 50%, hehe maybe I did something wrong last time I was checking the difference. I need to try it again. Thanks!

Yes it is always twice the size because GWT compiler will insert an additional line of code to capture stack frames for each line of your code. For small apps it is not that dramatic but for example our app would grow multiple mega bytes and execution will noticeably slow down. Thus we don't use emulated stack traces. But event without it we can still find the reason for an exception relatively quickly.

-- J.

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JsInterop noUiSlider widget

Hi All, 

Please can someone guide me how to create a widget from this library :

https://refreshless.com/nouislider/

Thanks in advance

Best regards. 

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Re: compilerArgs setProperty multi values - [ERROR] Unable to parse JavaScript

OMG 50%, hehe maybe I did something wrong last time I was checking the difference. I need to try it again. Thanks!

Yes it is always twice the size because GWT compiler will insert an additional line of code to capture stack frames for each line of your code. For small apps it is not that dramatic but for example our app would grow multiple mega bytes and execution will noticeably slow down. Thus we don't use emulated stack traces. But event without it we can still find the reason for an exception relatively quickly.

-- J.

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Re: compilerArgs setProperty multi values - [ERROR] Unable to parse JavaScript

OMG 50%, hehe maybe I did something wrong last time I was checking the difference. I need to try it again. Thanks!

On Thursday, November 30, 2017 at 8:34:33 AM UTC+1, Freddy Boucher wrote:

Yes I would say it twice the size with emulated:

For example on my demo app https://gwt-storage-objectify.appspot.com/

the safari permutation:

- native: 94.8 KB (https://gwt-storage-objectify.appspot.com/?compiler.stackMode=native)

- emulated: 181 KB (https://gwt-storage-objectify.appspot.com/?compiler.stackMode=emulated)

With a real app: http://www.learnkeeper.com/

- native: 325 KB (http://www.learnkeeper.com/?compiler.stackMode=native)

- emulated: 664 KB (http://www.learnkeeper.com/?compiler.stackMode=emulated)

On Thursday, November 30, 2017 at 5:44:12 PM UTC+11, Ignacio Baca Moreno-Torres wrote:

I'm curious, what is the code size difference? We end up using always emulated bc the performance and size doesn't worth. But it depends on each app. Or do you do native for performance (speed)?

El mié., 29 nov. 2017 14:36, Thomas Broyer <t.br...@gmail.com> escribió:

So you need to provide a <property-provider> so the correct permutation can be chosen at runtime: http://www.gwtproject.org/doc/latest/DevGuideOrganizingProjects.html#DevGuideModuleXml

(this would likely fix your tests too; but you could also pass a -setProperty for the tests)

On Wednesday, November 29, 2017 at 11:25:15 AM UTC+1, Freddy Boucher wrote:

Hi @Thomas

Yes it works perfectly when I declare it in my *.gwt.xml but not when using Maven <set-property>.

The whole story is: 

For production, I want to compile with both values (native and emulated). 

By default User loads native permutation but if an Unexpected Exception occurs in client code, I send it to server, deobfuscate it, log it, then reload User's browser with emulated permutation.

Why doing that? Because it's likely to happen again if User retry to do exactly the same thing and with emulated permutation, the Deobfuscated StackTrace is 100% accurate about line number (vs not really with native permutation, PS: you can experience it by yourself on my demo app https://gwt-storage-objectify.appspot.com/ native it says View.java:150 vs emulated View.java:151 )

But for dev env and test env, I only need emulated.

And since I only have one *.gwt.xml for all envs, I would prefer to keep only one value otherwise GWTTestCase will complain:

INFO: /launch error: While attempting to load the module, property "compiler.stackMode" was not specifiedAllowed values: emulated,native,strip

Nov 29, 2017 9:22:19 PM com.gargoylesoftware.htmlunit.WebClient printContentIfNecessary

[WARN] 404 - GET /com.learnkeeper.App.JUnit/undefined.cache.js (127.0.0.1) 328 bytes

logging for HtmlUnit thread

   [ERROR] Load Script Error: java.io.IOException: Unable to download JavaScript from 'http://localhost:51160/com.learnkeeper.App.JUnit/undefined.cache.js' (status 404).

java.io.IOException: Unable to download JavaScript from 'http://localhost:51160/com.learnkeeper.App.JUnit/undefined.cache.js' (status 404).

at com.gargoylesoftware.htmlunit.html.HtmlPage.loadJavaScriptFromUrl(HtmlPage.java:1047)

INFO: statusCode=[404] contentType=[text/html]

Nov 29, 2017 9:22:19 PM com.gargoylesoftware.htmlunit.WebClient printContentIfNecessary

INFO: <html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>

<title>Error 404 Not Found</title>

</head>

<body><h2>HTTP ERROR 404</h2>

<p>Problem accessing /com.learnkeeper.App.JUnit/undefined.cache.js. Reason:

<pre>    Not Found</pre></p><hr><i><small>Powered by Jetty://</small></i><hr/>

</body>

</html>

On Wednesday, November 29, 2017 at 7:15:01 PM UTC+11, Thomas Broyer wrote:

I would say that you're not supposed to set compiler.stackMode to anything but a single value, because it doesn't have a property-provider; and that's exactly the problem with the generated JS: the snippet where the error occurs is a property provider, but because there's no <property-provider> for that property, it generates invalid JS (granted, it could have failed instead).

What I don't quite understand is that you're saying (IIUC) it only occurs with -setProperty and not <set-property>.

