WriteOptions.setTtl(Duration) 0-Value assertion allows >= 0 instead of >0 Duration objects

[thst71]

The spring-data-cassandra/src/main/java/org/springframework/data/cassandra/core/cql/WriteOptions.java#setTtl(Duration) method has an assertion on duration.isNegative, but it must assert for >0 not >=0

The setTtl(long) method is correct.

[mp911de]

Good catch. Do you want to submit a pull request to fix the issue?

[thst71]

Jepp, I will send you sth, I just forked the project.