Fix GRPC exporter stringRepresentation tests

Also update OtlpGrpcMetricExporterTest and OtlpGrpcSpanExporterTest to match
the actual toString() format that was changed in commit f720735.

Author: trask

exporters/otlp/all/src/testDefaultSender/java/io/opentelemetry/exporter/otlp/metrics/OtlpGrpcMetricExporterTest.java

@@ -87,8 +87,6 @@ void stringRepresentation() {
       assertThat(metricExporter.toString())
           .matches(
               "OtlpGrpcMetricExporter\\{"
-                  + "exporterName=otlp, "
-                  + "type=metric, "
                   + "endpoint=http://localhost:4317, "
                   + "endpointPath=.*, "
                   + "timeoutNanos="
@@ -100,9 +98,12 @@ void stringRepresentation() {
                   + "compressorEncoding=null, "
                   + "headers=Headers\\{User-Agent=OBFUSCATED\\}, "
                   + "retryPolicy=RetryPolicy\\{.*\\}, "
+                  + "componentLoader=.*, "
+                  + "exporterType=OTLP_GRPC_METRIC_EXPORTER, "
+                  + "internalTelemetrySchemaVersion=LEGACY, "
                   + "aggregationTemporalitySelector=AggregationTemporalitySelector\\{.*\\}, "
                   + "defaultAggregationSelector=DefaultAggregationSelector\\{.*\\}, "
-                  + "memoryMode=IMMUTABLE_DATA"
+                  + "memoryMode=(IMMUTABLE_DATA|REUSABLE_DATA)"
                   + "\\}");
     }
   }

exporters/otlp/all/src/testDefaultSender/java/io/opentelemetry/exporter/otlp/traces/OtlpGrpcSpanExporterTest.java

@@ -36,8 +36,6 @@ void stringRepresentation() {
       assertThat(spanExporter.toString())
           .matches(
               "OtlpGrpcSpanExporter\\{"
-                  + "exporterName=otlp, "
-                  + "type=span, "
                   + "endpoint=http://localhost:4317, "
                   + "endpointPath=.*, "
                   + "timeoutNanos="
@@ -49,7 +47,10 @@ void stringRepresentation() {
                   + "compressorEncoding=null, "
                   + "headers=Headers\\{User-Agent=OBFUSCATED\\}, "
                   + "retryPolicy=RetryPolicy\\{.*\\}, "
-                  + "memoryMode=IMMUTABLE_DATA"
+                  + "componentLoader=.*, "
+                  + "exporterType=OTLP_GRPC_SPAN_EXPORTER, "
+                  + "internalTelemetrySchemaVersion=LEGACY, "
+                  + "memoryMode=(IMMUTABLE_DATA|REUSABLE_DATA)"
                   + "\\}");
     }
   }