IntelliJ IDEA tells me “Error:java: Compilation failed: internal java compiler error idea”

Question

When I compile a Java project using IntelliJ IDEA, it gives me the following output (and error):

Information:Eclipse compiler 4.6.2 was used to compile java          


        

Answer 1

For me the module's target bytecode version was set to 5. I changed it to 8 and the error is gone:

Answer 2

In my case, using Java 11, I had:

 public List<String> foo() {
   ...
   return response.readEntity(new GenericType<List<String>>() {});

and Intellij suggested I should use <> instead of GenericType<List<String>>, as such:

 public List<String> foo() {
   ...
   return response.readEntity(new GenericType<>() {});

I did that in four functions and the project stopped compiling with an internal compiler error, reverted and it compiled again. Looks like a bug with type inference.

Answer 3

Changing the Language Level in the Project Settings (Ctrl + Alt + Shift + S) to Java 8 solved the problem for me

Answer 4

I changed my compiler to Eclipse and run my project. Afterwards changed back to Javac and problem solved. I don't know exact problem but it can help who is looking for solution.

Answer 5

What worked for me is to update the Open JDK version

Answer 6

I solved this issue by increasing the default value(700) of Build process heap size on IntelliJ's compiler settings.