Coding⏱️ 2 min read📅 2026-06-03

How to Fix: How do I fix a NoSuchMethodError?

Java NoSuchMethodError error solution and explanation.

Quick Answer: Check if the method is declared correctly in the class, ensure it's not private or static. Verify that the class name matches the package name.

A NoSuchMethodError in Java occurs when the JVM (Java Virtual Machine) attempts to call a method that does not exist in the current object's class or its superclass. This error is thrown by the JVM when it encounters a call to an undefined method, which can happen due to various reasons such as typos, incorrect class loading, or missing dependencies.

🔍 Why This Happens

  • Typo in the method name or incorrect method signature.
  • Incompatible class loading due to missing dependencies or incorrect classpath settings.

🔧 Proven Troubleshooting Steps

Method 1: Verify Method Existence

  1. Step 1: Check the Java documentation or the class source code to ensure that the method exists and is correctly implemented.

Method 2: Inspect Classpath

  1. Step 1: Verify that all dependencies are correctly included in the project's classpath.

🎯 Final Words

To avoid NoSuchMethodError, it is essential to thoroughly test and debug your Java code before deployment. Regularly reviewing the documentation and ensuring that all dependencies are correctly configured can also help in preventing this error.

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