[Demonstration 1]

[Buggy Method]
public <T extends Task> T prepend(TaskConnection<T> connection) {
    prependedConnections.add(connection);
    return connection.target.get();
}

[Buggy Hunk]
return connection.target.get();

[Patch]
return connection.getTarget();

[Demonstration 2]

[Buggy Method]
public int attachFragment(Fragment fragment, boolean addToBackStack) {
    if (addToBackStack)
        getFragmentManager().beginTransaction().replace(getParentContainerId(), fragment).addToBackStack(fragment.getClass().getCanonicalName()).commit();
    else
        getFragmentManager().beginTransaction().replace(getParentContainerId(), fragment).commit();
    return getFragmentManager().getBackStackEntryCount();
}

[Buggy Hunk]
.addToBackStack(fragment.getClass().getCanonicalName())

[Patch]
.addToBackStack(getPackageName())

[Demonstration 3]

[Buggy Method]
@NotNull
@Override
@SuppressWarnings("unchecked")
public <T> Optional<? extends T> resolveBean(@NotNull Class<T> type, Object instance) {
    if (type.isAssignableFrom(Injector.class)) {
        return Optional.of((T) this);
    }
    if (type.isAnnotation()) {
        Class<? extends Annotation> annotationType = (Class<? extends Annotation>) type;
        return Optional.of((T) instance.getClass().getAnnotation(annotationType));
    }
    T value = null;
    for (BeanProvider beanProvider : beanProviders) {
        if (beanProvider.canProvideBean(type)) {
            value = beanProvider.provideBean(type, instance, getInjector(instance));
            if (value != null)
                break;
        }
    }
    if (value != null)
        return Optional.ofNullable(value);
    return super.resolveBean(type, instance);
}

[Buggy Hunk]
return Optional.of((T) instance.getClass().getAnnotation(annotationType));

[Patch]
return Optional.ofNullable((T) instance.getClass().getAnnotation(annotationType));