JS Minification fails using jsProcessor="min:gcc;languageIn=ECMASCRIPT6 for Clientlibs

[rocks]

Hi

After installing the SP2 upgrade for AEM6.3 the minification of js seems to fail.

Following is displayed in error.log.

1. 19.11.2018 14:21:50.662 *ERROR* [0:0:0:0:0:0:0:1 [1542655310643] GET /etc/designs/<project-name>/clientlibs/js/features/<some-js-filename>-js.min.js HTTP/1.1] com.adobe.granite.ui.clientlibs.impl.HtmlLibraryManagerImpl Error during assembly of library.
2. java.lang.IllegalArgumentException: No enum constant com.google.javascript.jscomp.CompilerOptions.LanguageMode.ECMASCRIPT6

at java.lang.Enum.valueOf(Unknown Source)

at com.google.javascript.jscomp.CompilerOptions$LanguageMode.valueOf(CompilerOptions.java:3022)

at com.adobe.granite.ui.clientlibs.processor.gcc.impl.GCCScriptProcessor.createCompilerOptions(GCCScriptProcessor.java:128)

at com.adobe.granite.ui.clientlibs.processor.gcc.impl.GCCScriptProcessor.process(GCCScriptProcessor.java:93)

at com.adobe.granite.ui.clientlibs.impl.HtmlLibraryBuilderImpl.processSources(HtmlLibraryBuilderImpl.java:122)

at com.adobe.granite.ui.clientlibs.impl.HtmlLibraryBuilderImpl.processSources(HtmlLibraryBuilderImpl.java:87)

at com.adobe.granite.ui.clientlibs.impl.HtmlLibraryBuilderImpl.build(HtmlLibraryBuilderImpl.java:135)

at com.adobe.granite.ui.clientlibs.impl.HtmlLibraryManagerImpl.update(HtmlLibraryManagerImpl.java:1411)

The above clientlibs has the jsprocessor=min:gcc;languageIn=ECMASCRIPT6.

Need help on the above.

[smacdonald2008]

This could be an upgrade issue. If no one provides a solution - please open a support ticket.

[SB_PK]

Hi Rakesh,

I got the same error in 6.4 fresh installation. I have installed the Service pack 3.. its resolved now.. i hope with SP2 for 6.4 as well it will work. Not sure on 6.3

[aniac4]

TL;DR

HtmlLibraryManager configuration property 'htmllibmanager.processor.js' should have languageIn attribute specified as follows:

- ‘ECMASCRIPT_2016’ for AEM SP >= 6.3.3 (this is the one that i verified so far, but the same may be for SP2)

- ‘ECMASCRIPT6’ for AEM 6.3.0

Example: min:gcc;obfuscate=true;languageIn=ECMASCRIPT_2016

Details

AEM 6.3.3 uses

     com.adobe.granite.ui.clientlibs.processor.gcc-1.0.6-CQ630-B0006.jar which leverages on

           closure-compiler-v20170806.jar

com.google.javascript.jscomp.CompilerOptions.class has an enum with the available options:

public static enum LanguageMode {

  ECMASCRIPT3,

   ECMASCRIPT5,

   ECMASCRIPT5_STRICT,

   ECMASCRIPT_2015,

   ECMASCRIPT6_TYPED,

   ECMASCRIPT_2016,

   ECMASCRIPT_2017,

   ECMASCRIPT_NEXT,

   NO_TRANSPILE;

}

AEM 6.3.0 uses

     com.adobe.granite.ui.clientlibs.processor.gcc-1.0.6.jar which leverages on

          closure-compiler-v20161024.jar

com.google.javascript.jscomp.CompilerOptions.class has an enum with the available options:

public static enum LanguageMode {

  ECMASCRIPT3,
   ECMASCRIPT5,
   ECMASCRIPT5_STRICT,
   ECMASCRIPT6,
   ECMASCRIPT6_STRICT,
   ECMASCRIPT6_TYPED,
   ECMASCRIPT7,
   ECMASCRIPT8,
   NO_TRANSPILE;

}