On Tuesday, November 28, 2017 at 8:57:38 AM UTC+1, Freddy Boucher wrote:

Hi,

On a GWT 2.8.2 Maven project using tbroyer/gwt-maven-plugin

When I declare:

<compilerArgs>
  <arg>-setProperty</arg>
  <arg>compiler.stackMode=native,emulated</arg>
</compilerArgs>

it fails:

[INFO]    Compiling 10 permutations

[INFO]       Compiling permutation 0...

[INFO]       Compiling permutation 1...

[INFO]       Compiling permutation 2...

[INFO]       Compiling permutation 3...

[INFO]       Compiling permutation 4...

[INFO]       Compiling permutation 5...

[INFO]       Compiling permutation 6...

[INFO]       Compiling permutation 7...

[INFO]       Compiling permutation 8...

[INFO]       Compiling permutation 9...

[INFO]    Compile of permutations succeeded

[INFO]    Compilation succeeded -- 53.925s

[INFO] Linking into /Users/freddyboucher/Private/Programming/gwt-storage-objectify/gwt-storage-objectify-client/target/gwt-storage-objectify-client-0.0.1-SNAPSHOT/app; Writing extras to /Users/freddyboucher/Private/Programming/gwt-storage-objectify/gwt-storage-objectify-client/target/gwt-storage-objectify-client-0.0.1-SNAPSHOT/WEB-INF/deploy/app

[INFO]    Invoking Linker Cross-Site-Iframe

[INFO]       Attempting to optimize JS

[INFO]          [ERROR] Unable to parse JavaScript

[INFO] com.google.gwt.dev.js.JsParserException: StandardLinkerContext.optimizeJavaScript(647): missing { before function body

[INFO] >   providers['compiler.stackMode'] = function()null;values['compiler.stackMode'] = {'emulated':0,'native':1,'strip':2};providers['user.agent'] = function(){

[INFO] > --------------------------------------------------^

[INFO] at com.google.gwt.dev.js.JsParser$1.error(JsParser.java:111)

[INFO] at com.google.gwt.dev.js.rhino.Context.reportError(Context.java:459)

[INFO] at com.google.gwt.dev.js.rhino.TokenStream.reportSyntaxError(TokenStream.java:1594)

[INFO] at com.google.gwt.dev.js.rhino.Parser.reportError(Parser.java:72)

[INFO] at com.google.gwt.dev.js.rhino.Parser.mustMatchToken(Parser.java:64)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:254)

[INFO] at com.google.gwt.dev.js.rhino.Parser.primaryExpr(Parser.java:1224)

[INFO] at com.google.gwt.dev.js.rhino.Parser.memberExpr(Parser.java:1163)

[INFO] at com.google.gwt.dev.js.rhino.Parser.unaryExpr(Parser.java:1079)

[INFO] at com.google.gwt.dev.js.rhino.Parser.mulExpr(Parser.java:1031)

[INFO] at com.google.gwt.dev.js.rhino.Parser.addExpr(Parser.java:1015)

[INFO] at com.google.gwt.dev.js.rhino.Parser.shiftExpr(Parser.java:1003)

[INFO] at com.google.gwt.dev.js.rhino.Parser.relExpr(Parser.java:987)

[INFO] at com.google.gwt.dev.js.rhino.Parser.eqExpr(Parser.java:976)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitAndExpr(Parser.java:966)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitXorExpr(Parser.java:956)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitOrExpr(Parser.java:946)

[INFO] at com.google.gwt.dev.js.rhino.Parser.andExpr(Parser.java:935)

[INFO] at com.google.gwt.dev.js.rhino.Parser.orExpr(Parser.java:924)

[INFO] at com.google.gwt.dev.js.rhino.Parser.condExpr(Parser.java:908)

[INFO] at com.google.gwt.dev.js.rhino.Parser.assignExpr(Parser.java:890)

[INFO] at com.google.gwt.dev.js.rhino.Parser.assignExpr(Parser.java:897)

[INFO] at com.google.gwt.dev.js.rhino.Parser.expr(Parser.java:880)

[INFO] at com.google.gwt.dev.js.rhino.Parser.statementHelper(Parser.java:775)

[INFO] at com.google.gwt.dev.js.rhino.Parser.statement(Parser.java:360)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parseFunctionBody(Parser.java:156)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:257)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parseFunctionBody(Parser.java:154)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:257)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parse(Parser.java:116)

[INFO] at com.google.gwt.dev.js.JsParser.parseImpl(JsParser.java:133)

[INFO] at com.google.gwt.dev.js.JsParser.parse(JsParser.java:88)

[INFO] at com.google.gwt.dev.js.JsParser.parseInto(JsParser.java:93)

[INFO] at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.optimizeJavaScript(StandardLinkerContext.java:443)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generateSelectionScript(SelectionScriptLinker.java:428)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generateSelectionScript(SelectionScriptLinker.java:416)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.emitSelectionScript(SelectionScriptLinker.java:310)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.link(SelectionScriptLinker.java:212)

[INFO] at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.invokeFinalLink(StandardLinkerContext.java:339)

[INFO] at com.google.gwt.dev.Link.doSimulatedShardingLink(Link.java:459)

[INFO] at com.google.gwt.dev.Link.link(Link.java:178)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:244)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:155)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:144)

[INFO] at com.google.gwt.dev.Compiler$1.run(Compiler.java:118)

[INFO] at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)

[INFO] at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)

[INFO] at com.google.gwt.dev.Compiler.main(Compiler.java:125)

[INFO] ------------------------------------------------------------------------

[INFO] Reactor Summary:

[INFO] 

[INFO] gwt-storage-objectify .............................. SUCCESS [  0.173 s]

[INFO] gwt-storage-objectify-shared ....................... SUCCESS [  1.390 s]

[INFO] gwt-storage-objectify-client ....................... FAILURE [ 56.988 s]

[INFO] gwt-storage-objectify-server ....................... SKIPPED

This is the commit causing the issue: https://github.com/freddyboucher/gwt-storage-objectify/commit/a235206adfaf2dd29c2f456b3b966006729e110e

Reverting the commit fixes the build.

