我正在尝试使用带有gwt-maven-plugin的Maven运行遗留项目。我有以下错误
找到com.google.gwt.core.ext.typeinfo.JClassType接口,但预计会上课
与GWT 2.4.0连接。关于降级GWT或重新编译gwtp有一些答案,但我不明白。
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>2.4.0</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>i18n</goal>
</goals>
</execution>
</executions>
<configuration>
<runTarget>someTarget.html</runTarget>
<hostedWebapp>${webappDir}</hostedWebapp>
<i18nMessagesBundle>org.I18nMsg</i18nMessagesBundle>
</configuration>
</plugin>
<pluginManagement>
<plugins>
<pluginExecution>
<pluginExecutionFilter>
<groupId>
org.codehaus.mojo
</groupId>
<artifactId>
gwt-maven-plugin
</artifactId>
<versionRange>
[2.4.0,)
</versionRange>
<goals>
<goal>i18n</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute></execute>
</action>
</pluginExecution>
</pluginExecutions>
....
错误:
[INFO] Scanning for additional dependencies: jar:file:/C:/Users/xxx/.m2/repository/com/extjs/gxt/2.2.0/gxt-2.2.0.jar!/com/extjs/gxt/ui/client/core/El.java
[INFO] Computing all possible rebind results for 'com.extjs.gxt.ui.client.core.impl.ComputedStyleImpl'
[INFO] Rebinding com.extjs.gxt.ui.client.core.impl.ComputedStyleImpl
[INFO] Could not find an exact match rule. Using 'closest' rule <replace-with class='com.extjs.gxt.ui.client.core.impl.ComputedStyleImplIE'/> based on fall back values. You may need to implement a specific binding in case the fall back behavior does not replace the missing binding
[INFO] Rebinding com.extjs.gxt.ui.client.core.impl.ComputedStyleImpl
[INFO] Could not find an exact match rule. Using 'closest' rule <replace-with class='com.extjs.gxt.ui.client.core.impl.ComputedStyleImplIE'/> based on fall back values. You may need to implement a specific binding in case the fall back behavior does not replace the missing binding
[INFO] [ERROR] Errors in 'jar:file:/C:/Users/xxx/.m2/repository/com/extjs/gxt/2.2.0/gxt-2.2.0.jar!/com/extjs/gxt/ui/client/data/BeanModelLookup.java'
[INFO] [ERROR] Internal compiler error
[INFO] java.lang.IncompatibleClassChangeError: Found interface com.google.gwt.core.ext.typeinfo.JClassType, but class was expected
答案 0 :(得分:5)
GWT在过去的一两年中对其API进行了几次重大更改,而您正在遇到围绕GWT 2.2的一个。您使用的GXT版本是在GWT 2.2发布之前发布的,因此它不能自动与所有未来版本兼容......
你有一些选择 - 最干净的是转移到更新版本的GXT - 最近的2.2.x版本中有三个不同的jar,你需要-22版本,因为它与GWT兼容2.2.0及以后的当前(写作时为2.5.0-rc1)。
如果您无法更新到较新的GXT版本,请考虑针对您的GWT版本重新编译GXT。只需要重新编译几个类,主要是com.extjs.gxt.ui.rebind
中的类。
如果这是一个全新的项目,请考虑使用GXT 3 - 比2.x系列更好地利用GWT最佳实践,更好的性能和更多定期更新。