Java Errors: Java 11 new feature errors, how to deal with and avoid them

The release of Java11 brings many new features, which make Java more performant and secure, but it also brings some bugs. These errors can impact code and applications during Java development. This article will discuss Java11 new feature errors and how to deal with them.

1. Module System Error

Java11 introduces the module system to help developers better manage applications and dependencies. However, some mistakes can occur when implementing modularity.

Handling method: To solve these errors, you need to first understand the basic principles and rules of the module system. Before writing code, make sure you're familiar with how modularity works and that your code is organized and packaged in the right way. If something goes wrong, you can check that your module dependencies and naming conventions are correct.

2. Removing JavaFX from JDK

Since Java 11, JavaFX has been removed from the JDK, which may cause errors in upgraded applications.

How to handle: If your application depends on JavaFX, you need to use an external library to obtain JavaFX. This may require some changes to ensure the application runs correctly.

3. String API changes

Some String APIs have been changed in Java11, which may cause some code to fail to compile.

How to handle: Check your code to make sure you are using the correct String API. If your code doesn't compile, check which APIs have changed in Java11 and modify accordingly.

4. Deprecated APIs in Java11

In Java11, some APIs have been deprecated, which may cause errors in applications.

How to deal with it: Check which APIs have been deprecated in Java11 and find suggested alternatives. Update your code as early as possible so bugs don't appear in future versions.

5. G1 Garbage Collector Bug

The G1 garbage collector introduced in Java11 may cause memory leaks or performance degradation issues.

How to handle: Optimize your application to take better advantage of the G1 garbage collector. You can try to improve garbage collection performance by adjusting parameters, or consider using a different garbage collector if necessary.

6. Application startup error

In Java11, some applications may fail to start or crash.

What to do: Check your code and make sure you are using the correct Java version. If you are sure you are using the correct version, check the relevant settings including JVM parameters and operating system configuration.

Conclusion

Java11 brings many new features and improvements, but it also brings some bugs. By understanding these errors and how to deal with them, you can write better code and solve problems. When using Java11, be sure to pay attention to the details and rules, and check for and fix errors as early as possible to ensure that your application runs properly.

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