What is an acceptable folder structure for Java projects in IntelliJ IDEA?
Multiple sources (like this) suggest the following structure:
.
│ .idea
└── src
├── main
│ ├── java
│ │ └── com.simpleproject
│ │ └── SimpleClass.java
│ └── resources
└── test
├── java
│ └── com.simpleproject
│ └── SimpleClassTest.java
└── resources
I know this has worked before, but right now it is complaining java.lang.SecurityException: Prohibited package name: java
Apparently, java
is not allowed as a package name. I don't understand why it's sometimes acceptable and sometimes not acceptable. Can someone provide a complete example of an acceptable project folder structure in a Java project in IntelliJ IDEA?
That is the basic folder structure of a maven project. IntelliJ usually recognizes this and sets up sensical defaults for you.
If it didn't (or if it did but you modified them afterwards), you need to set up your java folder as the sources
folder (i.e. the folder that contains the source code).
For this, you need to:
File > Project Structure
src/main/java
folder and select itSources
Repeat for test folder (mark as 'Tests'), resources (mark as 'Resources'), test-resources (mark as 'Test Resources'), etc.
Your configuration in the IntelliJ's File > Project Structure
page will be overridden by the project's pom.xml
after every clean install
. To prevent this, you need to configure the source directory in pom.xml
as below:
<sourceDirectory>src/main/java</sourceDirectory>
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