我正在尝试将GWT升级到v2.4。我遇到了问题。当Run As - ＆gt; Ant Built（在升级项目之后），.xml文件丢失（未在项目中生成）并且项目构建成功，但是有一些奇怪的行为在控制台中显示错误。我将发布出现的错误（其中一些）。
我使用以下内容：
操作系统是Windows。
我将编译器设为jdk1.7而不是jre1.5。
我在环境变量中设置了这些：classpath指向C：\ Program Files \ Documentum \ dctm.jar; C：\ Documentum \ config;％GWT_HOME％;％GWT_HOME％\ gwt-user.jar; ％GWT_HOME％\ GWT-dev.jar;％GWT_HOME％\ GWT-的servlet.jar;％的junit％
GWT_HOME D：\ products \ DSS 2012 \ eclipse-jee-indigo-SR2-win32 \ eclipse \ plugins \ com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37 \ gwt-2.4 0.0
JAVA_HOME“C：\ Program Files \ Java \ jdk1.7.0_05”
junit％JUNIT_HOME％\ junit.jar
JUNIT_HOME D：\ products \ DSS 2012 \ eclipse-jee-indigo-SR2-win32 \ eclipse \ plugins \ org.junit_4.8.2.v4_8_2_v20110321-1705
在日食中 - ＆gt;偏好 - ＆gt; Java - ＆gt;编译器 - ＆gt;编译器合规性级别为1.7
在日食中 - ＆gt;偏好 - ＆gt; Java - ＆gt;已安装的JRE - ＆gt;将其设置为jdk1.7.0_05
这些是编译过程中出现的一些错误（我得到的结果已成功编译）
[java] Loaded 2283 units from persistent store.
[java] Found 2215 cached units. Used 2215 / 2215 units from cache.
[java] Added 0 units to persistent cache.
[java] Validating newly compiled units
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/editor/client/EditorDriver.java'
[java] Line 20: The import javax.validation.ConstraintViolation cannot be resolved
[java] Line 97: ConstraintViolation cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/editor/client/impl/AbstractSimpleBeanEditorDriver.java'
[java] Line 28: Name clash: The method setConstraintViolations(Iterable<ConstraintViolation<?>>) of type BaseEditorDriver<T,E> has the same erasure as setConstraintViolations(Iterable<ConstraintViolation<?>>) of type EditorDriver<T> but does not override it
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/editor/client/impl/BaseEditorDriver.java'
[java] Line 31: The import javax.validation.ConstraintViolation cannot be resolved
[java] Line 66: ConstraintViolation cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/editor/client/impl/SimpleViolation.java'
[java] Line 25: The import javax.validation.ConstraintViolation cannot be resolved
[java] Line 40: ConstraintViolation cannot be resolved to a type
[java] Line 43: ConstraintViolation cannot be resolved to a type
[java] Line 44: Missing code implementation in the compiler
[java] Line 49: ConstraintViolation cannot be resolved to a type
[java] Line 49: Missing code implementation in the compiler
[java] Line 70: ConstraintViolation cannot be resolved to a type
[java] Line 72: ConstraintViolation cannot be resolved to a type
[java] Line 73: ConstraintViolation<?> cannot be resolved to a type
[java] Line 78: ConstraintViolation<capture#2-of ?> cannot be resolved to a type
[java] Line 83: ConstraintViolation<capture#3-of ?> cannot be resolved to a type
[java] Line 92: ConstraintViolation<capture#4-of ?> cannot be resolved to a type
[java] Line 97: ConstraintViolation<capture#5-of ?> cannot be resolved to a type
[java] Line 102: ConstraintViolation cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/editor/client/testing/MockSimpleBeanEditorDriver.java'
[java] Line 26: The import javax.validation.ConstraintViolation cannot be resolved
[java] Line 35: The type MockSimpleBeanEditorDriver<T,E> must implement the inherited abstract method EditorDriver<T>.setConstraintViolations(Iterable<ConstraintViolation<?>>)
[java] Line 107: Name clash: The method setConstraintViolations(Iterable<ConstraintViolation<?>>) of type MockSimpleBeanEditorDriver<T,E> has the same erasure as setConstraintViolations(Iterable<ConstraintViolation<?>>) of type EditorDriver<T> but does not override it
[java] Line 108: ConstraintViolation cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/AbstractGwtValidatorFactory.java'
[java] Line 21: The import javax.validation.ConstraintValidatorFactory cannot be resolved
[java] Line 23: The import javax.validation.TraversableResolver cannot be resolved
[java] Line 24: The import javax.validation.Validator cannot be resolved
[java] Line 25: The import javax.validation.ValidatorContext cannot be resolved
[java] Line 26: The import javax.validation.ValidatorFactory cannot be resolved
[java] Line 57: ValidatorFactory cannot be resolved to a type
[java] Line 67: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 68: The method create(Class<?>) from the type GWT refers to the missing type ConstraintValidatorFactory
[java] Line 68: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 75: TraversableResolver cannot be resolved to a type
[java] Line 76: The method create(Class<?>) from the type GWT refers to the missing type TraversableResolver
[java] Line 76: TraversableResolver cannot be resolved to a type
[java] Line 79: Validator cannot be resolved to a type
