我有一个Spring Boot应用程序，其中包含许多其他库。它编译得很好（mvn clean package），但是当我尝试运行构建的服务器时，我收到以下错误：
java.lang.ExceptionInInitializerError: null
at org.springframework.beans.factory.groovy.GroovyBeanDefinitionReader.<init>(GroovyBeanDefinitionReader.java:150) ~[spring-beans-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
at org.springframework.boot.BeanDefinitionLoader.<init>(BeanDefinitionLoader.java:84) ~[spring-boot-1.5.10.RELEASE.jar!/:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.createBeanDefinitionLoader(SpringApplication.java:684) [spring-boot-1.5.10.RELEASE.jar!/:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.load(SpringApplication.java:624) [spring-boot-1.5.10.RELEASE.jar!/:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:355) [spring-boot-1.5.10.RELEASE.jar!/:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:301) [spring-boot-1.5.10.RELEASE.jar!/:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.10.RELEASE.jar!/:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.10.RELEASE.jar!/:1.5.10.RELEASE]
at myproject.graphutils.server.GraphUtilsServer.main(GraphUtilsServer.java:9) [classes!/:1.0-SNAPSHOT]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [graph-utils-server-1.0-SNAPSHOT.jar:1.0-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [graph-utils-server-1.0-SNAPSHOT.jar:1.0-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [graph-utils-server-1.0-SNAPSHOT.jar:1.0-SNAPSHOT]
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) [graph-utils-server-1.0-SNAPSHOT.jar:1.0-SNAPSHOT]
Caused by: groovy.lang.GroovyRuntimeException: Conflicting module versions. Module [groovy-xml is loaded in version 2.4.11 and you are trying to load version 2.4.13
at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl$DefaultModuleListener.onModule(MetaClassRegistryImpl.java:513) ~[data-to-graph-mapper-1.0-SNAPSHOT.jar!/:na]
at org.codehaus.groovy.runtime.m12n.ExtensionModuleScanner.scanExtensionModuleFromProperties(ExtensionModuleScanner.java:80) ~[data-to-graph-mapper-1.0-SNAPSHOT.jar!/:na]
at org.codehaus.groovy.runtime.m12n.ExtensionModuleScanner.scanExtensionModuleFromMetaInf(ExtensionModuleScanner.java:74) ~[data-to-graph-mapper-1.0-SNAPSHOT.jar!/:na]
at org.codehaus.groovy.runtime.m12n.ExtensionModuleScanner.scanClasspathModules(ExtensionModuleScanner.java:56) ~[data-to-graph-mapper-1.0-SNAPSHOT.jar!/:na]
at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.<init>(MetaClassRegistryImpl.java:113) ~[data-to-graph-mapper-1.0-SNAPSHOT.jar!/:na]
at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.<init>(MetaClassRegistryImpl.java:74) ~[data-to-graph-mapper-1.0-SNAPSHOT.jar!/:na]
at groovy.lang.GroovySystem.<clinit>(GroovySystem.java:36) ~[data-to-graph-mapper-1.0-SNAPSHOT.jar!/:na]
... 17 common frames omitted
我已尝试强制使用所有Groovy相关模块的正确依赖版本，但这并没有帮助。这是我的POM文件（带有强制版本）：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.RELEASE</version>
</parent>
<groupId>myproject</groupId>
<artifactId>graph-utils-server</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>myproject</groupId>
<artifactId>graph-utils</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>myproject</groupId>
<artifactId>data-to-graph-mapper</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!-- Spring Boot -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
<!-- AWS -->
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-s3</artifactId>
<version>1.11.276</version>
</dependency>
<!-- Force versions -->
<dependency>
<groupId>org.apache.tinkerpop</groupId>
<artifactId>tinkergraph-gremlin</artifactId>
