ADDITIONAL SYSTEM INFORMATION :
Linux 2.6.18-348.el5
Java 1.8.0_74_x86_64

A DESCRIPTION OF THE PROBLEM :
Once we enabled JDBC over TLS with HANA database, we are seeing performance degradation in terms of time taken. Given below stack takes on an average 94 secs.

com.sun.crypto.provider.GCTR.doFinal(GCTR.java:117)
com.sun.crypto.provider.GaloisCounterMode.doLastBlock(GaloisCounterMode.java:343)
com.sun.crypto.provider.GaloisCounterMode.encryptFinal(GaloisCounterMode.java:419)
com.sun.crypto.provider.CipherCore.finalNoPadding(CipherCore.java:1025)
com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:984)
com.sun.crypto.provider.AESCipher.engineDoFinal(AESCipher.java:479)
javax.crypto.CipherSpi.bufferCrypt(CipherSpi.java:776)
javax.crypto.CipherSpi.engineDoFinal(CipherSpi.java:730)
              javax.crypto.Cipher.doFinal(Cipher.java:2460)
sun.security.ssl.CipherBox.encrypt(CipherBox.java:396)
sun.security.ssl.EngineOutputRecord.write(EngineOutputRecord.java:300)
sun.security.ssl.EngineOutputRecord.write(EngineOutputRecord.java:225)
sun.security.ssl.EngineWriter.writeRecord(EngineWriter.java:186)
sun.security.ssl.SSLEngineImpl.writeRecord(SSLEngineImpl.java:1300)
sun.security.ssl.SSLEngineImpl.writeAppRecord(SSLEngineImpl.java:1271)
sun.security.ssl.SSLEngineImpl.wrap(SSLEngineImpl.java:1186)
         javax.net.ssl.SSLEngine.wrap(SSLEngine.java:469)
com.sap.db.jdbc.SecureSession._encodeBytes(SecureSession.java:777)


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
This issue is not consistent. Its frequency is 250 out of a million.
There is no specific use case. It occurs when a JDBC query is done on HANA database.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
JDBC over TLS query should have executed within a second.
ACTUAL -
JDBC over TLS query execution took more than 94 seconds.

CUSTOMER SUBMITTED WORKAROUND :
We do not have any workaround for this. We would appreciate if you can provide.

FREQUENCY : occasionally