[java] Line 81: The method getConstraintValidatorFactory() from the type AbstractGwtValidatorFactory refers to the missing type ConstraintValidatorFactory
[java] Line 82: The method getTraversableResolver() from the type AbstractGwtValidatorFactory refers to the missing type TraversableResolver
[java] Line 91: ValidatorContext cannot be resolved to a type
[java] Line 92: The method create(Class<?>) from the type GWT refers to the missing type ValidatorContext
[java] Line 92: ValidatorContext cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/BaseGwtConfiguration.java'
[java] Line 23: The import javax.validation.ConstraintValidatorFactory cannot be resolved
[java] Line 25: The import javax.validation.TraversableResolver cannot be resolved
[java] Line 26: The import javax.validation.ValidatorFactory cannot be resolved
[java] Line 27: The import javax.validation.spi.BootstrapState cannot be resolved
[java] Line 40: BootstrapState cannot be resolved to a type
[java] Line 43: BootstrapState cannot be resolved to a type
[java] Line 45: BootstrapState cannot be resolved to a type
[java] Line 53: ValidatorFactory cannot be resolved to a type
[java] Line 55: The method buildValidatorFactory(ConfigurationState) from the type GwtValidationProvider refers to the missing type ValidatorFactory
[java] Line 59: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 64: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 65: The method create(Class<?>) from the type GWT refers to the missing type ConstraintValidatorFactory
[java] Line 65: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 72: TraversableResolver cannot be resolved to a type
[java] Line 73: The method create(Class<?>) from the type GWT refers to the missing type TraversableResolver
[java] Line 73: TraversableResolver cannot be resolved to a type
[java] Line 88: TraversableResolver cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/BaseMessageInterpolator.java'
[java] Line 26: The import javax.validation.metadata cannot be resolved
[java] Line 41: ConstraintDescriptor cannot be resolved to a type
[java] Line 44: ConstraintDescriptor cannot be resolved to a type
[java] Line 45: ConstraintDescriptor<?> cannot be resolved to a type
[java] Line 49: ConstraintDescriptor cannot be resolved to a type
[java] Line 50: ConstraintDescriptor<capture#2-of ?> cannot be resolved to a type
[java] Line 134: The method getConstraintDescriptor() from the type MessageInterpolator.Context refers to the missing type ConstraintDescriptor
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/GwtConstraintValidatorFactory.java'
[java] Line 18: The import javax.validation.ConstraintValidator cannot be resolved
[java] Line 19: The import javax.validation.ConstraintValidatorFactory cannot be resolved
[java] Line 46: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 53: ConstraintValidator cannot be resolved to a type
[java] Line 55: ConstraintValidatorFactory cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/GwtTraversableResolver.java'
[java] Line 20: The import javax.validation.Path cannot be resolved
[java] Line 21: The import javax.validation.Path cannot be resolved
[java] Line 22: The import javax.validation.TraversableResolver cannot be resolved
[java] Line 30: TraversableResolver cannot be resolved to a type
[java] Line 33: Node cannot be resolved to a type
[java] Line 34: Path cannot be resolved to a type
[java] Line 40: Node cannot be resolved to a type
[java] Line 41: Path cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/GwtValidationProviderResolver.java'
[java] Line 24: The import javax.validation.ValidationProviderResolver cannot be resolved
[java] Line 25: The import javax.validation.spi.ValidationProvider cannot be resolved
[java] Line 35: ValidationProviderResolver cannot be resolved to a type
[java] Line 37: ValidationProvider cannot be resolved to a type
[java] Line 38: The method createValidationProviderList() from the type GwtValidationProviderResolver refers to the missing type ValidationProvider
[java] Line 40: ValidationProvider cannot be resolved to a type
[java] Line 41: ValidationProvider cannot be resolved to a type
[java] Line 41: ValidationProvider cannot be resolved to a type
[java] Line 42: ValidationProvider cannot be resolved to a type
[java] Line 42: The method create(Class<?>) from the type GWT refers to the missing type ValidationProvider
[java] Line 42: ValidationProvider cannot be resolved to a type
[java] Line 47: ValidationProvider cannot be resolved to a type
[java] Line 48: Missing code implementation in the compiler
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/GwtValidatorContext.java'
