我一直在研究一个GWT项目，我相信自从我添加了新的依赖项后，我得到了以下错误。
无法执行目标org.codehaus.mojo：gwt-maven-plugin：2.6.1：项目项目的编译（默认）：命令[[
/ bin / sh -c / usr / lib / jvm / java-7-openjdk-i386 / jre / bin / java -Xmx512m -classpath /home/user/git/project/target/project-0.0.1- SNAPSHOT / WEB-INF / classes：/home/user/.m2/repository/A.jar：/home/user/.m2/repository/B.jar：... 更多依赖项 ... com.google.gwt.dev.Compiler -logLevel INFO -style OBF -war /home/user/git/project/target/project-0.0.1-SNAPSHOT -localWorkers 1 -XfragmentCount -1 -sourceLevel 1.6 -gen /home/user/git/project/target/.generated my.project.Project
echo $?显示返回的状态为1。 mvn package -X给出的堆栈跟踪看起来像
at org.apache.maven.lifecycle.internal.MojoExecutor.execute（MojoExecutor.java:217） 在org.apache.maven.lifecycle.internal.MojoExecutor.execute（MojoExecutor.java:153） 在org.apache.maven.lifecycle.internal.MojoExecutor.execute（MojoExecutor.java:145） 在org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject（LifecycleModuleBuilder.java:84） 在org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject（LifecycleModuleBuilder.java:59） 在org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild（LifecycleStarter.java:183） 在org.apache.maven.lifecycle.internal.LifecycleStarter.execute（LifecycleStarter.java:161） 在org.apache.maven.DefaultMaven.doExecute（DefaultMaven.java:320） 在org.apache.maven.DefaultMaven.execute（DefaultMaven.java:156） 在org.apache.maven.cli.MavenCli.execute（MavenCli.java:537） 在org.apache.maven.cli.MavenCli.doMain（MavenCli.java:196） 在org.apache.maven.cli.MavenCli.main（MavenCli.java:141） at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method） at sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:57） at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43） at java.lang.reflect.Method.invoke（Method.java:606） 在org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced（Launcher.java:290） 在org.codehaus.plexus.classworlds.launcher.Launcher.launch（Launcher.java:230） 在org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode（Launcher.java:409） 在org.codehaus.plexus.classworlds.launcher.Launcher.main（Launcher.java:352）
引起：org.codehaus.mojo.gwt.shell.ForkedProcessExecutionException：Command [[ / bin / sh -c / usr / lib / jvm / java-7-openjdk-i386 / jre / bin / java -Xmx512m -classpath /home/user/git/project/target/project-0.0.1-SNAPSHOT/WEB -INF / classes：/home/user/.m2/repository/A.jar：/home/user/.m2/repository/B.jar：... 更多依赖项 ...... com.google.gwt.dev.Compiler -logLevel INFO-style OBF -war /home/user/git/project/target/project-0.0.1-SNAPSHOT -localWorkers 1 -XfragmentCount -1 -sourceLevel 1.6 -gen / home / user / git / project / target / .generated my.project.Project ]]状态为1失败 at org.codehaus.mojo.gwt.shell.AbstractGwtShellMojo $ JavaCommand.execute（AbstractGwtShellMojo.java:485） 在org.codehaus.mojo.gwt.shell.CompileMojo.compile（CompileMojo.java:446） 在org.codehaus.mojo.gwt.shell.CompileMojo.doExecute（CompileMojo.java:351） 在org.codehaus.mojo.gwt.shell.AbstractGwtShellMojo.execute（AbstractGwtShellMojo.java:172） 在org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo（DefaultBuildPluginManager.java:101） 在org.apache.maven.lifecycle.internal.MojoExecutor.execute（MojoExecutor.java:209） ......还有19个
mvn package输出看起来像
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building project 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.5:resources (default-resources) @ project ---
[debug] execute contextualize
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 6 resources
[INFO]
[INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ project ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-war-plugin:2.1.1:exploded (default) @ project ---
[INFO] Exploding webapp
[INFO] Assembling webapp [project] in [/home/user/git/project/target/project-0.0.1-SNAPSHOT]
[INFO] Processing war project
[INFO] Copying webapp resources [/home/user/git/project/src/main/webapp]
[INFO] Webapp assembled in [475 msecs]
[INFO]
[INFO] --- maven-resources-plugin:2.5:testResources (default-testResources) @ project ---
[debug] execute contextualize
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:2.3.2:testCompile (default-testCompile) @ project ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-surefire-plugin:2.10:test (default-test) @ project ---
[INFO] Surefire report directory: /home/user/git/project/target/surefire-reports
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Results :
Tests run: 0, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] --- gwt-maven-plugin:2.6.0:compile (default) @ project ---
[INFO] auto discovered modules [my.module.Module, my.project.Project]
[INFO] my.module.Module has no EntryPoint - compilation skipped
[INFO] Compiling module my.project.Project
[INFO] Validating units:
[INFO] Ignored 115 units with compilation errors in first pass.
