I'm using version 1.6.4 and have been using this without any problems for many years. Earlier this year one of the TSA servers stopped working
which has worked for the last 4 months.
INFO Creating TSA client.
INFO Setting TSA hash algorithm: SHA-1
ERROR Problem occured
ExceptionConverter: java.net.SocketException: Connection reset
at java.base/java.net.SocketInputStream.read(SocketInputStream.java:186)
at java.base/java.net.SocketInputStream.read(SocketInputStream.java:140)
at java.base/java.io.BufferedInputStream.fill(BufferedInputStream.java:252)
at java.base/java.io.BufferedInputStream.read1(BufferedInputStream.java:292)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:351)
at java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:754)
at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:713)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1615)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1520)
at com.lowagie.text.pdf.TSAClientBouncyCastle.getTSAResponse(Unknown Source)
at com.lowagie.text.pdf.TSAClientBouncyCastle.getTimeStampToken(Unknown Source)
at com.lowagie.text.pdf.TSAClientBouncyCastle.getTimeStampToken(Unknown Source)
at com.lowagie.text.pdf.PdfPKCS7.getEncodedPKCS7(Unknown Source)
at net.sf.jsignpdf.SignerLogic.signFile(SignerLogic.java:387)
at net.sf.jsignpdf.Signer.signFiles(Signer.java:242)
at net.sf.jsignpdf.Signer.main(Signer.java:137)
INFO Finished: Creating of signature failed.