fix 'bytes' unit by using 'By'

Author: SylvainJuge

jmx-scraper/src/integrationTest/java/io/opentelemetry/contrib/jmxscraper/target_systems/JvmIntegrationTest.java

@@ -78,95 +78,95 @@ protected MetricsVerifier createMetricsVerifier() {
             metric ->
                 metric
                     .hasDescription("current heap usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithoutAttributes())
         .add(
             "jvm.memory.heap.init",
             metric ->
                 metric
                     .hasDescription("current heap usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithoutAttributes())
         .add(
             "jvm.memory.heap.max",
             metric ->
                 metric
                     .hasDescription("current heap usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithoutAttributes())
         .add(
             "jvm.memory.heap.used",
             metric ->
                 metric
                     .hasDescription("current heap usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithoutAttributes())
         .add(
             "jvm.memory.nonheap.committed",
             metric ->
                 metric
                     .hasDescription("current non-heap usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithoutAttributes())
         .add(
             "jvm.memory.nonheap.init",
             metric ->
                 metric
                     .hasDescription("current non-heap usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithoutAttributes())
         .add(
             "jvm.memory.nonheap.max",
             metric ->
                 metric
                     .hasDescription("current non-heap usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithoutAttributes())
         .add(
             "jvm.memory.nonheap.used",
             metric ->
                 metric
                     .hasDescription("current non-heap usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithoutAttributes())
         .add(
             "jvm.memory.pool.committed",
             metric ->
                 metric
                     .hasDescription("current memory pool usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithAttributes(memoryAttributes))
         .add(
             "jvm.memory.pool.init",
             metric ->
                 metric
                     .hasDescription("current memory pool usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithAttributes(memoryAttributes))
         .add(
             "jvm.memory.pool.max",
             metric ->
                 metric
                     .hasDescription("current memory pool usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithAttributes(memoryAttributes))
         .add(
             "jvm.memory.pool.used",
             metric ->
                 metric
                     .hasDescription("current memory pool usage")
-                    .hasUnit("by")
+                    .hasUnit("By")
                     .isGauge()
                     .hasDataPointsWithAttributes(memoryAttributes))
         .add(

jmx-scraper/src/main/resources/jvm.yaml

@@ -28,7 +28,7 @@ rules:
           name: param(name)
 
   - bean: java.lang:type=Memory
-    unit: by
+    unit: By
     prefix: jvm.memory.
     mapping:
       HeapMemoryUsage.committed:
@@ -66,7 +66,7 @@ rules:
 
   - bean: java.lang:type=MemoryPool,name=*
     type: gauge
-    unit: by
+    unit: By
     metricAttribute:
       name: param(name)
     mapping: