Error message compiling widgetsets. Vaadin 8 in a Windows 11 PC

Vaadin 6 / 7 / 8
1

Hello,

I have a vaadin 8 project which maven compiles and packages succesfully in a Windows 10 PC.

When I try to do maven install in a new PC (Windows 11) it fails with the next message:

[INFO] — vaadin-maven-plugin:8.10.0:compile (default) @ arq_siasComponentsVaadin —
[INFO] auto discovered modules [VAADIN.widgetsets.SiasWidgetSet]
[INFO] Compiling module VAADIN.widgetsets.SiasWidgetSet
[INFO] [ERROR] Unexpected internal compiler error
[INFO] java.lang.RuntimeException: Unexpected error deserializing AST for ‘java.lang.Throwable’
…
[INFO] Caused by: java.lang.ClassNotFoundException: com.google.gwt.dev.jjs.ast.JPrimitiveType
[INFO] at java.lang.Class.forNameImpl(Native Method)
[INFO] at java.lang.Class.forName(Class.java:411)
[INFO] at java.io.ClassCache$FutureValue.get(ClassCache.java:177)
…
[INFO] at com.google.gwt.dev.javac.CompilationUnit.getTypes(CompilationUnit.java:369)
[INFO] … 30 more
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 24.610 s
[INFO] Finished at: 2024-03-05T12:38:59+01:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.vaadin:vaadin-maven-plugin:8.10.0:compile (default) on project vaadinProject: Command [[
[ERROR] C:\Program Files\IBM\WebSphere\AppServer\java\8.0\jre\bin\java -Xmx1G -Dgwt.jjs.javaArgs=-Xmx1G -Dgwt.persistentunitcache=false com.google.gwt.dev.Compiler -logLevel INFO -style OBF -war c:[…]\vaadinProject\target\classes\VAADIN\widgetsets -localWorkers 12 -failOnError -XfragmentCount -1 -sourceLevel auto -gen c:[…]\vaadinProject\target.generated VAADIN.widgetsets.SiasWidgetSet
[ERROR] ]] failed with status 1
[ERROR] → [Help 1]

Please, does someone know what configuration I miss or what is wrong?

Thanks in advance.

Luis B.
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2

Based on this: C:\Program Files\IBM\WebSphere\AppServer\java\8.0\jre\bin\java you’re using a JRE while you need a JDK

3

Hello, Olli T,

Thank you for your answer.

My environment variables:
JAVA_HOME=C:\Program Files\IBM\WebSphere\AppServer\java\8.0
path= …; C:\Program Files\IBM\WebSphere\AppServer\java\8.0\bin; …

both are the same in Windows 11 PC and Windows 10 PC

the command “C:\Program Files\IBM\WebSphere\AppServer\java\8.0\jre\bin\java -Xmx1G -Dgwt.jjs.javaArgs=-Xmx1G -Dgwt.persistentunitcache=false com.google.gwt.dev.Compiler -logLevel INFO -style OBF -war c:[…]\vaadinProject\target\classes\VAADIN\widgetsets -localWorkers 12 -failOnError -XfragmentCount -1 -sourceLevel auto -gen c:[…]\vaadinProject\target.generated VAADIN.widgetsets.SiasWidgetSet” is executed by the vaadin-maven-plugin.

Luis B.

4

Are you running it inside Eclipse? It might be taking the workspace’s default Java (which may be a JRE)

5

Hello, Olli T.

No, I’m running “mvn clean install” from the windows command line (cmd)

In the windows 10 PC I have the ibm jdk version:
java version “1.8.0_351”
Java™ SE Runtime Environment (build 8.0.7.20 - pwa6480sr7fp20-20221020_01(SR7 FP20))
IBM J9 VM (build 2.9, JRE 1.8.0 Windows 10 amd64-64-Bit Compressed References 20220929_37824 (JIT enabled, AOT enabled)
OpenJ9 - 02180fe
OMR - 48fc32a
IBM - bf759bf)
JCL - 20220922_01 based on Oracle jdk8u351-b10

In the windows 11 PC the version of the ibm jdk is:
java version “1.8.0_401”
Java™ SE Runtime Environment (build 8.0.8.20 - pwa6480sr8fp20-20240112_01(SR8 FP20))
IBM J9 VM (build 2.9, JRE 1.8.0 Windows 11 amd64-64-Bit Compressed References 20231219_62619 (JIT enabled, AOT enabled)
OpenJ9 - 08d2144
OMR - 7a5005b
IBM - 7394519)
JCL - 20231221_01 based on Oracle jdk8u401-b10

If in the windows 11 machine I execute the “mvn clean install” with the jdk that I have on the windows 10, the compilation works properly

It is clear that the difference is in the versions of IBM’s jdk 8, I have no idea what’s wrong.

6

https://github.com/gwtproject/gwt/issues/9789

7

OK, thanks a lot. Sorry if I wasted your time. I didn’t find this when I was searching.