MongoDB Document Update in Java: coding error or driver bug?

Question

I'm using MongoDB Java Driver v3.2.2 and I use the following instruction to add a new String array field into an existing document:

myMongoCollection.updateOne(new Document("id", id), Updates.set("arrayField", Arrays.asList(new Document("strField", strValue))));

It creates the following exception:

org.bson.codecs.configuration.CodecConfigurationException: Can't find a codec for class java.util.Arrays$ArrayList.

Am I doing a coding error or is it related to the Driver bug as suggested here (link)?

If it is related to the driver bug, any hint how I can easily get the latest not-yet-released version (3.3) where is has been fixed (ie. how can I easily create a JAR file, knowing that GIT is completely new to me)?

Many thanks, Tom

Wan B. · Accepted Answer · 2016-06-20 04:10:44Z

1

In mongodb-java-driver v3.2.2, you could use Document instead of Updates.set builder. See also Updating Documents

import static com.mongodb.client.model.Filters.eq;

myMongoCollection.updateOne(eq("id", id), new Document("$set", new Document ("arrayField", Arrays.asList(new Document("strField", strValue)))));

Alternatively, if the fix has gone into the master branch, you could build the jar from git:

$ git clone https://github.com/mongodb/mongo-java-driver.git
$ cd mongo-java-driver
$ ./gradlew

The resulting jar would be in build/libs directory.

answered Jun 20, 2016 at 4:10

Wan B.

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