Prior to this commit, the `ExecutionGraphQlService` would throw `GrahphQLException` instances if errors happen early in the process, for example in some cases of document parsing/validation. Such exception would be thrown directly and not reflected in the GraphQL response if those are `GraphQLError`. This commit ensures that a fallback GraphQL response is created in this case and that it contains the relevant `GraphQLError` information. Fixes gh-1118
Spring for GraphQL

GraphQL support for Spring applications with GraphQL Java.
Code of Conduct
This project is governed by the Spring Code of Conduct. By participating, you are expected to uphold this code of conduct. Please report unacceptable behavior to spring-code-of-conduct@pivotal.io.
Contributing
All commits must include a Signed-off-by trailer at the end of each commit message to indicate that the contributor agrees to the Developer Certificate of Origin. For additional details, please refer to the blog post Hello DCO, Goodbye CLA: Simplifying Contributions to Spring.
Documentation
This project has reference documentation (published and source), an API reference. There are samples in the 1.0.x branch that will be moved out into a separate repository.
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Getting Support
Check out the Spring GraphQL tags on Stack Overflow. Commercial support is available too.
License
This project is released under version 2.0 of the Apache License.