JUnit test-com.google.guava 19.0和com.datastax.core.driver 3.0.1中的Maven依赖问题

Question

我的JUnit测试用例在将datastax Cassandra驱动程序升级到3.0.1后中断。添加了一个检查，以确保Google guava版本16.0.1的使用与Datastax升级页面中描述的一样：第3点。

[INFO] +- com.google.guava:guava:jar:19.0:compile
[INFO] +- com.datastax.cassandra:cassandra-driver-core:jar:3.0.1:compile
...
[INFO] |  +- (com.google.guava:guava:jar:16.0.1:compile - omitted for conflict with 19.0)

java.lang.ExceptionInInitializerError
at com.datastax.driver.core.Cluster$Builder.build(Cluster.java:1274)
at org.cassandraunit.spring.AbstractCassandraUnitTestExecutionListener.startServer(AbstractCassandraUnitTestExecutionListener.java:61)
at org.cassandraunit.spring.CassandraUnitDependencyInjectionTestExecutionListener.prepareTestInstance(CassandraUnitDependencyInjectionTestExecutionListener.java:21)
at ...
Caused by: java.lang.IllegalStateException: Detected Guava issue #1635 which indicates that a version of Guava less than 16.01 is in use.  This introduces codec resolution issues and potentially other incompatibility issues in the driver.  Please upgrade to Guava 16.01 or later.
at com.datastax.driver.core.SanityChecks.checkGuava(SanityChecks.java:62)
at com.datastax.driver.core.SanityChecks.check(SanityChecks.java:36)
at com.datastax.driver.core.Cluster.<clinit>(Cluster.java:68)
... 25 more

pom.xml相关部分包括：

        <!-- Spring data cassandra -->
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-cassandra</artifactId>
        <version>${org.springframework.data.cassandra.version}</version>
    </dependency>

    <!-- Cassandra in memory unit testing -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.11</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.cassandraunit</groupId>
        <artifactId>cassandra-unit-spring</artifactId>
        <version>2.1.3.2-SNAPSHOT</version>
        <scope>test</scope>
        <exclusions>
            <exclusion>
                <groupId>org.cassandraunit</groupId>
                <artifactId>cassandra-unit</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.cassandraunit</groupId>
        <artifactId>cassandra-unit-shaded</artifactId>
        <version>2.1.3.2-SNAPSHOT</version>
        <scope>test</scope> 
    </dependency>
    <dependency>
        <groupId>org.hectorclient</groupId>
        <artifactId>hector-core</artifactId>
        <version>2.0-0</version>
        <optional>true</optional>
        <scope>test</scope>
    </dependency>  

    <!-- Datastax Cassandra Java driver -->
    <dependency>
        <groupId>com.google.guava</groupId>
        <artifactId>guava</artifactId>
        <version>19.0</version>
    </dependency> 
    <dependency>
        <groupId>com.datastax.cassandra</groupId>
        <artifactId>cassandra-driver-core</artifactId>
        <version>3.0.1</version>
    </dependency>

这是Maven的依赖树。只是因为它太大了，所以才会在相关章节上复制。

...
[INFO] +- com.google.api-client:google-api-client:jar:1.20.0:compile
[INFO] |  +- com.google.oauth-client:google-oauth-client:jar:1.20.0:compile
[INFO] |  |  +- com.google.http-client:google-http-client:jar:1.20.0:compile
[INFO] |  |  |  +- (com.google.code.findbugs:jsr305:jar:1.3.9:compile - omitted for duplicate)
[INFO] |  |  |  \- (org.apache.httpcomponents:httpclient:jar:4.0.1:compile - omitted for conflict with 4.3)
[INFO] |  |  \- com.google.code.findbugs:jsr305:jar:1.3.9:compile
[INFO] |  +- com.google.http-client:google-http-client-jackson2:jar:1.20.0:compile
[INFO] |  |  +- (com.google.http-client:google-http-client:jar:1.20.0:compile - omitted for duplicate)
[INFO] |  |  \- (com.fasterxml.jackson.core:jackson-core:jar:2.1.3:compile - omitted for conflict with 2.3.0)
[INFO] |  \- com.google.guava:guava-jdk5:jar:13.0:compile
...

