I'm trying to create a Spring application using Cassandra DB. But getting following error when I try to run the application.
Caused by: java.lang.NoClassDefFoundError: com/datastax/oss/protocol/internal/SegmentCodec
... 103 common frames omitted
Caused by: java.lang.ClassNotFoundException: com.datastax.oss.protocol.internal.SegmentCodec
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_152-release]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_152-release]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_152-release]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_152-release]
... 103 common frames omitted
Spring Boot version: 2.3.4.RELEASE
Cassandra(spring-boot-starter-data-cassandra) version: 3.0.4
application.yml file:
spring:
data:
cassandra:
keyspaceName: my_keyspace
contactPoints: localhost
port: 9042
schema-action: CREATE_IF_NOT_EXISTS
local-datacenter: datacenter1
CassandraConfig.java
@Configuration
@EnableCassandraRepositories(basePackages = "com.myproject.repository")
public class CassandraConfig extends AbstractCassandraConfiguration {
@Value("${spring.data.cassandra.keyspaceName}")
private String keyspace;
@Value("${spring.data.cassandra.contactPoints}")
private String contactPoints;
@Value("${spring.data.cassandra.port}")
private int port;
@Value("${spring.data.cassandra.local-datacenter}")
private String dataCenter;
@Override
public SchemaAction getSchemaAction() {
return SchemaAction.CREATE_IF_NOT_EXISTS;
}
@Override
protected SessionBuilderConfigurer getSessionBuilderConfigurer() {
return new SessionBuilderConfigurer() {
@Override
public CqlSessionBuilder configure(CqlSessionBuilder cqlSessionBuilder) {
return cqlSessionBuilder
.addContactPoint(new InetSocketAddress(
contactPoints,
getPort()))
;
}
};
}
@Override
protected List<CreateKeyspaceSpecification> getKeyspaceCreations() {
return Arrays.asList(CreateKeyspaceSpecification
.createKeyspace(getKeyspaceName())
.ifNotExists(true)
.withSimpleReplication()
.with(KeyspaceOption.DURABLE_WRITES));
}
@Override
protected KeyspacePopulator keyspacePopulator() {
ResourceKeyspacePopulator keyspacePopulate = new ResourceKeyspacePopulator();
keyspacePopulate.setSeparator(";");
keyspacePopulate.setScripts(new ClassPathResource("table-schema.cql"));
return keyspacePopulate;
}
@Override
protected String getKeyspaceName() {
return keyspace;
}
@Override
protected int getPort(){
return port;
}
@Override
public String[] getEntityBasePackages() {
return new String[]{"com.myproject.entity"};
}
@Override
protected String getLocalDataCenter() {
return dataCenter;
}
}
table-schema.cql
CREATE TABLE IF NOT EXISTS orders (order_id text, user_name text, created_at timestamp, item_id text, PRIMARY KEY ((order_id), item_id));
Following dependencies are present in pom.xml(driver.version is 4.9.0)
<dependency>
<groupId>com.datastax.oss</groupId>
<artifactId>java-driver-core</artifactId>
<version>${driver.version}</version>
</dependency>
<dependency>
<groupId>com.datastax.oss</groupId>
<artifactId>java-driver-query-builder</artifactId>
<version>${driver.version}</version>
</dependency>
<dependency>
<groupId>com.datastax.oss</groupId>
<artifactId>java-driver-mapper-runtime</artifactId>
<version>${driver.version}</version>
</dependency>
java.lang.NoClassDefFoundError: com/datastax/oss/protocol/internal/SegmentCodec
and this answer solved my problem! – Naive