<version>3.3.1</version>
</dependency>
<dependency>
<groupId>org.apache.tinkerpop</groupId>
<artifactId>gremlin-groovy</artifactId>
<version>3.3.1</version>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy</artifactId>
<version>2.4.13</version>
<classifier>indy</classifier>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-groovysh</artifactId>
<version>2.4.13</version>
<classifier>indy</classifier>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-json</artifactId>
<version>2.4.13</version>
<classifier>indy</classifier>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-jsr223</artifactId>
<version>2.4.13</version>
<classifier>indy</classifier>
</dependency>
<!-- JanusGraph -->
<dependency>
<groupId>org.janusgraph</groupId>
<artifactId>janusgraph-core</artifactId>
<version>0.2.0</version>
</dependency>
<dependency>
<groupId>org.janusgraph</groupId>
<artifactId>janusgraph-hbase</artifactId>
<version>0.2.0</version>
</dependency>
<dependency>
<groupId>org.janusgraph</groupId>
<artifactId>janusgraph-lucene</artifactId>
<version>0.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase-client</artifactId>
<version>1.4.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
这里是Maven依赖树：
--- maven-dependency-plugin:2.10:tree (default-cli) @ graph-utils-server ---
myproject:graph-utils-server:jar:1.0-SNAPSHOT
+- myproject:graph-utils:jar:1.0-SNAPSHOT:compile
+- myproject:data-to-graph-mapper:jar:1.0-SNAPSHOT:compile
+- org.springframework.boot:spring-boot-starter-web:jar:1.5.10.RELEASE:compile
| +- org.springframework.boot:spring-boot-starter:jar:1.5.10.RELEASE:compile
| | +- org.springframework.boot:spring-boot-starter-logging:jar:1.5.10.RELEASE:compile
| | | +- org.slf4j:jul-to-slf4j:jar:1.7.25:compile
| | | \- org.slf4j:log4j-over-slf4j:jar:1.7.25:compile
| | +- org.springframework:spring-core:jar:4.3.14.RELEASE:compile
| | \- org.yaml:snakeyaml:jar:1.17:compile
| +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.5.10.RELEASE:compile
| | +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.5.27:compile
| | | \- org.apache.tomcat:tomcat-annotations-api:jar:8.5.27:compile
| | +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.5.27:compile
| | \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.5.27:compile
| +- org.hibernate:hibernate-validator:jar:5.3.6.Final:compile
| | +- javax.validation:validation-api:jar:1.1.0.Final:compile
| | +- org.jboss.logging:jboss-logging:jar:3.3.1.Final:compile
| | \- com.fasterxml:classmate:jar:1.3.4:compile
| +- com.fasterxml.jackson.core:jackson-databind:jar:2.8.10:compile
| | +- com.fasterxml.jackson.core:jackson-annotations:jar:2.8.0:compile
| | \- com.fasterxml.jackson.core:jackson-core:jar:2.8.10:compile
| +- org.springframework:spring-web:jar:4.3.14.RELEASE:compile
| | +- org.springframework:spring-aop:jar:4.3.14.RELEASE:compile
| | +- org.springframework:spring-beans:jar:4.3.14.RELEASE:compile
| | \- org.springframework:spring-context:jar:4.3.14.RELEASE:compile
| \- org.springframework:spring-webmvc:jar:4.3.14.RELEASE:compile
| \- org.springframework:spring-expression:jar:4.3.14.RELEASE:compile
+- org.springframework.boot:spring-boot-devtools:jar:1.5.10.RELEASE:compile
| +- org.springframework.boot:spring-boot:jar:1.5.10.RELEASE:compile
| \- org.springframework.boot:spring-boot-autoconfigure:jar:1.5.10.RELEASE:compile
+- commons-io:commons-io:jar:2.6:compile
+- com.amazonaws:aws-java-sdk-s3:jar:1.11.276:compile
| +- com.amazonaws:aws-java-sdk-kms:jar:1.11.276:compile
| +- com.amazonaws:aws-java-sdk-core:jar:1.11.276:compile
