Re: GWT Update to 2.8.2

IIUC, make sure all your <entry-point/> classes implement EntryPoint.

Before 2.7, entry points weren't cast to EntryPoint, so you only had to have a method with "void onModuleLoad()" signature; starting with GWT 2.7 (and specifically this commit: https://github.com/gwtproject/gwt/commit/3be1548873300d5bcb74c0258352c90abe7a42bd), the entry points are cast to EntryPoint.

On Tuesday, June 12, 2018 at 10:13:13 AM UTC+2, dinesh kumar wrote:

I was able to compile my code using latest GWT library.

However while running, my i-frame does not load in the browser and following error displays on the browser console:

Tue Jun 12 13:41:26 GMT+530 2018 com.google.gwt.logging.client.LogConfiguration

SEVERE: null

java.lang.ClassCastException

at Unknown.Throwable_0(Throwable.java:67)

at Unknown.Exception_0(Exception.java:29)

at Unknown.RuntimeException_0(RuntimeException.java:29)

at Unknown.ClassCastException_0(ClassCastException.java:27)

at Unknown.checkCriticalType(InternalPreconditions.java:154)

at Unknown.throwClassCastExceptionUnlessNull(InternalPreconditions.java:138)

at Unknown.init_9(com_00046ptc_00046windchill_00046wncgwt_00046WncGWTdebug__EntryMethodHolder.java:3)

at Unknown.initializeModules(ModuleUtils.java:44)

at Unknown.apply_0(Impl.java:309)

at Unknown.entry0_0(Impl.java:368)

at Unknown.anonymous(Impl.java:78)

at Unknown.gwtOnLoad_0(ModuleUtils.java:55)

Uncaught Error: java.lang.ClassCastException

    at ClassCastException_0.createError (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:62059)

    at ClassCastException_0.initializeBackingError (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:62104)

    at ClassCastException_0.Throwable_0 (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:62009)

    at ClassCastException_0.Exception_0 (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:62145)

    at ClassCastException_0.RuntimeException_0 (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:62179)

    at new ClassCastException_0 (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:480204)

    at checkCriticalType (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:490918)

    at throwClassCastExceptionUnlessNull (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:458)

    at Array.init_9 (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:74335)

    at initializeModules (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:46)

    at apply_0 (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:63011)

    at entry0_0 (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:63076)

    at com.ptc.windchill.wncgwt.WncGWTdebug-0.js:63045

    at gwtOnLoad_0 (com.ptc.windchill.wncgwt.WncGWTdebug-0.js:60)

    at com.ptc.windchill.wncgwt.WncGWTdebug-0.js:495783

On Thursday, June 7, 2018 at 7:11:02 PM UTC+5:30, Colin Alworth wrote:

The errors you are getting aren't related to your Locale supersource (or at least not directly), but to the fact that your project has conflicting JRE sources which don't make sense, and so cannot be compiled. Your version of "gwtx" cannot be used with any version of GWT released within the last 9 years or so.

The first set of errors in your log, from GWT's internal i18n/etc, are the same error you are going to get from every type in your entire application, because java.lang.Object is broken in your project:

[ERROR] java.lang.Object cannot be resolved to a type

Searching for Object.java shows us the root cause:

   [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/lang/Object.java'
     [java]          [ERROR] java.lang.Throwable cannot be resolved to a type

And in turn, searching for Throwable.java...

     [java]       [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/lang/Throwable.java'
     [java]          [ERROR] java.io.PrintStream cannot be resolved to a type

...

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/io/PrintStream.java'

     [java]          [ERROR] java.io.FilterOutputStream cannot be resolved to a type

And finally

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/io/FilterOutputStream.java'

     [java]          [ERROR] Line 74: The constructor IOException(Throwable) is undefined

which by itself appears crazy, until you see where IOException comes from: 'jar:file:/opt/wnc/3rdPartyJars/lib/gwtx-1.5.2.jar!/com/googlecode/gwtx/java/io/emul/java/io/IOException.java'.

Since GoogleCode is long dead, we can't see the sources there, but you can see them in some exported github projects, such as https://github.com/ttt43ttt/gwtx/blob/master/src/main/java/gwtx/java/io/emul/java/io/IOException.java. You can see there that gwtx is missing this constructor, but GWT 2.8.2 correctly has it (see https://gwt.googlesource.com/gwt/+/2.8.2/user/super/com/google/gwt/emul/java/io/IOException.java#37).

This is the root issue - IOException is redefined in gwtx, and is incompatible with "modern" (i.e. less than 9 years old) gwt-user.jar. Fix this, and these other resulting issues should go away (though there may be more issues if you do not entirely remove gwtx.jar, and possibly also CoreGWT-src.jar as well, but I cannot say without actually seeing the sources inside).

On Thursday, June 7, 2018 at 8:07:23 AM UTC-5, dinesh kumar wrote:

I have emulated few of the classes for example : java.util.Locale

But now all my code is always referring to this class instead of jre library. How and where can we specify where to look for?

