Скачать или смотреть Resolving the java.lang.RuntimeException for Missing BouncyCastle Class File

Discover how to tackle the `java.lang.RuntimeException: com.sun.tools.javac.code.Symbol$CompletionFailure` error related to BouncyCastle in your Java EE application by rebuilding your project as a Maven project with the correct dependencies.
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Resolving the java.lang.RuntimeException for Missing BouncyCastle Class File

When working with Java EE applications, you might occasionally encounter a frustrating error: the java.lang.RuntimeException: com.sun.tools.javac.code.Symbol$CompletionFailure: class file for org.bouncycastle.asn1.DERInteger not found. If you've found yourself facing this issue, you're not alone. This error indicates that the Java compiler cannot find a specific class file, which is often related to external libraries such as BouncyCastle. In this post, we'll explore the solution to this problem and provide some helpful tips for managing your dependencies effectively.

Understanding the Problem

The problem arose while compiling a Java EE 7 application on a Windows 2019 Server. Despite successfully running the application in a standalone environment (such as a Macbook Pro), the same application led to compilation failures on the server. Here’s a brief overview of the error message displayed:

[[See Video to Reveal this Text or Code Snippet]]

This message signifies that the required class file from the BouncyCastle library is missing. This can happen when the library is not included correctly in your project's classpath or dependency management system.

Solution Steps

1. Verify Your BouncyCastle Dependencies

To address this issue, you first need to ensure that all required BouncyCastle classes are available in your classpath. Here's a list of the common BouncyCastle JAR files you might need for a Java EE application:

bcpkix-jdk15to18-168.jar

bcprov-ext-jdk15to18-1.68.jar

bcprov-jdk15on-1.68.jar

bc-fips-1.0.2.jar

bcmail-fips-1.0.3.jar

bcpkix-fips-1.0.5.jar

Make sure that you are using compatible versions of these libraries. Mixing and matching can sometimes lead to errors, especially if one version relies on classes that are missing in another version.

2. Convert Your Project to Maven

One effective way to handle dependencies in Java applications is to use Maven, a powerful build automation tool that simplifies dependency management. Here's how to do it:

Create a Maven Project: Convert your existing project into a Maven project. You can do this in NetBeans or use the command line.

Update pom.xml: In your Maven project's pom.xml file, add the BouncyCastle dependencies. For example:

[[See Video to Reveal this Text or Code Snippet]]

Rebuild Your Project: Run mvn clean install to rebuild the project with the updated dependencies. This will ensure that all necessary libraries are included correctly.

3. Import Dependencies Based on Timestamps

During the rebuild process, if you encounter further compile errors, focus on importing dependencies that match the timestamps of when the application was originally developed. This can help prevent compatibility issues that arise from using newer library versions that may have altered or deprecated certain classes.

Conclusion

By converting your project to a Maven project and ensuring the correct dependencies are included, you can easily resolve the java.lang.RuntimeException: com.sun.tools.javac.code.Symbol$CompletionFailure error. This approach not only simplifies managing your project's dependencies but also enhances your overall development experience. If you run into similar issues in the future, always start by checking your dependencies and consider using a build tool like Maven to streamline the process.

If you have any questions or if there's anything else you'd like to know about handling Java EE applications and dependencies, feel free to leave a comment below.