uncertain, so it is difficult to achieve the relief, such a
situation is extremely unfavorable for the
maintenance of the plaintiff's rights.
Tort liability, on the other hand, is mainly divided
into cessation of infringement, elimination of
influence, apology, and compensation for damages.
Compared with the liability for breach of contract, the
defendant is ordered to fulfill the tort liability is more
achievable. Moreover, if the infringer constitutes
intentional and serious circumstances, the infringer
can also be punitive damages, although the judicial
practice has not appeared in the situation, at least
there is the possibility of increasing the amount of
compensation. According to the current judicial cases
can also be known, the damages of the tort claim are
much higher than the amount of compensation for
breach of contract, therefore, the plaintiff almost
always chooses the tort claim.(Zhao,2023) This
suggests that tort claims are more likely to protect the
owners' rights open source software than contract
claims.
In practice, the application of an infringement
claim presents the problem of the difficulty of
determining the amount of damages. The distribution
of open-source software essentially constitutes a
general license without license fees, which means that
it is difficult to quantify the actual loss or royalties of
the right holder when determining the amount of
compensation. Determining the amount of
compensation based on the infringer's proceeds of the
offense would require the infringer to provide
information on his or her profits. However, if the
infringer does not use the infringing software for
production or commercial operations, or is unwilling
to provide such information, the determination of the
amount of compensation is again difficult. In such
cases, it may ultimately be necessary to rely on
statutory damages provisions to determine the
amount of compensation. In judicial practice, it is
usually at the discretion of the judge to determine the
amount of damages to be awarded.(Chen,2023)
However, the remedy of tort is still relatively more
achievable and more conducive to the protection of
the licensor's rights than a claim for breach of
contract.
2.2.2 Extraterritorial Perspectives
Currently, the U.S. judicial practice has reached
basically a consensus, that is, open source software
rights holders can claim infringement of copyright
infringement and also can claim breach of contract. In
the United States judicial practice, in the early stage
of the development of open source software, the
United States court hearing open source software
cases, the right to copyright infringement of the cause
of action, and request for injunctive and damages
relief to support the claim. (Zhang,2004)However,
with the development of open source software, the
U.S. courts also believe that the violation of the GPL
open source license is a breach of contract, and does
not constitute copyright infringement, the copyright
infringement of injunctive relief filed by the right
holder of the lawsuit shall be rejected (Robert
JACOBSEN v. Matthew KATZER and Kamind
Associates, Inc, 535 F.3d 1373).With the
increasing number of open source software
infringement cases and the development of U.S. case
law, the courts now have a new solution to the idea
that, in the case of a software user's violation of an
open source license, the right holder can claim
injunctive relief for copyright infringement as well as
seek relief for breach of contract under contract law.
For example, in Jacobsen v. Katzer, the Court of
Appeals for the Federal Circuit held that the terms of
a license can constitute "copyright conditions" rather
than mere "contracts", and that both should be
recognized by law(2017 U.S. Dist, No. 16-CV-
06982-JSC).
However, FSF and its founder Richard Stallman
have always opposed the legal characterization of a
GPL license as a contract. The reason is that The
United States is a common law country that
distinguishes between state and federal law, with
contract law falling under state law and copyright law
falling under federal law. The contract law of each
state has some differences, if the GPL license is
qualified as a contract, or the breach of contract to
provide relief through the contract law, there will be
uncertainty in the process of defending the rights,
which may lead to inconsistency in the judicial
decision; moreover, the state law is lower than the
federal law, if the GPL license applies to the rules of
the contract law, the effect will be lower than the
federal law of the copyright law, which will not be
conducive to the achievement of the functional
purpose of the GPL license. Richard Stalman insisted
that software should not be privately owned, stressing
that society needs information that can be freely read,
modified, and enhanced, not closed "black box"
software. He argued that proprietary control by
software owners deprived users of their freedom and
limited their autonomy and that society should
encourage the spirit of volunteerism and mutual
assistance, rather than treating mutual assistance as
"piracy"(Stallman,2024). Therefore, he created a
strict GPL license to guarantee the continuation of
software freedom and open source. The relativity of