On Tuesday, June 5, 2018 at 12:27:44 PM UTC+5:30, dinesh kumar wrote:

I have updated to GWT 2.8.2 and getting a compilation error : 

Compilation unit 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/i18n/shared/impl/cldr/DateTimeFormatInfoImpl_se.java' is removed due to invalid reference(s):

     [java]          java.lang.String

     [java]       Compilation unit 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/i18n/client/constants/NumberConstants.java' is removed due to invalid reference(s):

     [java]          java.lang.String

     [java]       Compilation unit 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/dom/builder/client/DomMediaBuilderBase.java' is removed due to invalid reference(s):

     [java]          java.lang.String

     [java]       Compilation unit 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/i18n/shared/impl/cldr/DateTimeFormatInfoImpl_lkt.java' is removed due to invalid reference(s):

     [java]          java.lang.String

     [java]       Compilation unit 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/i18n/client/impl/cldr/DateTimeFormatInfoImpl_jgo.java' is removed due to invalid reference(s):

     [java]          java.lang.String

.

.

.

..

   [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/lang/Object.java'

     [java]          [ERROR] java.lang.Throwable cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/core/client/JavaScriptObject.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/lang/Throwable.java'

     [java]          [ERROR] java.io.PrintStream cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/lang/Class.java'

     [java]          [ERROR] com.google.gwt.core.client.JavaScriptObject cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/String.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/lang/CloneNotSupportedException.java'

     [java]          [ERROR] java.lang.Exception cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/io/PrintStream.java'

     [java]          [ERROR] java.io.FilterOutputStream cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/io/PrintWriter.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/StackTraceElement.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/lang/ClassNotFoundException.java'

     [java]          [ERROR] java.lang.Exception cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/lang/reflect/Method.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/CharSequence.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/Iterable.java'

     [java]          [ERROR] java.util.Spliterator cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/javaemul/internal/NativeRegExp.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/nio/charset/Charset.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/StringBuffer.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/util/Locale.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/StringBuilder.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/Comparator.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/io/UnsupportedEncodingException.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/Exception.java'

     [java]          [ERROR] java.lang.Throwable cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/io/OutputStream.java'

     [java]          [ERROR] java.io.IOException cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/io/FilterOutputStream.java'

     [java]          [ERROR] Line 74: The constructor IOException(Throwable) is undefined

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/stream/IntStream.java'

     [java]          [ERROR] java.util.OptionalDouble cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/Spliterator.java'

     [java]          [ERROR] java.util.Comparator cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/SortedMap.java'

     [java]          [ERROR] java.util.Comparator cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/AbstractStringBuilder.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/i18n/client/LocaleInfo.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwtx-1.5.2.jar!/com/googlecode/gwtx/java/io/emul/java/io/IOException.java'

     [java]          [ERROR] java.lang.Exception cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwtx-1.5.2.jar!/com/googlecode/gwtx/java/io/emul/java/io/Closeable.java'

     [java]          [ERROR] java.io.IOException cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwtx-1.5.2.jar!/com/googlecode/gwtx/java/io/emul/java/io/Flushable.java'

     [java]          [ERROR] java.io.IOException cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/stream/LongStream.java'

     [java]          [ERROR] java.util.OptionalDouble cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/OptionalDouble.java'

     [java]          [ERROR] java.lang.Throwable cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/gwt/java/lang/Integer.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/OptionalInt.java'

     [java]          [ERROR] java.lang.Throwable cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/stream/DoubleStream.java'

     [java]          [ERROR] java.util.OptionalDouble cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/stream/Stream.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/stream/BaseStream.java'

     [java]          [ERROR] java.lang.AutoCloseable cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/IntSummaryStatistics.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/Double.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/Long.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/Map.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/Appendable.java'

     [java]          [ERROR] java.io.IOException cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/i18n/client/DateTimeFormatInfo.java'

     [java]          [ERROR] com.google.gwt.i18n.shared.DateTimeFormatInfo cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/i18n/client/LocalizedNames.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/i18n/client/constants/DateTimeConstants.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/ptc/fox_10/Windchill/srclib/wnc/CoreGWT-src.jar!/com/google/gwt/i18n/client/impl/LocaleInfoImpl.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/i18n/client/constants/NumberConstants.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/OptionalLong.java'

     [java]          [ERROR] java.lang.Throwable cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/LongSummaryStatistics.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/NumberFormatException.java'

     [java]          [ERROR] java.lang.IllegalArgumentException cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/Number.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/DoubleSummaryStatistics.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/function/Predicate.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/function/BinaryOperator.java'

     [java]          [ERROR] java.util.Comparator cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/Optional.java'

     [java]          [ERROR] java.lang.Throwable cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/stream/Collector.java'

     [java]          [ERROR] java.util.Set cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/AutoCloseable.java'

     [java]          [ERROR] java.lang.Exception cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/Collection.java'

     [java]          [ERROR] java.lang.Object cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/util/Set.java'

     [java]          [ERROR] java.util.Collection cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/i18n/shared/DateTimeFormatInfo.java'

     [java]          [ERROR] java.lang.String cannot be resolved to a type

     [java]       [ERROR] Errors in 'jar:file:/opt/wnc/3rdPartyJars/lib/gwt-user.jar!/com/google/gwt/emul/java/lang/IllegalArgumentException.java'

     [java]          [ERROR] java.lang.Throwable cannot be resolved to a type

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