1. IDE Platform: GoLand is specifically designed for Go programming language development, whereas Java can be used with a variety of Integrated Development Environments (IDEs) such as Eclipse, IntelliJ IDEA, NetBeans, etc.
2. Static Typing: GoLang uses static typing, which requires variables to have type declarations at compile time, while Java supports both static and dynamic typing through the use of Java Reflection.
3. Concurrency: GoLang has built-in support for concurrent programming through Goroutines and Channels, making it easier to write efficient parallel code compared to Java, where concurrency needs to be managed using threads and synchronization.
4. Error Handling: GoLang's error handling approach uses simple, explicit return values to indicate errors, promoting better code readability, while Java typically uses exceptions for error handling, which can sometimes lead to more complex code structures.
5. Package Management: GoLang utilizes the "go get" command for managing dependencies through the Go module system, streamlining the process of downloading and incorporating external packages, whereas Java relies on tools like Maven or Gradle for package management, which can be more complex and require additional configuration.
6. Garbage Collection: GoLang has a more efficient garbage collector compared to Java's garbage collection process, resulting in potentially better performance and reduced memory overhead in GoLang applications.

In Summary, the key differences between GoLand and Java include IDE platform specialization, static typing in GoLang, concurrency handling, error handling approaches, package management techniques, and garbage collection efficiency.