Major Release 4.0

[KarstenSchnitter]

There have been a lot of changes in Java and the logging frameworks, that need to be integrated into this library. This will require a new major version. The following changes are suggested, please leave comments and further suggestions in this issue.

Upgrades:

• Java 17 required, Jakarta bindings (e.g servlet)
• SLF4j 2.x, with necessary upgrades of Logback (1.4.x+) and Log4j2

Removals:

• cf-java-logging-support-jersey (Jersey integration)
• cf-java-logging-support-servlet (to be replaced by cf-java-logging-support-servlet-jakarta)
• cf-java-monitoring-custom-metrics-clients/* (custom metrics support)
• sample (Jersey sample app, Spring Boot will stay)

New Features:

• SPI support for Co ntextFieldSupplier, LogbackContextFieldSupplier, Log4jContextFieldSupplier
• SPI support for DynamicLogLevelConfiguration and DynamicLogLevelProcessor
• W3CTraceContext support
• OpenTelemetry SpanContext support
• OpenTelemetry SAP CF resource provider (to provide meaningful resource attributes)
• SAP Cloud Logging OpenTelemetry binding auto-configuration

Refactors:

• Move Dynamic Log Level feature to own module, so that java-jwt dependency is no longer required by cf-java-logging-support-servlet

[ldxian]

Hi @KarstenSchnitter, is there any timeline for this major release?