Thanks

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Re: compilerArgs setProperty multi values - [ERROR] Unable to parse JavaScript

Yes I would say it twice the size with emulated:

For example on my demo app https://gwt-storage-objectify.appspot.com/

the safari permutation:

- native: 94.8 KB (https://gwt-storage-objectify.appspot.com/?compiler.stackMode=native)

- emulated: 181 KB (https://gwt-storage-objectify.appspot.com/?compiler.stackMode=emulated)

With a real app: http://www.learnkeeper.com/

- native: 325 KB (http://www.learnkeeper.com/?compiler.stackMode=native)

- emulated: 664 KB (http://www.learnkeeper.com/?compiler.stackMode=emulated)

On Thursday, November 30, 2017 at 5:44:12 PM UTC+11, Ignacio Baca Moreno-Torres wrote:

I'm curious, what is the code size difference? We end up using always emulated bc the performance and size doesn't worth. But it depends on each app. Or do you do native for performance (speed)?

El mié., 29 nov. 2017 14:36, Thomas Broyer <t.br...@gmail.com> escribió:

So you need to provide a <property-provider> so the correct permutation can be chosen at runtime: http://www.gwtproject.org/doc/latest/DevGuideOrganizingProjects.html#DevGuideModuleXml

(this would likely fix your tests too; but you could also pass a -setProperty for the tests)

On Wednesday, November 29, 2017 at 11:25:15 AM UTC+1, Freddy Boucher wrote:

Hi @Thomas

Yes it works perfectly when I declare it in my *.gwt.xml but not when using Maven <set-property>.

The whole story is: 

For production, I want to compile with both values (native and emulated). 

By default User loads native permutation but if an Unexpected Exception occurs in client code, I send it to server, deobfuscate it, log it, then reload User's browser with emulated permutation.

Why doing that? Because it's likely to happen again if User retry to do exactly the same thing and with emulated permutation, the Deobfuscated StackTrace is 100% accurate about line number (vs not really with native permutation, PS: you can experience it by yourself on my demo app https://gwt-storage-objectify.appspot.com/ native it says View.java:150 vs emulated View.java:151 )

But for dev env and test env, I only need emulated.

And since I only have one *.gwt.xml for all envs, I would prefer to keep only one value otherwise GWTTestCase will complain:

INFO: /launch error: While attempting to load the module, property "compiler.stackMode" was not specifiedAllowed values: emulated,native,strip

Nov 29, 2017 9:22:19 PM com.gargoylesoftware.htmlunit.WebClient printContentIfNecessary

[WARN] 404 - GET /com.learnkeeper.App.JUnit/undefined.cache.js (127.0.0.1) 328 bytes

logging for HtmlUnit thread

   [ERROR] Load Script Error: java.io.IOException: Unable to download JavaScript from 'http://localhost:51160/com.learnkeeper.App.JUnit/undefined.cache.js' (status 404).

java.io.IOException: Unable to download JavaScript from 'http://localhost:51160/com.learnkeeper.App.JUnit/undefined.cache.js' (status 404).

at com.gargoylesoftware.htmlunit.html.HtmlPage.loadJavaScriptFromUrl(HtmlPage.java:1047)

INFO: statusCode=[404] contentType=[text/html]

Nov 29, 2017 9:22:19 PM com.gargoylesoftware.htmlunit.WebClient printContentIfNecessary

INFO: <html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>

<title>Error 404 Not Found</title>

</head>

<body><h2>HTTP ERROR 404</h2>

<p>Problem accessing /com.learnkeeper.App.JUnit/undefined.cache.js. Reason:

<pre>    Not Found</pre></p><hr><i><small>Powered by Jetty://</small></i><hr/>

</body>

</html>

On Wednesday, November 29, 2017 at 7:15:01 PM UTC+11, Thomas Broyer wrote:

I would say that you're not supposed to set compiler.stackMode to anything but a single value, because it doesn't have a property-provider; and that's exactly the problem with the generated JS: the snippet where the error occurs is a property provider, but because there's no <property-provider> for that property, it generates invalid JS (granted, it could have failed instead).

What I don't quite understand is that you're saying (IIUC) it only occurs with -setProperty and not <set-property>.

On Tuesday, November 28, 2017 at 8:57:38 AM UTC+1, Freddy Boucher wrote:

Hi,

On a GWT 2.8.2 Maven project using tbroyer/gwt-maven-plugin

When I declare:

<compilerArgs>
  <arg>-setProperty</arg>
  <arg>compiler.stackMode=native,emulated</arg>
</compilerArgs>

it fails:

[INFO]    Compiling 10 permutations

[INFO]       Compiling permutation 0...

[INFO]       Compiling permutation 1...

[INFO]       Compiling permutation 2...

[INFO]       Compiling permutation 3...

[INFO]       Compiling permutation 4...

[INFO]       Compiling permutation 5...

[INFO]       Compiling permutation 6...

