Details
Blocker Description
When building Sqoop 1.4.7 with Java SDK 1.6.0_45 and Ant 1.7.1 on Windows in MinGW64, I obtain these build errors:
[ivy:resolve] Server access Error: Remote host closed connection during handshake url=https://repository.cloudera.com/content/repositories/releases/org/apache/avro/avro-mapred/1.8.1/avro-mapred-1.8.1-hadoop2.pom
[ivy:resolve] Server access Error: Remote host closed connection during handshake url=https://repository.cloudera.com/content/repositories/releases/org/apache/avro/avro-mapred/1.8.1/avro-mapred-1.8.1-hadoop2.jar
[ivy:resolve] Server access Error: Remote host closed connection during handshake url=https://repository.cloudera.com/content/repositories/staging/org/apache/avro/avro-mapred/1.8.1/avro-mapred-1.8.1-hadoop2.pom
[ivy:resolve] Server access Error: Remote host closed connection during handshake url=https://repository.cloudera.com/content/repositories/staging/org/apache/avro/avro-mapred/1.8.1/avro-mapred-1.8.1-hadoop2.jar
I experienced similar build errors on a different project, which I traced to this issue: https://stackoverflow.com/questions/21245796/javax-net-ssl-sslhandshakeexception-remote-host-closed-connection-during-handsh/22629008
The problem, however, is that because this particular build of Sqoop requires Java 1.6, TLS v1.2 is unsupported, according to here: https://stackoverflow.com/questions/33364100/how-to-use-tls-1-2-in-java-6
which is a problem because some public repositories have dropped support for TLS versions prior to 1.2, as reported here: https://github.com/Microsoft/vcpkg/issues/2969
and here: https://blog.github.com/2018-02-23-weak-cryptographic-standards-removed/
If it is impossible now to pull the upstream dependencies when building via Ant due to TLS 1.2 being unsupported in Java 1.6, then this is a critical dependency conflict.
If additional configuration steps are required to be able to successfully build, they are not documented in any of the Sqoop documentation that I have found.