error report2

Caused by: java.security.ProviderException: java.security.KeyException
        at sun.security.ec.ECKeyPairGenerator.generateKeyPair(ECKeyPairGenerator.java:146)
        at java.security.KeyPairGenerator$Delegate.generateKeyPair(KeyPairGenerator.java:704)
        at sun.security.ssl.ECDHCrypt.<init>(ECDHCrypt.java:78)
        at sun.security.ssl.ClientHandshaker.serverKeyExchange(ClientHandshaker.java:717)
        at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:278)
        at sun.security.ssl.Handshaker.processLoop(Handshaker.java:913)
        at sun.security.ssl.Handshaker.process_record(Handshaker.java:849)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1035)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1344)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1371)
        ... 18 more
Caused by: java.security.KeyException
        at sun.security.ec.ECKeyPairGenerator.generateECKeyPair(Native Method)
        at sun.security.ec.ECKeyPairGenerator.generateKeyPair(ECKeyPairGenerator.java:126)
        ... 27 more