Github user zentol commented on the pull request:
https://github.com/apache/flink/pull/1464#issuecomment-165501540
"Object reuse is configured in JavaProgramTestBase but must be set in the
ExecutionEnvironmentFactory by TestEnvironment. I don't see that any of the
many tests subclassing JavaProgramTestBase were testing with object reuse
enabled."
Does this (L.112 JavaProgramTestBase)
```
// prepare the test environment
TestEnvironment env = new TestEnvironment(this.executor, this.parallelism);
env.getConfig().enableObjectReuse();
env.setAsContext();
```
not enable (and as such force) object reuse for every test that extends
JavaProgramTestBase?
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