if (generator.isAcceptable(type)) {
File packageDir;
if (generator instanceof BuilderGenerator) {
- Preconditions.checkState(type instanceof GeneratedTypeForBuilder);
+ Preconditions.checkState(type instanceof GeneratedTypeForBuilder, type.getFullyQualifiedName());
packageDir = packageToDirectory(parentDir, ((GeneratedTypeForBuilder)type).getPackageNameForBuilder());
} else {
packageDir = packageToDirectory(parentDir, type.getPackageName());