Example
protected void finalize() throws Throwable {
try {
Provider provider = Security.getProvider(PROVIDER_NAME);
provider.clear();
}
finally {
super .finalize();
}
}

private static final String PROVIDER_NAME = "provider";
Solution
Use a cleanup method that is explicitly invoked instead of the finalize() method.
public void free() {
Provider provider = Security.getProvider(PROVIDER_NAME);
provider.clear();
}

private static final String PROVIDER_NAME = "provider";