我最近開始嘗試升級Struts2的/春/ Hibernate應用程序的一些依賴關係是幾年過時的 - 主要是爲了儘量挑選注入@Enumerated註釋。聚甲醛是一路走來,這是一個很好的副作用調試java.lang.IncompatibleClassChangeError:實現類錯誤(春/休眠/ Struts的)
所有的代碼編譯和單元測試通過越來越乾淨,但服務器不會與
"Caused by: java.lang.IncompatibleClassChangeError: Implementing class"
錯誤信息啓動。
我跟着幾個線程談論的依賴追蹤版本不匹配 - 人們似乎常常得到兩個版本的Hibernate。我不認爲我有一個問題:
[INFO] [snip MyProjectName]
[INFO] \- org.hibernate:hibernate-entitymanager:jar:3.5.6-Final:compile
[INFO] +- org.hibernate:hibernate-core:jar:3.5.6-Final:compile
[INFO] \- org.hibernate:hibernate-annotations:jar:3.5.6-Final:compile
[INFO] \- org.hibernate:hibernate-commons-annotations:jar:3.2.0.Final:compile
起初我以爲3.2.0.Final引用是原因,但進一步的研究使其聽起來像它只是一個空的佔位符神器遺留的緣故。
我對Spring的依賴,我認爲是問題,但是,但是我不知道要解決什麼,或者如果我在看另一個紅鯡魚:
[INFO] [snip MyProjectName]
[INFO] +- org.springframework:org.springframework.orm:jar:3.1.1.RELEASE:compile
[INFO] | +- org.springframework:org.springframework.jdbc:jar:3.1.1.RELEASE:compile
[INFO] | \- org.springframework:org.springframework.transaction:jar:3.1.1.RELEASE:compile
[INFO] +- org.springframework:org.springframework.web:jar:3.1.1.RELEASE:compile
[INFO] | \- org.springframework:org.springframework.aop:jar:3.1.1.RELEASE:compile
[INFO] +- org.springframework:org.springframework.beans:jar:3.1.1.RELEASE:compile
[INFO] | \- org.springframework:org.springframework.asm:jar:3.1.1.RELEASE:compile
[INFO] +- org.springframework:org.springframework.context:jar:3.1.1.RELEASE:compile
[INFO] | \- org.springframework:org.springframework.expression:jar:3.1.1.RELEASE:compile
[INFO] +- org.springframework:org.springframework.core:jar:3.1.1.RELEASE:compile
[INFO] \- org.apache.struts:struts2-spring-plugin:jar:2.2.3.1:compile
[INFO] +- org.springframework:spring-beans:jar:2.5.6:compile
[INFO] +- org.springframework:spring-core:jar:2.5.6:compile
[INFO] +- org.springframework:spring-context:jar:2.5.6:compile
[INFO] \- org.springframework:spring-web:jar:2.5.6:compile
所以我覺得我看到了兩個可能的問題
Struts2的彈簧,插件在老版本的春天拉 - 不過到目前爲止,我發現每個Web資源說,Struts2的彈簧,插件應該隨着春天的新版本。我在這裏做錯了什麼?我還沒有找到其他更新版本的插件來嘗試。
爲了找到新版本的spring,我不得不切換到ERB spring版本庫,所以artifactIds在兩個版本中都不匹配 - 直接的spring依賴是org.springframework:org.springframe。 {component},而間接是org.springframework:spring- {component}。這是一個問題嗎?我試圖在ERB spring repository中尋找struts2-spring-plugin,但是他們沒有託管它,所以我懷疑我能找到與artifactId命名方案相匹配的版本。
我列出了下一個pom的完整依賴部分,以防上述情況都是紅鯡魚。我應該使用其他工具/調查來發現問題嗎?謝謝。
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.easymock</groupId>
<artifactId>easymockclassextension</artifactId>
<version>3.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>r07</version>
</dependency>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.1</version>
</dependency>
<dependency>
<groupId>org.dbunit</groupId>
<artifactId>dbunit</artifactId>
<version>2.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>3.5.6-Final</version>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901.jdbc3</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.orm</artifactId>
<version>3.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.web</artifactId>
<version>3.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.beans</artifactId>
<version>3.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.context</artifactId>
<version>3.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.core</artifactId>
<version>3.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
<version>2.2.3.1</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>2.2.3.1</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-config-browser-plugin</artifactId>
<version>2.2.3.1</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-json-plugin</artifactId>
<version>2.2.3.1</version>
</dependency>
<dependency>
<groupId>com.jgeppert.struts2.jquery</groupId>
<artifactId>struts2-jquery-plugin</artifactId>
<version>2.4.1</version>
</dependency>
<dependency>
<groupId>com.jgeppert.struts2.jquery</groupId>
<artifactId>struts2-jquery-grid-plugin</artifactId>
<version>2.4.1</version>
</dependency>
<dependency>
<groupId>com.jgeppert.struts2.jquery</groupId>
<artifactId>struts2-jquery-richtext-plugin</artifactId>
<version>2.4.1</version>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.16</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-sitemesh-plugin</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-convention-plugin</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>concurrent</groupId>
<artifactId>concurrent</artifactId>
<version>1.3.4</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.0.4</version>
</dependency>
</dependencies>