Importering af certifkat og læsening

Hej,

Jeg har indsæt et certifikat vha:
keytool -import -trustcacerts -alias name -file certifikat.crt -keystore KeyStore.kst.

Og dette er gået helt vildt - der stod at den var importeret tilsidst.

Nu prøver jeg så at tilgå den fra noget java-kode med:
try {
            KeyStore keyStore = null;
            String strCertPath = "c:"+File.separatorChar;
            SSLContext sslContext = SSLContext.getInstance("SSLv3");
            TrustManagerFactory trustMgtFactory = TrustManagerFactory.getInstance("SunX509");
            CertificateFactory cert = CertificateFactory.getInstance("X.509");
            String certs[] = {"KeyStore.kst"}; //Names pf files
            FileInputStream lo_fileinputstream = null;
            for(int i = 0;i < certs.length; i++)
            {
                String strCert = strCertPath + File.separatorChar + certs[i];
                lo_fileinputstream = new FileInputStream(strCert);
                X509Certificate servercacert;
                servercacert = (X509Certificate)cert.generateCertificate(lo_fileinputstream);
                lo_fileinputstream.close();
                String s1 = servercacert.getSerialNumber().toString();
                if(keyStore == null)
                {
                    keyStore = KeyStore.getInstance("JKS");
                    keyStore.load(null, null);
                }
                keyStore.setCertificateEntry(s1, servercacert);

            }
            trustMgtFactory.init(keyStore);
            sslContext.init(null, trustMgtFactory.getTrustManagers(), null);
            SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
            HttpsURLConnection.setDefaultSSLSocketFactory(sslSocketFactory);
        }
        catch (NoSuchAlgorithmException e)
        {
            e.printStackTrace();
        }
        catch (CertificateException e)
        {
            e.printStackTrace();
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
        catch (KeyStoreException e)
        {
            e.printStackTrace();
        }
        catch (KeyManagementException e)
        {
            e.printStackTrace();
        }


Dette giver giver følende exception:
java.security.cert.CertificateException: Could not parse certificate: java.io.IOException: DerInputStream.getLength(): lengthTag=109, too big.
    at sun.security.provider.X509Factory.engineGenerateCertificate(X509Factory.java:109)
    at java.security.cert.CertificateFactory.generateCertificate(CertificateFactory.java:271)
    at Webservice.main(Webservice.java:39)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:78)
Caused by: java.io.IOException: DerInputStream.getLength(): lengthTag=109, too big.
    at sun.security.util.DerInputStream.getLength(DerInputStream.java:530)
    at sun.security.util.DerValue.init(DerValue.java:346)
    at sun.security.util.DerValue.<init>(DerValue.java:302)
    at sun.security.provider.X509Factory.engineGenerateCertificate(X509Factory.java:104)
    ... 7 more

Er der nogle der kan hjælpe mig med at få den hentet rigtig ud?