fix

Author: zeitlinger

sdk-extensions/incubator/src/main/java/io/opentelemetry/sdk/extension/incubator/fileconfig/DeclarativeConfigContext.java

@@ -42,6 +42,7 @@ List<Closeable> getCloseables() {
     return Collections.unmodifiableList(closeables);
   }
 
+  @Nullable
   public MeterProvider getMeterProvider() {
     return meterProvider;
   }

sdk-extensions/incubator/src/main/java/io/opentelemetry/sdk/extension/incubator/fileconfig/LogRecordProcessorFactory.java

@@ -5,6 +5,7 @@
 
 package io.opentelemetry.sdk.extension.incubator.fileconfig;
 
+import io.opentelemetry.api.metrics.MeterProvider;
 import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.BatchLogRecordProcessorModel;
 import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.LogRecordExporterModel;
 import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.LogRecordProcessorModel;
@@ -52,7 +53,10 @@ public LogRecordProcessor create(
       if (batchModel.getScheduleDelay() != null) {
         builder.setScheduleDelay(Duration.ofMillis(batchModel.getScheduleDelay()));
       }
-      builder.setMeterProvider(context.getMeterProvider());
+      MeterProvider meterProvider = context.getMeterProvider();
+      if (meterProvider != null) {
+        builder.setMeterProvider(meterProvider);
+      }
 
       return context.addCloseable(builder.build());
     }

sdk-extensions/incubator/src/main/java/io/opentelemetry/sdk/extension/incubator/fileconfig/SpanProcessorFactory.java

@@ -5,6 +5,7 @@
 
 package io.opentelemetry.sdk.extension.incubator.fileconfig;
 
+import io.opentelemetry.api.metrics.MeterProvider;
 import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.BatchSpanProcessorModel;
 import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.SimpleSpanProcessorModel;
 import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.SpanExporterModel;
@@ -47,7 +48,10 @@ public SpanProcessor create(SpanProcessorModel model, DeclarativeConfigContext c
       if (batchModel.getScheduleDelay() != null) {
         builder.setScheduleDelay(Duration.ofMillis(batchModel.getScheduleDelay()));
       }
-      builder.setMeterProvider(context.getMeterProvider());
+      MeterProvider meterProvider = context.getMeterProvider();
+      if (meterProvider != null) {
+        builder.setMeterProvider(meterProvider);
+      }
 
       return context.addCloseable(builder.build());
     }