Illformed appmaps get generated

There are circumstances where the events section of an appmap created by appmap-java is not created correctly.

For example, the appmap for org.elasticsearch.search.aggregations.bucket.terms.BytesKeyedBucketOrdsTests contains the sequences 74},,{" and $"},]}:

Alans-MacBook-Pro org.elasticsearch.search.aggregations$ tail -c+470630560 testExplicitCollectsFromSingleBucket.appmap.json | head -100
tic":false,"thread_id":74},,{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},{"$ref":"$"},]}

The appmap for org.elasticsearch.search.aggregations.metrics.HyperLogLogPlusPlusTests.testMerge contains the sequence ":[,{":

Alans-MacBook-Pro org.elasticsearch.search.aggregations$ tail -c+$(expr 427988011 - 50) testMerge.appmap.json | head -c+200 | less
"lineno":72,"method_id":"readIntLE","parameters":[,{"defined_class":"org.elasticsearch.common.util.AbstractBigArray","event":"return","id":1159599,"lineno":81,"method_id":"size","path":"src/main/java/

The appmap for org.elasticsearch.search.aggregations.metrics.MedianAbsoluteDeviationAggregatorTests contains the sequence main/java,{"defined_class":":

Alans-MacBook-Pro org.elasticsearch.search.aggregations$ tail -c+$(expr 4692538 - 100) testSomeMatchesSortedNumericDocValues.appmap.json | head -c+150
"object_id":719878273,"value":"[Ljava.lang.String;@2ae87881"}],"path":"src/main/java,{"defined_class":"org.elasticsearch.common.settings.AbstractScope

It's possible that there were errors generated during the execution of these tests.

まず、BytesKeyedBucketOrdsTests、HyperLogLogPlusPlusTests.testMerge、MedianAbsoluteDeviationAggregatorTestsを含む、記載されたElasticsearchテストでappmap生成を再現します。報告されたバイト列の周辺にある生成済みイベントのセクションを調べ、有効なJSON構造と比較します。これらのテストで不正なappmapファイルが生成されなくなれば完了です。