Scott Carey questions

Scott Carey answers

• Scala Try's toOption method returns Some(null)
• Internal inconsistency detected during lambda shape analysis
• Why don't Kafka's seekToBeginning and seekToEnd work with assign?
• The most idiomatic way to perform conditional concatenation of strings in Scala
• Set-returning functions are not allowed in UPDATE when using Postgres 10
• Understanding internal fragmentation properties of Hotspot JVM process
• why is "test-jar" dependency required for "mvn compile"
• What GC parameters is a JVM running with?
• Optimizing Long.bitCount
• ClassValue in Java 7