[INFO]       Compiling permutation 7...

[INFO]       Compiling permutation 8...

[INFO]       Compiling permutation 9...

[INFO]    Compile of permutations succeeded

[INFO]    Compilation succeeded -- 53.925s

[INFO] Linking into /Users/freddyboucher/Private/Programming/gwt-storage-objectify/gwt-storage-objectify-client/target/gwt-storage-objectify-client-0.0.1-SNAPSHOT/app; Writing extras to /Users/freddyboucher/Private/Programming/gwt-storage-objectify/gwt-storage-objectify-client/target/gwt-storage-objectify-client-0.0.1-SNAPSHOT/WEB-INF/deploy/app

[INFO]    Invoking Linker Cross-Site-Iframe

[INFO]       Attempting to optimize JS

[INFO]          [ERROR] Unable to parse JavaScript

[INFO] com.google.gwt.dev.js.JsParserException: StandardLinkerContext.optimizeJavaScript(647): missing { before function body

[INFO] >   providers['compiler.stackMode'] = function()null;values['compiler.stackMode'] = {'emulated':0,'native':1,'strip':2};providers['user.agent'] = function(){

[INFO] > --------------------------------------------------^

[INFO] at com.google.gwt.dev.js.JsParser$1.error(JsParser.java:111)

[INFO] at com.google.gwt.dev.js.rhino.Context.reportError(Context.java:459)

[INFO] at com.google.gwt.dev.js.rhino.TokenStream.reportSyntaxError(TokenStream.java:1594)

[INFO] at com.google.gwt.dev.js.rhino.Parser.reportError(Parser.java:72)

[INFO] at com.google.gwt.dev.js.rhino.Parser.mustMatchToken(Parser.java:64)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:254)

[INFO] at com.google.gwt.dev.js.rhino.Parser.primaryExpr(Parser.java:1224)

[INFO] at com.google.gwt.dev.js.rhino.Parser.memberExpr(Parser.java:1163)

[INFO] at com.google.gwt.dev.js.rhino.Parser.unaryExpr(Parser.java:1079)

[INFO] at com.google.gwt.dev.js.rhino.Parser.mulExpr(Parser.java:1031)

[INFO] at com.google.gwt.dev.js.rhino.Parser.addExpr(Parser.java:1015)

[INFO] at com.google.gwt.dev.js.rhino.Parser.shiftExpr(Parser.java:1003)

[INFO] at com.google.gwt.dev.js.rhino.Parser.relExpr(Parser.java:987)

[INFO] at com.google.gwt.dev.js.rhino.Parser.eqExpr(Parser.java:976)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitAndExpr(Parser.java:966)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitXorExpr(Parser.java:956)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitOrExpr(Parser.java:946)

[INFO] at com.google.gwt.dev.js.rhino.Parser.andExpr(Parser.java:935)

[INFO] at com.google.gwt.dev.js.rhino.Parser.orExpr(Parser.java:924)

[INFO] at com.google.gwt.dev.js.rhino.Parser.condExpr(Parser.java:908)

[INFO] at com.google.gwt.dev.js.rhino.Parser.assignExpr(Parser.java:890)

[INFO] at com.google.gwt.dev.js.rhino.Parser.assignExpr(Parser.java:897)

[INFO] at com.google.gwt.dev.js.rhino.Parser.expr(Parser.java:880)

[INFO] at com.google.gwt.dev.js.rhino.Parser.statementHelper(Parser.java:775)

[INFO] at com.google.gwt.dev.js.rhino.Parser.statement(Parser.java:360)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parseFunctionBody(Parser.java:156)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:257)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parseFunctionBody(Parser.java:154)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:257)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parse(Parser.java:116)

[INFO] at com.google.gwt.dev.js.JsParser.parseImpl(JsParser.java:133)

[INFO] at com.google.gwt.dev.js.JsParser.parse(JsParser.java:88)

[INFO] at com.google.gwt.dev.js.JsParser.parseInto(JsParser.java:93)

[INFO] at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.optimizeJavaScript(StandardLinkerContext.java:443)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generateSelectionScript(SelectionScriptLinker.java:428)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generateSelectionScript(SelectionScriptLinker.java:416)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.emitSelectionScript(SelectionScriptLinker.java:310)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.link(SelectionScriptLinker.java:212)

[INFO] at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.invokeFinalLink(StandardLinkerContext.java:339)

[INFO] at com.google.gwt.dev.Link.doSimulatedShardingLink(Link.java:459)

[INFO] at com.google.gwt.dev.Link.link(Link.java:178)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:244)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:155)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:144)

[INFO] at com.google.gwt.dev.Compiler$1.run(Compiler.java:118)

[INFO] at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)

[INFO] at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)

[INFO] at com.google.gwt.dev.Compiler.main(Compiler.java:125)

[INFO] ------------------------------------------------------------------------

[INFO] Reactor Summary:

[INFO] 

[INFO] gwt-storage-objectify .............................. SUCCESS [  0.173 s]

[INFO] gwt-storage-objectify-shared ....................... SUCCESS [  1.390 s]

[INFO] gwt-storage-objectify-client ....................... FAILURE [ 56.988 s]

[INFO] gwt-storage-objectify-server ....................... SKIPPED

This is the commit causing the issue: https://github.com/freddyboucher/gwt-storage-objectify/commit/a235206adfaf2dd29c2f456b3b966006729e110e

Reverting the commit fixes the build.