| | +- org.apache.httpcomponents:httpclient:jar:4.5.5:compile
| | | \- org.apache.httpcomponents:httpcore:jar:4.4.9:compile
| | +- software.amazon.ion:ion-java:jar:1.0.2:compile
| | +- com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:jar:2.8.10:compile
| | \- joda-time:joda-time:jar:2.9.9:compile
| \- com.amazonaws:jmespath-java:jar:1.11.276:compile
+- org.apache.tinkerpop:tinkergraph-gremlin:jar:3.3.1:compile
| +- org.apache.tinkerpop:gremlin-core:jar:3.3.1:compile
| | +- org.apache.tinkerpop:gremlin-shaded:jar:3.3.1:compile
| | +- org.javatuples:javatuples:jar:1.2:compile
| | +- com.jcabi:jcabi-manifests:jar:1.1:compile
| | | \- com.jcabi:jcabi-log:jar:0.14:compile
| | +- com.squareup:javapoet:jar:1.8.0:compile
| | +- net.objecthunter:exp4j:jar:0.4.8:compile
| | \- org.slf4j:jcl-over-slf4j:jar:1.7.25:compile
| \- org.apache.commons:commons-lang3:jar:3.3.1:compile
+- org.apache.tinkerpop:gremlin-groovy:jar:3.3.1:compile
| +- org.apache.ivy:ivy:jar:2.3.0:compile
| +- org.mindrot:jbcrypt:jar:0.4:compile
| \- com.github.ben-manes.caffeine:caffeine:jar:2.3.5:compile
+- org.codehaus.groovy:groovy:jar:indy:2.4.13:compile
+- org.codehaus.groovy:groovy-groovysh:jar:indy:2.4.13:compile
| +- org.codehaus.groovy:groovy:jar:2.4.13:compile
| +- org.codehaus.groovy:groovy-console:jar:2.4.13:compile
| | +- org.codehaus.groovy:groovy-swing:jar:2.4.13:compile
| | \- org.codehaus.groovy:groovy-templates:jar:2.4.13:compile
| | \- org.codehaus.groovy:groovy-xml:jar:2.4.13:compile
| \- jline:jline:jar:2.12:compile
+- org.codehaus.groovy:groovy-json:jar:indy:2.4.13:compile
+- org.codehaus.groovy:groovy-jsr223:jar:indy:2.4.13:compile
+- org.janusgraph:janusgraph-core:jar:0.2.0:compile
| +- org.glassfish:javax.json:jar:1.0:compile
| +- com.codahale.metrics:metrics-core:jar:3.0.1:compile
| +- com.codahale.metrics:metrics-ganglia:jar:3.0.1:compile
| | \- info.ganglia.gmetric4j:gmetric4j:jar:1.0.3:compile
| +- com.codahale.metrics:metrics-graphite:jar:3.0.1:compile
| +- org.reflections:reflections:jar:0.9.9-RC1:compile
| | +- org.javassist:javassist:jar:3.21.0-GA:compile
| | \- dom4j:dom4j:jar:1.6.1:compile
| | \- xml-apis:xml-apis:jar:1.4.01:compile
| +- org.locationtech.spatial4j:spatial4j:jar:0.6:compile
| +- commons-collections:commons-collections:jar:3.2.2:compile
| +- commons-configuration:commons-configuration:jar:1.10:compile
| +- commons-codec:commons-codec:jar:1.10:compile
| +- com.google.guava:guava:jar:18.0:compile
| +- com.carrotsearch:hppc:jar:0.7.1:compile
| +- com.github.stephenc.high-scale-lib:high-scale-lib:jar:1.1.4:compile
| +- com.google.code.findbugs:jsr305:jar:3.0.0:compile
| +- org.noggit:noggit:jar:0.6:compile
| +- org.apache.commons:commons-text:jar:1.0:compile
| \- org.slf4j:slf4j-api:jar:1.7.25:compile
+- org.janusgraph:janusgraph-hbase:jar:0.2.0:compile
| \- ch.qos.logback:logback-classic:jar:1.1.11:compile
| \- ch.qos.logback:logback-core:jar:1.1.11:compile
+- org.janusgraph:janusgraph-lucene:jar:0.2.0:compile
| +- org.apache.lucene:lucene-core:jar:7.0.0:compile
| +- org.apache.lucene:lucene-analyzers-common:jar:7.0.0:compile
| +- org.apache.lucene:lucene-queryparser:jar:7.0.0:compile
| | +- org.apache.lucene:lucene-queries:jar:7.0.0:compile
| | \- org.apache.lucene:lucene-sandbox:jar:7.0.0:compile
| +- org.apache.lucene:lucene-spatial:jar:7.0.0:compile
| \- org.apache.lucene:lucene-spatial-extras:jar:7.0.0:compile
| \- org.apache.lucene:lucene-spatial3d:jar:7.0.0:compile
\- org.apache.hbase:hbase-client:jar:1.4.1:compile
+- org.apache.hbase:hbase-annotations:jar:1.4.1:compile
| +- com.github.stephenc.findbugs:findbugs-annotations:jar:1.3.9-1:compile
