[DAFFODIL-2898] Compilation error with Java 21, add to CI

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.7.0
• Fix Version/s: 3.8.0
• Component/s: Infrastructure
• Assignee: Peter Katlic
• Reporter: Peter Katlic
• Created: 08/May/24 15:24
• Updated: 13/May/24 16:01
• Resolved: 10/May/24 13:16

Description

Using JDK 21 there is are compilation errors in Misc.scala:

[error] daffodil/daffodil-lib/src/main/scala/org/apache/daffodil/lib/util/Misc.scala:550:15: ambiguous reference to overloaded definition,
[error] both method position in class CharBuffer of type (x$1: Int)java.nio.CharBuffer
[error] and  method position in class Buffer of type ()Int
[error] match expected type ?
[error]     assert(cb.position == 0)
[error]               ^
[error] daffodil/daffodil-lib/src/main/scala/org/apache/daffodil/lib/util/Misc.scala:551:15: ambiguous reference to overloaded definition,
[error] both method limit in class CharBuffer of type (x$1: Int)java.nio.CharBuffer
[error] and  method limit in class Buffer of type ()Int
[error] match expected type ?
[error]     assert(cb.limit == 256)
[error]               ^
[error] two errors found
[error] (daffodil-lib / Compile / compileIncremental) Compilation failed

Tasks:

• Add Java 21 to CI
• Fix compilation error