Thanks

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Re: compilerArgs setProperty multi values - [ERROR] Unable to parse JavaScript

I'm curious, what is the code size difference? We end up using always emulated bc the performance and size doesn't worth. But it depends on each app. Or do you do native for performance (speed)?

El mié., 29 nov. 2017 14:36, Thomas Broyer <t.broyer@gmail.com> escribió:

So you need to provide a <property-provider> so the correct permutation can be chosen at runtime: http://www.gwtproject.org/doc/latest/DevGuideOrganizingProjects.html#DevGuideModuleXml

(this would likely fix your tests too; but you could also pass a -setProperty for the tests)

On Wednesday, November 29, 2017 at 11:25:15 AM UTC+1, Freddy Boucher wrote:

Hi @Thomas

Yes it works perfectly when I declare it in my *.gwt.xml but not when using Maven <set-property>.

The whole story is: 

For production, I want to compile with both values (native and emulated). 

By default User loads native permutation but if an Unexpected Exception occurs in client code, I send it to server, deobfuscate it, log it, then reload User's browser with emulated permutation.

Why doing that? Because it's likely to happen again if User retry to do exactly the same thing and with emulated permutation, the Deobfuscated StackTrace is 100% accurate about line number (vs not really with native permutation, PS: you can experience it by yourself on my demo app https://gwt-storage-objectify.appspot.com/ native it says View.java:150 vs emulated View.java:151 )

But for dev env and test env, I only need emulated.

And since I only have one *.gwt.xml for all envs, I would prefer to keep only one value otherwise GWTTestCase will complain:

INFO: /launch error: While attempting to load the module, property "compiler.stackMode" was not specifiedAllowed values: emulated,native,strip

Nov 29, 2017 9:22:19 PM com.gargoylesoftware.htmlunit.WebClient printContentIfNecessary

[WARN] 404 - GET /com.learnkeeper.App.JUnit/undefined.cache.js (127.0.0.1) 328 bytes

logging for HtmlUnit thread

   [ERROR] Load Script Error: java.io.IOException: Unable to download JavaScript from 'http://localhost:51160/com.learnkeeper.App.JUnit/undefined.cache.js' (status 404).

java.io.IOException: Unable to download JavaScript from 'http://localhost:51160/com.learnkeeper.App.JUnit/undefined.cache.js' (status 404).

at com.gargoylesoftware.htmlunit.html.HtmlPage.loadJavaScriptFromUrl(HtmlPage.java:1047)

INFO: statusCode=[404] contentType=[text/html]

Nov 29, 2017 9:22:19 PM com.gargoylesoftware.htmlunit.WebClient printContentIfNecessary

INFO: <html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>

<title>Error 404 Not Found</title>

</head>

<body><h2>HTTP ERROR 404</h2>

<p>Problem accessing /com.learnkeeper.App.JUnit/undefined.cache.js. Reason:

<pre>    Not Found</pre></p><hr><i><small>Powered by Jetty://</small></i><hr/>

</body>

</html>

On Wednesday, November 29, 2017 at 7:15:01 PM UTC+11, Thomas Broyer wrote:

I would say that you're not supposed to set compiler.stackMode to anything but a single value, because it doesn't have a property-provider; and that's exactly the problem with the generated JS: the snippet where the error occurs is a property provider, but because there's no <property-provider> for that property, it generates invalid JS (granted, it could have failed instead).

What I don't quite understand is that you're saying (IIUC) it only occurs with -setProperty and not <set-property>.

On Tuesday, November 28, 2017 at 8:57:38 AM UTC+1, Freddy Boucher wrote:

Hi,

On a GWT 2.8.2 Maven project using tbroyer/gwt-maven-plugin

When I declare:

<compilerArgs>
  <arg>-setProperty</arg>
  <arg>compiler.stackMode=native,emulated</arg>
</compilerArgs>

it fails:

[INFO]    Compiling 10 permutations

[INFO]       Compiling permutation 0...

[INFO]       Compiling permutation 1...

[INFO]       Compiling permutation 2...

[INFO]       Compiling permutation 3...

[INFO]       Compiling permutation 4...

[INFO]       Compiling permutation 5...

[INFO]       Compiling permutation 6...

[INFO]       Compiling permutation 7...

[INFO]       Compiling permutation 8...

[INFO]       Compiling permutation 9...

[INFO]    Compile of permutations succeeded

[INFO]    Compilation succeeded -- 53.925s

[INFO] Linking into /Users/freddyboucher/Private/Programming/gwt-storage-objectify/gwt-storage-objectify-client/target/gwt-storage-objectify-client-0.0.1-SNAPSHOT/app; Writing extras to /Users/freddyboucher/Private/Programming/gwt-storage-objectify/gwt-storage-objectify-client/target/gwt-storage-objectify-client-0.0.1-SNAPSHOT/WEB-INF/deploy/app

[INFO]    Invoking Linker Cross-Site-Iframe

[INFO]       Attempting to optimize JS

[INFO]          [ERROR] Unable to parse JavaScript

[INFO] com.google.gwt.dev.js.JsParserException: StandardLinkerContext.optimizeJavaScript(647): missing { before function body

[INFO] >   providers['compiler.stackMode'] = function()null;values['compiler.stackMode'] = {'emulated':0,'native':1,'strip':2};providers['user.agent'] = function(){

[INFO] > --------------------------------------------------^

[INFO] at com.google.gwt.dev.js.JsParser$1.error(JsParser.java:111)

[INFO] at com.google.gwt.dev.js.rhino.Context.reportError(Context.java:459)

