fix: Small codegen libraries were removed from the Project Structure (#…

…7042)

Partially related to #6547

The EmptyJarFilter is using a heuristic that is really not robust
https://github.com/bazelbuild/intellij/blob/3f81565b4aede217e160adc97a3f3b619bfa0498/java/src/com/google/idea/blaze/java/sync/importer/emptylibrary/EmptyLibraryFilter.java#L42-L50

Co-authored-by: Tomasz Pasternak <tomasz.pasternak@jetbrains.com>

java/src/com/google/idea/blaze/java/sync/importer/emptylibrary/EmptyLibraryFilter.java

@@ -67,7 +67,7 @@ static boolean isEnabled() {
     return Arrays.stream(EmptyLibraryFilterSettings.EP_NAME.getExtensions())
         .findFirst()
         .map(EmptyLibraryFilterSettings::isEnabled)
-        .orElse(true);
+        .orElse(false);
   }
 
   @Override

java/tests/unittests/com/google/idea/blaze/java/sync/importer/BlazeJavaWorkspaceImporterTest.java

@@ -97,6 +97,8 @@
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
 import javax.annotation.Nullable;
+
+import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
@@ -1085,6 +1087,7 @@ public void testLibraryDependenciesWithJdepsButNoTarget() {
   }
 
   @Test
+  @Ignore // We disabled empty library exclusion and it is unclear if we will ever reenable it
   public void testEmptyLibraryExcluded() {
     ProjectView projectView =
         ProjectView.builder()