Interestingly, I've run into exactly the same issue yesterday, but other way
around: my code compiles in GWT 2.9 (and javac and Eclipse), but not in GWT
2.8.2 which refuses to accept parameters for one method with generics-heavy
signature.
I've even explored the possibility to force GWT 2.8.2 to use newer ecj, but
it's bundled in gwt.dev.jar.
Any help is appreciated.
-gkresic.
On 29. 05. 2020. 14:07, David Nouls wrote:
I switched from GWT 2.8.2 to GWT 2.9.0 and I get some GWTC compilation
errors when compiling with certain generic constructs.
It compiles fine with JDK11 and in IntelliJ, but GWTC no longer seems to
support this:
[INFO] --- gwt-maven-plugin:1.0.0:compile (default-compile) @
cloud.platform.ui.demo-app ---
[INFO] Compiling module com.swift.cloud.platform.ui.demo.Demo
[INFO] Tracing compile failure path for type
'com.swift.cloud.platform.ui.webcomponent.widget.query.QueryEditor'
[INFO] [ERROR] Errors in
'jar:file:/home/dnouls/liteevolutiontfr/platform/main/ui/webcomponent/target/cloud.platform.ui.webcomponent-0.0.5-SNAPSHOT.jar!/com/swift/cloud/platform/ui/webcomponent/widget/query/QueryEditor.java'
[INFO] [ERROR] Line 376: The method byKey(IFilterKey<KEY>) in the
type QueryConfiguration is not applicable for the arguments (capture#67-of ?
extends IFilterKey<?>)
[INFO] [ERROR] Aborting compile due to errors in some input files
A small piece of the QueryEditor class where this error is reported:
public void setFilterKeys(Set<? extends IFilterKey<?>> filterKeys) {
this.allowedFilterKeys = filterKeys.stream().filter(key ->
config.byKey(key).isPresent()).collect(Collectors.toCollection(ArrayList::new));
// sort by label
allowedFilterKeys.sort(Comparator.comparing(config.getLabels()::getKeyLabel));
}
This is the method that it is trying to call:
@SuppressWarnings("unchecked")
public <KEY, VO, CONFIG extends AbstractCriteria<KEY, VO, CONFIG>>
Optional<CONFIG> byKey(IFilterKey<KEY> key) {
return Optional.ofNullable((CONFIG) byKey.get(key));
}
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