Summary

When using BasicDBObject.parse(String) on OpenJDK 11.0.8 it yields an NPE directly on the signature without any further stacktrace. 

We first noticed this on a couple internal Jenkins agents that suddenly were displaying a intermittent failure of a category of tests, troubleshooting narrowed it down to a single worker that was running a separate jdk. Using other agents solved the problem. 

How to Reproduce

Use Java OpenJDK 11.0.8 and run a main or a test-method with the mongodb-java-driver 3.8.2 on the classpath. Use  

@Test
public void simpleTest() {
   String json = "{ \"_id\" : \"0\" }";
   BasicDBObject.parse(json);
}

Results in: 

This is output when ran from maven. 
16:01:14 [ERROR] Errors: 16:01:14 [ERROR] MongoDBTest.simpleTest:19 » NullPointer

Resolved by:

We resolved this problem by updating to the latest and greatest, but it worked already with the next patch-bump to OpenJDK 11.0.9.