public CopyPackageVersionsResult clearSuccessfulVersionsEntries() {
        this.successfulVersions = null;
        return this;
    }
Removes all the entries added into SuccessfulVersions.

@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-codeartifact/src/main/java/com/amazonaws/services/codeartifact/model/CopyPackageVersionsResult.java