CODEWITHSUNDEEP
gwt
pavan kumar
pavan kumar

Reputation: 11

Facing issue compiling GWT after upgrading java to java11

Getting following exception after upgrading java. I am using gwt 2.9 libraries and ant in our project.

[java]    Ignored 37 units with compilation errors in first pass.
     [java] Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.
     [java]    Resolving com.google.gwt.cell.client.FieldUpdater
     [java]       Found type 'com.google.gwt.cell.client.FieldUpdater'
     [java]          [ERROR] Unable to find class java/lang/Object
     [java]          [ERROR] Unable to find class java/lang/Object
     [java]          [ERROR] Unable to find class java/lang/Object
     [java]    Resolving com.google.gwt.cell.client.ValueUpdater
     [java]       Found type 'com.google.gwt.cell.client.ValueUpdater'
     [java]          [ERROR] Unable to find class java/lang/Object
     [java]          [ERROR] Unable to find class java/lang/Object
     [java]    Resolving com.google.gwt.core.client.AsyncProvider
     [java]       Found type 'com.google.gwt.core.client.AsyncProvider'
     [java]          [ERROR] Unable to find class java/lang/Object
     [java]          [ERROR] Unable to find class java/lang/Object
     [java]          [ERROR] Unable to find class java/lang/Object
     [java]          Resolving method get
     [java]             Found type 'com.google.gwt.core.client.Callback'
     [java]                [ERROR] Unable to find class java/lang/Object
     [java]                [ERROR] Unable to find class java/lang/Object
     [java]                [ERROR] Unable to find class java/lang/Object

Upvotes: 1

Views: 1104

Answers (2)

pavan kumar
pavan kumar

Reputation: 11

Latest gwt libraries (gwt-user-2.9.0.jar,gwt-dev-2.9.0.jar,gwt-servlet-2.9.0.jar) depends on following jars. After adding these jars in project issue got fixed.

ant.jar colt-1.2.0.jar asm-7.1.jar jsinterop-annotations-2.8.2-v20191108.jar base-1.0.0-beta-2.jar tapestry-util-text-4.0.2.jar

Upvotes: 0

Robert Newton
Robert Newton

Reputation: 1611

If something as fundamental as java.lang.Object is not available to the GWT compiler, it sounds like the gwt-user dependency is not available to the compiler. This jar library contains the JRE emulation classes.

Make sure gwt-user-2.9.0.jar is on the classpath when ant runs the GWT compiler.

Upvotes: 1

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