IntelliJ IDEA Editor Settings

This page describes the noticeable changes made to the default code formatting settings in Intellij IDEA. This is also a chance to review some of these changes to validate or tweak them if necessary:

Issues

These are the reported issues that we still discuss (or simply things that the formatter does not support). The first is what we use.

• Space in annotation parameter assignment: @Foo(name="foo") vs. @Foo(name = "foo")
• Space in annotation array parameter: @Target({ ElementType.METHOD, ElementType.TYPE }) vs. @Target({ElementType.METHOD, ElementType.TYPE})

General

• Default indent option to use tab character instead of space

Java

Tabs and indent

• Use tab character

Spaces

• Add a space before the left brace of an array initializer

Wrapping and braces

• Keep when reformating: multiple expressions in one line, simple blocks in one line, simple classes in one line
• else, catch and finally on new line
• Method declaration parameters: do not align when multiline

Blank lines

• Keep one space before } (solely use to keep the space between the end of the last method and the end of the class)
• Minimum blank line after class header 0 (instead of 1)

Javadoc

• Disabled

Imports

• Use 100 for "Class count to use import with *" so that imported classes are always listed individually.
• Use 0 for "Names count to use static imports with *" since static imports are only allowed in test sources where they can and should be aggregated, e.g. import static org.junit.Assert.*;.
• Use the following import sequence order:
  • java.*
  • <blank line>
  • javax.*
  • <blank line>
  • all other imports
  • <blank line>
  • org.springframework.*
  • import static all other methods