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NoSuchMethodError

5 articles · Page 1 of 1
Selected Java Interview Questions
Selected Java Interview Questions
Jan 20, 2026 · Backend Development

How to Diagnose and Fix Maven Dependency Conflicts (NoSuchMethodError & ClassNotFoundException)

This guide explains why Maven dependency conflicts cause errors like NoSuchMethodError and ClassNotFoundException, shows step‑by‑step commands to inspect the dependency tree, and provides three practical ways—exclusions, forced versions, and dependencyManagement—to resolve and prevent such conflicts in Java projects.

BOMClassNotFoundExceptionDependency Conflict
0 likes · 7 min read
How to Diagnose and Fix Maven Dependency Conflicts (NoSuchMethodError & ClassNotFoundException)
Cognitive Technology Team
Cognitive Technology Team
Sep 3, 2022 · Backend Development

Diagnosing NoSuchMethodError and NoSuchFieldError in Spring Boot Jar Packages

This article explains why a Spring Boot application that runs fine in an IDE may throw NoSuchMethodError or NoSuchFieldError when packaged as an executable jar, and provides systematic steps—including JVM class‑loading flags, Maven enforcer rules, and class‑path inspection—to locate and resolve the root cause.

Class LoadingNoSuchMethodErrorSpring Boot
0 likes · 6 min read
Diagnosing NoSuchMethodError and NoSuchFieldError in Spring Boot Jar Packages
Programmer DD
Programmer DD
Dec 4, 2019 · Backend Development

Why Does My Spring Boot 1.5.7 App Hang? Fixing NoSuchMethodError Caused by Jar Conflicts

A Spring Boot 1.5.7 application suddenly stops starting because the main thread is blocked, the stack trace shows a NoSuchMethodError for ObjectUtils.unwrapOptional, which is traced back to a mismatched spring‑context 5.x jar overriding the original 4.x version, and the article explains how to identify and resolve the dependency conflict.

DebuggingMaven DependencyNoSuchMethodError
0 likes · 8 min read
Why Does My Spring Boot 1.5.7 App Hang? Fixing NoSuchMethodError Caused by Jar Conflicts