Missing value `monotonic = true` when using [MicroProfile @counted] annotation

[thomassuedbroecker]

Problem:

When I update from MicroProfile 2.1. to MicroProfile 3.0. the value monotonic = true is missing, when we use the [MicroProfile @counted] annotation (https://github.com/eclipse/microprofile-metrics/blob/master/api/src/main/java/org/eclipse/microprofile/metrics/annotation/Counted.java)

• Related source code:

@Counted(name = "getArticlesCounted",
            absolute = true,
            displayName = "web-api /getmultiple count",
            description = "Number of times com.ibm.webapi.apis.GetArticles.getArticles has been invoked",
            monotonic = true)

• Error message:

ERROR] /usr/src/app/src/main/java/com/ibm/webapi/apis/GetArticles.java:[53,29] cannot find symbol
  symbol:   method monotonic()
  location: @interface org.eclipse.microprofile.metrics.annotation.Counted
[INFO] 1 error

Configuration:

• Changing code from Microprofile 2.1. to MicroProfile 3.0.
• Using container image: open-liberty:19.0.0.9-kernel-java11

Related documentation in openliberty.

[pilhuhn]

This is an intentional change in MP-2.0 because the old default behaviour was @Counted(monotonic=false), which is not what folks expected. In 2.0 this changed and @Counted is always monotonic. If you need the monotonic=false behaviour, then have a look at @ConcurrentGauge