Jacky Liu

Question The code analysis feature in IntelliJ does not recognize methods that are invoked by JVM agents. This results in false positives in the IDE's issue detection. This happens even though the ...

Symptoms User attempts to run a query in the JPA console and encounters the error: CreateProcess error=206, The filename or extension is too long The error persists across multiple versions of In...

Question Does the JetBrains @NotNull annotations work in Maven or not? Answer We have a feature request about this: Official @NotNull instrumenter maven and gradle plugin Official @NotNull instrume...

Summary String @NotNull [] means the "non-null array of (any) strings". @NotNull String [] means "an array (or null) of non-null strings". See JLS 9.7.4 @C int @A [] @B [] f; @A applies to the arr...

Problem When attempting to debug an application, users may encounter an error message stating that the port is already in use. This prevents the debugging process from continuing. Cause [Optional] ...

Question: How to manually run a disabled Junit test in IntelliJ IDEA? eg: import org.junit.jupiter.api.Disabled; import org.junit.jupiter.api.Test; class DisabledMethodTest { ...

Problem User's custom IntelliJ IDEA plugin did not scan JSP files effectively when running in standalone mode. Cause The plugin was configured to use the Community Edition ("IC") instead of the Ult...

Problem When attempting to debug a remote Tomcat server using IntelliJ IDEA in version 2025.1, the following error occurs: "Unable to open debugger port (*:5555): java.net.ConnectException "Connect...

Question How can I automatically attach a remote debugger to a running Java application in a Docker instance? Answer To automate the process of attaching your debugger to the JVM running within a D...

Question How to create an implicit Java class in IDEA? Answer First, you need a project that uses Java 25 or later, where compact source files are a standard feature. Then, you can create just a fi...