News
Ion Java 1.5.0 Released
26 June 2019
From version 1.4.0 forward ion-java moved to a new maven group id and java package name: com.amazon.ion. This move was necessary to keep the publishing of Amazon libraries in maven consistent.
We’ll keep supporting software.amazon.ion by publishing mirrored releases but users are strongly encouraged to migrate. The migration is trivial, the only differences are the maven group id and Java package names.
1.5.0 release notes:
- Fixed a bug in IonReader.getTypeAnnotations when used with text data that contains a symbol table.
- Made the messages of certain IllegalStateExceptions more descriptive.
- Added an Equivalence option to specify an epsilon to use when comparing Ion float values.
- Reduced memory allocations and garbage collections required when stepping in and out of containers in the binary writer, resulting in a speedup (5%), heap size reduction (4%), GC count reduction (56%), GC time reduction (13%), and Eden Space churn reduction (71%) when writing a sample of container-heavy test data.
- Reduced memory allocations and garbage collections required when setting struct field names in the binary writer, resulting in a speedup (12.6%), reduction in heap usage (17%), and elimination of garbage collections when writing a sample of field-heavy test data.
- Cached the reference to the current container context in the binary writer to reduce repetitive List lookups, resulting in a speedup (10%) when writing a sample of container-heavy test data.
| Release Notes |