[INFO] Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.
[INFO] Computing all possible rebind results for 'com.google.gwt.useragent.client.UserAgentAsserter'
[INFO] Rebinding com.google.gwt.useragent.client.UserAgentAsserter
[INFO] Checking rule <generate-with class='com.google.web.bindery.requestfactory.gwt.rebind.RequestFactoryGenerator'/>
[INFO] [WARN] Unknown type 'com.google.web.bindery.requestfactory.shared.RequestFactory' specified in deferred binding rule
[INFO] Checking rule <generate-with class='com.google.web.bindery.requestfactory.gwt.rebind.RequestFactoryEditorDriverGenerator'/>
[INFO] [WARN] Unknown type 'com.google.web.bindery.requestfactory.gwt.client.RequestFactoryEditorDriver' specified in deferred binding rule
[INFO] Checking rule <generate-with class='com.google.gwt.editor.rebind.SimpleBeanEditorDriverGenerator'/>
[INFO] [WARN] Detected warnings related to 'com.google.gwt.editor.client.SimpleBeanEditorDriver'. Are validation-api-<version>.jar and validation-api-<version>-sources.jar on the classpath?
[INFO] Specify -logLevel DEBUG to see all errors.
[INFO] [WARN] Unknown type 'com.google.gwt.editor.client.SimpleBeanEditorDriver' specified in deferred binding rule
[INFO] Rebinding com.google.gwt.useragent.client.UserAgentAsserter
[INFO] Checking rule <generate-with class='com.google.web.bindery.requestfactory.gwt.rebind.RequestFactoryGenerator'/>
[INFO] [WARN] Unknown type 'com.google.web.bindery.requestfactory.shared.RequestFactory' specified in deferred binding rule
[INFO] Checking rule <generate-with class='com.google.web.bindery.requestfactory.gwt.rebind.RequestFactoryEditorDriverGenerator'/>
[INFO] [WARN] Unknown type 'com.google.web.bindery.requestfactory.gwt.client.RequestFactoryEditorDriver' specified in deferred binding rule
[INFO] Rebinding com.google.gwt.useragent.client.UserAgentAsserter
[INFO] Checking rule <generate-with class='com.google.web.bindery.requestfactory.gwt.rebind.RequestFactoryGenerator'/>
[INFO] [WARN] Unknown type 'com.google.web.bindery.requestfactory.shared.RequestFactory' specified in deferred binding rule
[INFO] Checking rule <generate-with class='com.google.web.bindery.requestfactory.gwt.rebind.RequestFactoryEditorDriverGenerator'/>
[INFO] [WARN] Unknown type 'com.google.web.bindery.requestfactory.gwt.client.RequestFactoryEditorDriver' specified in deferred binding rule
... Lots of Rebinding similar to above...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 30.074s
[INFO] Finished at: Tue Jun 03 09:18:19 MST 2014
[INFO] Final Memory: 17M/436M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:gwt-maven-plugin:2.6.0:compile (default) on project project: Command [[
[ERROR] /usr/bin/java -Xmx512m -classpath *long classpath* com.google.gwt.dev.Compiler -logLevel INFO -style OBF -war /home/user/git/project/target/project-0.0.1-SNAPSHOT -localWorkers 8 -XfragmentCount -1 -sourceLevel 1.6 -gen /home/user/git/project/target/.generated my.project.Project
[ERROR] ]] failed with status 1
答案 0 :(得分：3)
我运行mvn package -X并发现以下错误
[INFO] [ERROR] Errors in 'gwtupload/client/DecoratedFileUpload.java'
[INFO] [ERROR] Line 371: Rebind result 'gwtupload.client.DecoratedFileUpload.DecoratedFileUploadImpl' cannot be abstract
所以我将依赖项gwtupload更新为解决了我的问题的新版本。
我之前尝试忽略此错误的原因是mvn package之前成功，在此特定版本中使用此依赖项。所以我认为这个错误一直存在，仍然会导致一个成功的包。
答案 1 :(得分：0)
当MVN在Cygwyn 32位版本中构建Vaadin项目时，我遇到了类似的问题。但当我切换到Cygwyn 64位时，这个问题就解决了。
[ERROR] Failed to execute goal com.vaadin:vaadin-maven-plugin:7.7.2:compile (default) on project vaadin-app: Command [[
...
[ERROR] ]] failed with status 1
[ERROR] -> [Help 1]
...
failed with status 1
at org.codehaus.mojo.gwt.shell.CompileMojo.compile(CompileMojo.java:582)
at org.codehaus.mojo.gwt.shell.CompileMojo.doExecute(CompileMojo.java:435)
at org.codehaus.mojo.gwt.shell.AbstractGwtShellMojo.execute(AbstractGwtShellMojo.java:182)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)