[INFO] at com.google.gwt.dev.js.rhino.TokenStream.reportSyntaxError(TokenStream.java:1594)

[INFO] at com.google.gwt.dev.js.rhino.Parser.reportError(Parser.java:72)

[INFO] at com.google.gwt.dev.js.rhino.Parser.mustMatchToken(Parser.java:64)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:254)

[INFO] at com.google.gwt.dev.js.rhino.Parser.primaryExpr(Parser.java:1224)

[INFO] at com.google.gwt.dev.js.rhino.Parser.memberExpr(Parser.java:1163)

[INFO] at com.google.gwt.dev.js.rhino.Parser.unaryExpr(Parser.java:1079)

[INFO] at com.google.gwt.dev.js.rhino.Parser.mulExpr(Parser.java:1031)

[INFO] at com.google.gwt.dev.js.rhino.Parser.addExpr(Parser.java:1015)

[INFO] at com.google.gwt.dev.js.rhino.Parser.shiftExpr(Parser.java:1003)

[INFO] at com.google.gwt.dev.js.rhino.Parser.relExpr(Parser.java:987)

[INFO] at com.google.gwt.dev.js.rhino.Parser.eqExpr(Parser.java:976)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitAndExpr(Parser.java:966)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitXorExpr(Parser.java:956)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitOrExpr(Parser.java:946)

[INFO] at com.google.gwt.dev.js.rhino.Parser.andExpr(Parser.java:935)

[INFO] at com.google.gwt.dev.js.rhino.Parser.orExpr(Parser.java:924)

[INFO] at com.google.gwt.dev.js.rhino.Parser.condExpr(Parser.java:908)

[INFO] at com.google.gwt.dev.js.rhino.Parser.assignExpr(Parser.java:890)

[INFO] at com.google.gwt.dev.js.rhino.Parser.assignExpr(Parser.java:897)

[INFO] at com.google.gwt.dev.js.rhino.Parser.expr(Parser.java:880)

[INFO] at com.google.gwt.dev.js.rhino.Parser.statementHelper(Parser.java:775)

[INFO] at com.google.gwt.dev.js.rhino.Parser.statement(Parser.java:360)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parseFunctionBody(Parser.java:156)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:257)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parseFunctionBody(Parser.java:154)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:257)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parse(Parser.java:116)

[INFO] at com.google.gwt.dev.js.JsParser.parseImpl(JsParser.java:133)

[INFO] at com.google.gwt.dev.js.JsParser.parse(JsParser.java:88)

[INFO] at com.google.gwt.dev.js.JsParser.parseInto(JsParser.java:93)

[INFO] at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.optimizeJavaScript(StandardLinkerContext.java:443)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generateSelectionScript(SelectionScriptLinker.java:428)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generateSelectionScript(SelectionScriptLinker.java:416)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.emitSelectionScript(SelectionScriptLinker.java:310)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.link(SelectionScriptLinker.java:212)

[INFO] at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.invokeFinalLink(StandardLinkerContext.java:339)

[INFO] at com.google.gwt.dev.Link.doSimulatedShardingLink(Link.java:459)

[INFO] at com.google.gwt.dev.Link.link(Link.java:178)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:244)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:155)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:144)

[INFO] at com.google.gwt.dev.Compiler$1.run(Compiler.java:118)

[INFO] at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)

[INFO] at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)

[INFO] at com.google.gwt.dev.Compiler.main(Compiler.java:125)

[INFO] ------------------------------------------------------------------------

[INFO] Reactor Summary:

[INFO] 

[INFO] gwt-storage-objectify .............................. SUCCESS [  0.173 s]

[INFO] gwt-storage-objectify-shared ....................... SUCCESS [  1.390 s]

[INFO] gwt-storage-objectify-client ....................... FAILURE [ 56.988 s]

[INFO] gwt-storage-objectify-server ....................... SKIPPED

This is the commit causing the issue: https://github.com/freddyboucher/gwt-storage-objectify/commit/a235206adfaf2dd29c2f456b3b966006729e110e

Reverting the commit fixes the build.

Thanks

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Does GWT provide any way to have a viewer to display html files package?

Hi

When we have whole html folders, click "index.html" in the Root directory, default will open IE to viewer whole HTML, and could iterator the pages.

Our GWT based application try to support such viewer, so how to implement it?

From the whole html directory, for each html page, "view source" shows all java script, 

Could GWT import the java script and display them? 

Do appreciate any help from you all!

Thanks!

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Re: JsInterop - How to access window object

Yes that's exactly what I needed.

Thanks.

Guillaume

On 29 November 2017 at 11:22, Thomas Broyer <t.broyer@gmail.com> wrote:

On Wednesday, November 29, 2017 at 4:44:22 PM UTC+1, grebesche wrote:

Hi,

I want to use JsInterop to interact with a library that define a global object in the window (`window.gantt`).

I have defined the @JsType interface for this object `gantt`.

But now, how can I access this object in my GWT code?

Assuming you're talking about a "singleton" (global instance), then the simplest would be to have that method somewhere (anywhere):

@JsProperty(namespace=JsPackage.GLOBAL, name="gantt")
static native Gantt getGantt();

Gantt here would be your native JsType (beware of the namespace="" and name="" on the JsType if you don't want class cast exceptions at runtime; if the type is unknown, then use a Java interface to model it, or use namespace=JsPackage.GLOBAL,name="Object" to make sure that a JS "instanceof" would work)

You could also declare a native JsType representing the global scope (window) with a field to get that "gantt" object, similarly to how Elemental 2 works:

@JsType(isNative=true, name="window", namespace=JsPackage.GLOBAL)
class GanttGlobal {
  public static Gantt gantt;
}

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Re: JsInterop - How to access window object

On Wednesday, November 29, 2017 at 4:44:22 PM UTC+1, grebesche wrote:

Hi,

I want to use JsInterop to interact with a library that define a global object in the window (`window.gantt`).

