Return default DbInfo when connection is null

[ebyhr]

Otherwise, this method may cause NPE.

[linux-foundation-easycla]

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• ✅ login: ebyhr / name: Yuya Ebihara (81b9448)

[laurit]

@ebyhr is this a hypothetical NPE or did you actually get one? I think the connection could be null in

opentelemetry-java-instrumentation/instrumentation/jdbc/library/src/main/java/io/opentelemetry/instrumentation/jdbc/datasource/OpenTelemetryDataSource.java

Line 152 in 0fb44fa

dataSourceInstrumenter.end(context, delegate, getDbInfo(connection), error);

[ebyhr]

@laurit Thanks for your review. I actually received NPE. I'm still investigating why the connection was null.