Comparing source compatibility of  against 
***  MODIFIED CLASS: PUBLIC FINAL io.opentelemetry.sdk.testing.assertj.AttributesAssert  (not serializable)
	===  CLASS FILE FORMAT VERSION: 52.0 <- 52.0
	+++  NEW METHOD: PUBLIC(+) io.opentelemetry.sdk.testing.assertj.AttributesAssert doesNotContainKey(io.opentelemetry.api.common.AttributeKey)
	+++  NEW METHOD: PUBLIC(+) io.opentelemetry.sdk.testing.assertj.AttributesAssert doesNotContainKey(java.lang.String)