I have defined the @JsType interface for this object `gantt`.

But now, how can I access this object in my GWT code?

Assuming you're talking about a "singleton" (global instance), then the simplest would be to have that method somewhere (anywhere):

@JsProperty(namespace=JsPackage.GLOBAL, name="gantt")
static native Gantt getGantt();

Gantt here would be your native JsType (beware of the namespace="" and name="" on the JsType if you don't want class cast exceptions at runtime; if the type is unknown, then use a Java interface to model it, or use namespace=JsPackage.GLOBAL,name="Object" to make sure that a JS "instanceof" would work)

You could also declare a native JsType representing the global scope (window) with a field to get that "gantt" object, similarly to how Elemental 2 works:

@JsType(isNative=true, name="window", namespace=JsPackage.GLOBAL)
class GanttGlobal {
  public static Gantt gantt;
}

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JsInterop - How to access window object

Hi,

I want to use JsInterop to interact with a library that define a global object in the window (`window.gantt`).

I have defined the @JsType interface for this object `gantt`.

But now, how can I access this object in my GWT code?

Thanks

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Re: compilerArgs setProperty multi values - [ERROR] Unable to parse JavaScript

So you need to provide a <property-provider> so the correct permutation can be chosen at runtime: http://www.gwtproject.org/doc/latest/DevGuideOrganizingProjects.html#DevGuideModuleXml

(this would likely fix your tests too; but you could also pass a -setProperty for the tests)

On Wednesday, November 29, 2017 at 11:25:15 AM UTC+1, Freddy Boucher wrote:

Hi @Thomas

Yes it works perfectly when I declare it in my *.gwt.xml but not when using Maven <set-property>.

The whole story is: 

For production, I want to compile with both values (native and emulated). 

By default User loads native permutation but if an Unexpected Exception occurs in client code, I send it to server, deobfuscate it, log it, then reload User's browser with emulated permutation.

Why doing that? Because it's likely to happen again if User retry to do exactly the same thing and with emulated permutation, the Deobfuscated StackTrace is 100% accurate about line number (vs not really with native permutation, PS: you can experience it by yourself on my demo app https://gwt-storage-objectify.appspot.com/ native it says View.java:150 vs emulated View.java:151 )

But for dev env and test env, I only need emulated.

And since I only have one *.gwt.xml for all envs, I would prefer to keep only one value otherwise GWTTestCase will complain:

INFO: /launch error: While attempting to load the module, property "compiler.stackMode" was not specifiedAllowed values: emulated,native,strip

Nov 29, 2017 9:22:19 PM com.gargoylesoftware.htmlunit.WebClient printContentIfNecessary

[WARN] 404 - GET /com.learnkeeper.App.JUnit/undefined.cache.js (127.0.0.1) 328 bytes

logging for HtmlUnit thread

   [ERROR] Load Script Error: java.io.IOException: Unable to download JavaScript from 'http://localhost:51160/com.learnkeeper.App.JUnit/undefined.cache.js' (status 404).

java.io.IOException: Unable to download JavaScript from 'http://localhost:51160/com.learnkeeper.App.JUnit/undefined.cache.js' (status 404).

at com.gargoylesoftware.htmlunit.html.HtmlPage.loadJavaScriptFromUrl(HtmlPage.java:1047)

INFO: statusCode=[404] contentType=[text/html]

Nov 29, 2017 9:22:19 PM com.gargoylesoftware.htmlunit.WebClient printContentIfNecessary

INFO: <html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>

<title>Error 404 Not Found</title>

</head>

<body><h2>HTTP ERROR 404</h2>

<p>Problem accessing /com.learnkeeper.App.JUnit/undefined.cache.js. Reason:

<pre>    Not Found</pre></p><hr><i><small>Powered by Jetty://</small></i><hr/>

</body>

</html>

On Wednesday, November 29, 2017 at 7:15:01 PM UTC+11, Thomas Broyer wrote:

I would say that you're not supposed to set compiler.stackMode to anything but a single value, because it doesn't have a property-provider; and that's exactly the problem with the generated JS: the snippet where the error occurs is a property provider, but because there's no <property-provider> for that property, it generates invalid JS (granted, it could have failed instead).

What I don't quite understand is that you're saying (IIUC) it only occurs with -setProperty and not <set-property>.

On Tuesday, November 28, 2017 at 8:57:38 AM UTC+1, Freddy Boucher wrote:

Hi,

On a GWT 2.8.2 Maven project using tbroyer/gwt-maven-plugin

When I declare:

<compilerArgs>
  <arg>-setProperty</arg>
  <arg>compiler.stackMode=native,emulated</arg>
</compilerArgs>

it fails:

[INFO]    Compiling 10 permutations

[INFO]       Compiling permutation 0...

[INFO]       Compiling permutation 1...

[INFO]       Compiling permutation 2...

[INFO]       Compiling permutation 3...

[INFO]       Compiling permutation 4...

[INFO]       Compiling permutation 5...

[INFO]       Compiling permutation 6...

[INFO]       Compiling permutation 7...

[INFO]       Compiling permutation 8...

[INFO]       Compiling permutation 9...