[INFO] +- org.springframework.data:spring-data-cassandra:jar:1.3.2.RELEASE:compile
[INFO] |  +- org.springframework.data:spring-cql:jar:1.3.2.RELEASE:compile
[INFO] |  |  +- (org.springframework:spring-context:jar:4.1.9.RELEASE:compile - omitted for conflict with 4.1.6.RELEASE)
[INFO] |  |  +- (org.springframework:spring-beans:jar:4.1.9.RELEASE:compile - omitted for conflict with 4.1.6.RELEASE)
[INFO] |  |  +- (org.springframework:spring-core:jar:4.1.9.RELEASE:compile - omitted for conflict with 4.1.6.RELEASE)
[INFO] |  |  +- (org.springframework:spring-expression:jar:4.1.9.RELEASE:compile - omitted for conflict with 4.1.6.RELEASE)
[INFO] |  |  +- org.springframework:spring-tx:jar:4.1.9.RELEASE:compile
[INFO] |  |  |  +- (org.springframework:spring-beans:jar:4.1.9.RELEASE:compile - omitted for conflict with 4.1.6.RELEASE)
[INFO] |  |  |  \- (org.springframework:spring-core:jar:4.1.9.RELEASE:compile - omitted for conflict with 4.1.6.RELEASE)
[INFO] |  |  +- (org.springframework.data:spring-data-commons:jar:1.11.2.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (com.datastax.cassandra:cassandra-driver-dse:jar:2.1.5:compile - omitted for duplicate)
[INFO] |  |  +- (com.google.guava:guava:jar:14.0:compile - omitted for conflict with 19.0)
[INFO] |  |  +- (org.slf4j:slf4j-api:jar:1.7.13:compile - omitted for conflict with 1.7.5)
[INFO] |  |  \- (org.slf4j:jcl-over-slf4j:jar:1.7.13:runtime - omitted for conflict with 1.7.5)
[INFO] |  +- (org.springframework:spring-expression:jar:4.1.9.RELEASE:compile - omitted for conflict with 4.1.6.RELEASE)
[INFO] |  +- org.springframework.data:spring-data-commons:jar:1.11.2.RELEASE:compile
[INFO] |  |  +- (org.springframework:spring-core:jar:4.1.9.RELEASE:compile - omitted for conflict with 4.1.6.RELEASE)
[INFO] |  |  +- (org.springframework:spring-beans:jar:4.1.9.RELEASE:compile - omitted for conflict with 4.1.6.RELEASE)
[INFO] |  |  +- (org.slf4j:slf4j-api:jar:1.7.13:compile - omitted for conflict with 1.7.5)
[INFO] |  |  \- (org.slf4j:jcl-over-slf4j:jar:1.7.13:runtime - omitted for conflict with 1.7.5)
[INFO] |  +- com.datastax.cassandra:cassandra-driver-dse:jar:2.1.5:compile
[INFO] |  |  \- (com.datastax.cassandra:cassandra-driver-core:jar:2.1.5:compile - omitted for conflict with 3.0.1)
[INFO] |  +- (org.slf4j:slf4j-api:jar:1.7.13:compile - omitted for conflict with 1.7.5)
[INFO] |  \- (org.slf4j:jcl-over-slf4j:jar:1.7.13:runtime - omitted for conflict with 1.7.5)
...

[INFO] +- org.hectorclient:hector-core:jar:2.0-0:test
[INFO] |  +- (commons-lang:commons-lang:jar:2.4:test - omitted for duplicate)
[INFO] |  +- commons-pool:commons-pool:jar:1.5.3:test
[INFO] |  +- org.apache.cassandra:cassandra-thrift:jar:2.0.4:test
[INFO] |  |  +- (org.apache.commons:commons-lang3:jar:3.1:test - omitted for duplicate)
[INFO] |  |  +- (org.slf4j:slf4j-api:jar:1.7.2:test - omitted for conflict with 1.7.12)
[INFO] |  |  \- (org.apache.thrift:libthrift:jar:0.9.1:test - omitted for conflict with 0.9.2)
[INFO] |  +- (com.google.guava:guava:jar:14.0:compile - scope updated from test; omitted for duplicate)
[INFO] |  +- (org.slf4j:slf4j-api:jar:1.6.1:test - omitted for conflict with 1.7.12)
[INFO] |  +- com.github.stephenc.eaio-uuid:uuid:jar:3.2.0:test
[INFO] |  +- com.ecyrd.speed4j:speed4j:jar:0.9:test
[INFO] |  |  \- (org.slf4j:slf4j-api:jar:1.6.1:test - omitted for conflict with 1.7.12)
[INFO] |  \- com.yammer.metrics:metrics-core:jar:2.2.0:test
[INFO] |     \- (org.slf4j:slf4j-api:jar:1.7.2:test - omitted for conflict with 1.7.12)
[INFO] +- com.google.guava:guava:jar:19.0:compile
[INFO] +- com.datastax.cassandra:cassandra-driver-core:jar:3.0.1:compile
[INFO] |  +- io.netty:netty-handler:jar:4.0.33.Final:compile
[INFO] |  |  +- io.netty:netty-buffer:jar:4.0.33.Final:compile
[INFO] |  |  |  \- io.netty:netty-common:jar:4.0.33.Final:compile
[INFO] |  |  +- io.netty:netty-transport:jar:4.0.33.Final:compile
[INFO] |  |  |  \- (io.netty:netty-buffer:jar:4.0.33.Final:compile - omitted for duplicate)
[INFO] |  |  \- io.netty:netty-codec:jar:4.0.33.Final:compile
[INFO] |  |     \- (io.netty:netty-transport:jar:4.0.33.Final:compile - omitted for duplicate)
[INFO] |  +- (com.google.guava:guava:jar:16.0.1:compile - omitted for conflict with 19.0)
[INFO] |  \- io.dropwizard.metrics:metrics-core:jar:3.1.2:compile
[INFO] |     \- (org.slf4j:slf4j-api:jar:1.7.7:compile - omitted for conflict with 1.7.12)

Answer 1

正如您自己指出的，罪魁祸首确实是google-api-client，它依赖于一个名为guava-jdk5的非标准guava jar，它将guava13.0带到您的类路径中。

尝试排除它：

<dependency>
    <groupId>com.google.api-client</groupId>
    <artifactId>google-api-client</artifactId>
    <version>1.20.0</version>
    <exclusions>
        <exclusion>
            <groupId>com.google.guava</groupId>
            <artifactId>guava-jdk5</artifactId>
        </exclusion>
    </exclusions>
</dependency>