return Collections.singletonList(new ExceptionPlaceholder(throwables.get(0), objectOutputStreamCreator, dejaVu));
        } else {
            List<ExceptionPlaceholder> placeholders = new ArrayList<ExceptionPlaceholder>(throwables.size());
            for (Throwable cause : throwables) {
                placeholders.add(new ExceptionPlaceholder(cause, objectOutputStreamCreator, dejaVu));
            }

import org.gradle.internal.InternalTransformer;

import java.io.IOException;
import java.io.OutputStream;
import java.util.HashSet;

public class TopLevelExceptionPlaceholder extends ExceptionPlaceholder {
    private static final long serialVersionUID = 1L;

        return getObjectTransformer().transform(obj);
    }

    protected Object doResolveObject(Object obj) throws IOException {
        if (obj instanceof TopLevelExceptionPlaceholder) {
            return ((ExceptionPlaceholder) obj).read(getClassNameTransformer(), getObjectInputStreamCreator());
        }
        return obj;
    }

    protected final InternalTransformer<Class<?>, String> getClassNameTransformer() {

Class <org.gradle.internal.serialize.ExceptionPlaceholder$1> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (ExceptionPlaceholder.java:0)
Class <org.gradle.internal.serialize.ExceptionPlaceholder$2> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (ExceptionPlaceholder.java:0)