[INFO]    Compile of permutations succeeded

[INFO]    Compilation succeeded -- 53.925s

[INFO] Linking into /Users/freddyboucher/Private/Programming/gwt-storage-objectify/gwt-storage-objectify-client/target/gwt-storage-objectify-client-0.0.1-SNAPSHOT/app; Writing extras to /Users/freddyboucher/Private/Programming/gwt-storage-objectify/gwt-storage-objectify-client/target/gwt-storage-objectify-client-0.0.1-SNAPSHOT/WEB-INF/deploy/app

[INFO]    Invoking Linker Cross-Site-Iframe

[INFO]       Attempting to optimize JS

[INFO]          [ERROR] Unable to parse JavaScript

[INFO] com.google.gwt.dev.js.JsParserException: StandardLinkerContext.optimizeJavaScript(647): missing { before function body

[INFO] >   providers['compiler.stackMode'] = function()null;values['compiler.stackMode'] = {'emulated':0,'native':1,'strip':2};providers['user.agent'] = function(){

[INFO] > --------------------------------------------------^

[INFO] at com.google.gwt.dev.js.JsParser$1.error(JsParser.java:111)

[INFO] at com.google.gwt.dev.js.rhino.Context.reportError(Context.java:459)

[INFO] at com.google.gwt.dev.js.rhino.TokenStream.reportSyntaxError(TokenStream.java:1594)

[INFO] at com.google.gwt.dev.js.rhino.Parser.reportError(Parser.java:72)

[INFO] at com.google.gwt.dev.js.rhino.Parser.mustMatchToken(Parser.java:64)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:254)

[INFO] at com.google.gwt.dev.js.rhino.Parser.primaryExpr(Parser.java:1224)

[INFO] at com.google.gwt.dev.js.rhino.Parser.memberExpr(Parser.java:1163)

[INFO] at com.google.gwt.dev.js.rhino.Parser.unaryExpr(Parser.java:1079)

[INFO] at com.google.gwt.dev.js.rhino.Parser.mulExpr(Parser.java:1031)

[INFO] at com.google.gwt.dev.js.rhino.Parser.addExpr(Parser.java:1015)

[INFO] at com.google.gwt.dev.js.rhino.Parser.shiftExpr(Parser.java:1003)

[INFO] at com.google.gwt.dev.js.rhino.Parser.relExpr(Parser.java:987)

[INFO] at com.google.gwt.dev.js.rhino.Parser.eqExpr(Parser.java:976)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitAndExpr(Parser.java:966)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitXorExpr(Parser.java:956)

[INFO] at com.google.gwt.dev.js.rhino.Parser.bitOrExpr(Parser.java:946)

[INFO] at com.google.gwt.dev.js.rhino.Parser.andExpr(Parser.java:935)

[INFO] at com.google.gwt.dev.js.rhino.Parser.orExpr(Parser.java:924)

[INFO] at com.google.gwt.dev.js.rhino.Parser.condExpr(Parser.java:908)

[INFO] at com.google.gwt.dev.js.rhino.Parser.assignExpr(Parser.java:890)

[INFO] at com.google.gwt.dev.js.rhino.Parser.assignExpr(Parser.java:897)

[INFO] at com.google.gwt.dev.js.rhino.Parser.expr(Parser.java:880)

[INFO] at com.google.gwt.dev.js.rhino.Parser.statementHelper(Parser.java:775)

[INFO] at com.google.gwt.dev.js.rhino.Parser.statement(Parser.java:360)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parseFunctionBody(Parser.java:156)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:257)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parseFunctionBody(Parser.java:154)

[INFO] at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:257)

[INFO] at com.google.gwt.dev.js.rhino.Parser.parse(Parser.java:116)

[INFO] at com.google.gwt.dev.js.JsParser.parseImpl(JsParser.java:133)

[INFO] at com.google.gwt.dev.js.JsParser.parse(JsParser.java:88)

[INFO] at com.google.gwt.dev.js.JsParser.parseInto(JsParser.java:93)

[INFO] at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.optimizeJavaScript(StandardLinkerContext.java:443)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generateSelectionScript(SelectionScriptLinker.java:428)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generateSelectionScript(SelectionScriptLinker.java:416)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.emitSelectionScript(SelectionScriptLinker.java:310)

[INFO] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.link(SelectionScriptLinker.java:212)

[INFO] at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.invokeFinalLink(StandardLinkerContext.java:339)

[INFO] at com.google.gwt.dev.Link.doSimulatedShardingLink(Link.java:459)

[INFO] at com.google.gwt.dev.Link.link(Link.java:178)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:244)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:155)

[INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:144)

[INFO] at com.google.gwt.dev.Compiler$1.run(Compiler.java:118)

[INFO] at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)

[INFO] at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)

[INFO] at com.google.gwt.dev.Compiler.main(Compiler.java:125)

[INFO] ------------------------------------------------------------------------

[INFO] Reactor Summary:

[INFO] 

[INFO] gwt-storage-objectify .............................. SUCCESS [  0.173 s]

[INFO] gwt-storage-objectify-shared ....................... SUCCESS [  1.390 s]

[INFO] gwt-storage-objectify-client ....................... FAILURE [ 56.988 s]

[INFO] gwt-storage-objectify-server ....................... SKIPPED

This is the commit causing the issue: https://github.com/freddyboucher/gwt-storage-objectify/commit/a235206adfaf2dd29c2f456b3b966006729e110e

Reverting the commit fixes the build.

Thanks

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