| +- log4j:log4j:jar:1.2.17:compile
| \- junit:junit:jar:4.12:compile
| \- org.hamcrest:hamcrest-core:jar:1.3:compile
+- org.apache.hbase:hbase-common:jar:1.4.1:compile
| +- org.mortbay.jetty:jetty-util:jar:6.1.26:compile
| \- org.apache.avro:avro:jar:1.7.7:compile
| +- com.thoughtworks.paranamer:paranamer:jar:2.3:compile
| \- org.xerial.snappy:snappy-java:jar:1.0.5:compile
+- org.apache.hbase:hbase-hadoop-compat:jar:1.4.1:compile
| +- org.apache.commons:commons-math:jar:2.2:compile
| \- org.apache.hbase:hbase-metrics-api:jar:1.4.1:compile
+- org.apache.hbase:hbase-hadoop2-compat:jar:1.4.1:compile
| \- org.apache.hbase:hbase-metrics:jar:1.4.1:compile
| \- io.dropwizard.metrics:metrics-core:jar:3.1.5:compile
+- org.apache.hbase:hbase-protocol:jar:1.4.1:compile
+- commons-lang:commons-lang:jar:2.6:compile
+- commons-logging:commons-logging:jar:1.2:compile
+- com.google.protobuf:protobuf-java:jar:2.5.0:compile
+- io.netty:netty-all:jar:4.1.8.Final:compile
+- org.apache.zookeeper:zookeeper:jar:3.4.10:compile
| \- org.slf4j:slf4j-log4j12:jar:1.7.25:compile
+- org.apache.htrace:htrace-core:jar:3.1.0-incubating:compile
+- org.codehaus.jackson:jackson-mapper-asl:jar:1.9.13:compile
| \- org.codehaus.jackson:jackson-core-asl:jar:1.9.13:compile
+- org.jruby.jcodings:jcodings:jar:1.0.8:compile
+- org.jruby.joni:joni:jar:2.1.2:compile
+- com.yammer.metrics:metrics-core:jar:2.2.0:compile
+- org.apache.hadoop:hadoop-auth:jar:2.7.4:compile
| +- org.apache.directory.server:apacheds-kerberos-codec:jar:2.0.0-M15:compile
| | +- org.apache.directory.server:apacheds-i18n:jar:2.0.0-M15:compile
| | +- org.apache.directory.api:api-asn1-api:jar:1.0.0-M20:compile
| | \- org.apache.directory.api:api-util:jar:1.0.0-M20:compile
| \- org.apache.curator:curator-framework:jar:2.7.1:compile
+- org.apache.hadoop:hadoop-common:jar:2.7.4:compile
| +- org.apache.hadoop:hadoop-annotations:jar:2.7.4:compile
| | \- jdk.tools:jdk.tools:jar:1.8:system
| +- commons-cli:commons-cli:jar:1.2:compile
| +- org.apache.commons:commons-math3:jar:3.1.1:compile
| +- xmlenc:xmlenc:jar:0.52:compile
| +- commons-httpclient:commons-httpclient:jar:3.1:compile
| +- commons-net:commons-net:jar:3.1:compile
| +- org.mortbay.jetty:jetty-sslengine:jar:6.1.26:compile
| +- com.google.code.gson:gson:jar:2.8.2:compile
| +- com.jcraft:jsch:jar:0.1.54:compile
| +- org.apache.curator:curator-client:jar:2.7.1:compile
| +- org.apache.curator:curator-recipes:jar:2.7.1:compile
| \- org.apache.commons:commons-compress:jar:1.4.1:compile
| \- org.tukaani:xz:jar:1.0:compile
\- org.apache.hadoop:hadoop-mapreduce-client-core:jar:2.7.4:compile
+- org.apache.hadoop:hadoop-yarn-common:jar:2.7.4:compile
| +- org.apache.hadoop:hadoop-yarn-api:jar:2.7.4:compile
| \- javax.xml.bind:jaxb-api:jar:2.2.2:compile
| +- javax.xml.stream:stax-api:jar:1.0-2:compile
| \- javax.activation:activation:jar:1.1:compile
\- io.netty:netty:jar:3.6.2.Final:compile
有任何想法如何解决此问题？
答案 0 :(得分：0)
我总是通过Spring Initializer启动我的Spring Boot Groovy项目，以确保我有一个很好的起点。你缺少的一件事是GMaven，我认为在这里使用Groovy和Maven是必要的。
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.codehaus.gmavenplus</groupId>
<artifactId>gmavenplus-plugin</artifactId>
<version>1.5</version>
<executions>
<execution>
<goals>
<goal>addSources</goal>
<goal>addTestSources</goal>
<goal>generateStubs</goal>
<goal>compile</goal>
<goal>testGenerateStubs</goal>
<goal>testCompile</goal>
<goal>removeStubs</goal>
<goal>removeTestStubs</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
没有时间验证，但这是我看到的第一件事。如果这没有帮助，请转到spring初始化程序并生成一个项目并将其用作模板。