how to fix java.lang.NoClassDefFoundError: org/springframework/boot/Bootstrapper?

Issue

tried upgrading spring-boot from 2.5 to 2.6 facing the below issue, not sure what went wrong

bellow are some of the dependencies which we mention version, others are all we don’t mention the versions and takes from parent

<dependency>
            <groupId>org.yaml</groupId>
            <artifactId>snakeyaml</artifactId>
            <version>1.31</version>
        </dependency>

<dependencies>
            <dependency>
                <groupId>io.awspring.cloud</groupId>
                <artifactId>spring-cloud-aws-dependencies</artifactId>
                <version>2.3.0</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>com.amazonaws</groupId>
                <artifactId>aws-java-sdk-bom</artifactId>
                <version>1.12.89</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>software.amazon.awssdk</groupId>
                <artifactId>bom</artifactId>
                <version>2.16.67</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>

20:27:56.606 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
java.lang.NoClassDefFoundError: org/springframework/boot/Bootstrapper
    at java.base/java.lang.ClassLoader.defineClass1(Native Method)
    at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1013)
    at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
    at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862)
    at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760)
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681)
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)

resolution for the error

Solution

Seem like this is a known issue for this version

Answered By – hillel_guy

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