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errorprone.bugpattern.DeeplyNested.md Maven / Gradle / Ivy

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Having an extremely long Java statement with many chained method calls can cause
compilation to fail with a `StackOverflowError` when the compiler tries to
recursively process it.

This is a common problem in generated code.

As an alternative to extremely long chained method calls, e.g. for builders,
consider something like the following for collections with hundreds or thousands
of entries:

```java
private static final ImmutableList FEATURES = createFeatures();

private static final ImmutableList createFeatures() {
  ImmutableList.Builder builder = ImmutableList.builder();
  builder.add("foo");
  builder.add("bar");
  ...
  return builder.build();
}
```

over code like this:

```java
private static final ImmutableList FEATURES =
  ImmutableList.builder()
    .add("foo")
    .add("bar")
    ...
    .build();
```




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