[java] Line 21: The import javax.validation.ConstraintValidatorFactory cannot be resolved
[java] Line 23: The import javax.validation.TraversableResolver cannot be resolved
[java] Line 24: The import javax.validation.Validator cannot be resolved
[java] Line 25: The import javax.validation.ValidatorContext cannot be resolved
[java] Line 26: The import javax.validation.ValidatorFactory cannot be resolved
[java] Line 34: ValidatorContext cannot be resolved to a type
[java] Line 36: ValidatorFactory cannot be resolved to a type
[java] Line 38: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 38: The method getConstraintValidatorFactory() from the type AbstractGwtValidatorFactory refers to the missing type ConstraintValidatorFactory
[java] Line 40: TraversableResolver cannot be resolved to a type
[java] Line 40: The method getTraversableResolver() from the type AbstractGwtValidatorFactory refers to the missing type TraversableResolver
[java] Line 42: ValidatorContext cannot be resolved to a type
[java] Line 43: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 45: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 45: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 47: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 52: Validator cannot be resolved to a type
[java] Line 54: ConstraintValidatorFactory cannot be resolved to a type
[java] Line 55: TraversableResolver cannot be resolved to a type
[java] Line 59: ValidatorContext cannot be resolved to a type
[java] Line 69: ValidatorContext cannot be resolved to a type
[java] Line 70: TraversableResolver cannot be resolved to a type
[java] Line 72: TraversableResolver cannot be resolved to a type
[java] Line 72: TraversableResolver cannot be resolved to a type
[java] Line 74: TraversableResolver cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/Validation.java'
[java] Line 23: The import javax.validation.ValidationException cannot be resolved
[java] Line 24: The import javax.validation.ValidationProviderResolver cannot be resolved
[java] Line 25: The import javax.validation.ValidatorFactory cannot be resolved
[java] Line 26: The import javax.validation.bootstrap cannot be resolved
[java] Line 27: The import javax.validation.bootstrap cannot be resolved
[java] Line 28: The import javax.validation.spi.BootstrapState cannot be resolved
[java] Line 29: The import javax.validation.spi.ValidationProvider cannot be resolved
[java] Line 93: GenericBootstrap cannot be resolved to a type
[java] Line 94: BootstrapState cannot be resolved to a type
[java] Line 96: ValidationProviderResolver cannot be resolved to a type
[java] Line 97: ValidationProviderResolver cannot be resolved to a type
[java] Line 100: ValidationProviderResolver cannot be resolved to a type
[java] Line 100: ValidationProviderResolver cannot be resolved to a type
[java] Line 101: The method getDefaultValidationProviderResolver() from the type Validation.GenericBootstrapImpl refers to the missing type ValidationProviderResolver
[java] Line 101: ValidationProviderResolver cannot be resolved to a type
[java] Line 103: ValidationProvider cannot be resolved to a type
[java] Line 107: ValidationException cannot be resolved to a type
[java] Line 113: ValidationException cannot be resolved to a type
[java] Line 121: ValidationException cannot be resolved to a type
[java] Line 128: ValidationProviderResolver cannot be resolved to a type
[java] Line 129: ValidationProviderResolver cannot be resolved to a type
[java] Line 130: ValidationProviderResolver cannot be resolved to a type
[java] Line 130: ValidationProviderResolver cannot be resolved to a type
[java] Line 132: ValidationProviderResolver cannot be resolved to a type
[java] Line 135: ValidationProviderResolver cannot be resolved to a type
[java] Line 136: ValidationProviderResolver cannot be resolved to a type
[java] Line 139: GenericBootstrap cannot be resolved to a type
[java] Line 139: ValidationProviderResolver cannot be resolved to a type
[java] Line 140: ValidationProviderResolver cannot be resolved to a type
[java] Line 147: ValidationProvider cannot be resolved to a type
[java] Line 148: ProviderSpecificBootstrap cannot be resolved to a type
[java] Line 150: ValidationProviderResolver cannot be resolved to a type
[java] Line 166: ValidationException cannot be resolved to a type
[java] Line 171: ValidationProviderResolver cannot be resolved to a type
[java] Line 172: ValidationProviderResolver cannot be resolved to a type
[java] Line 172: The method getDefaultValidationProviderResolver() from the type Validation.GenericBootstrapImpl refers to the missing type ValidationProviderResolver
[java] Line 175: ValidationProviderResolver cannot be resolved to a type
[java] Line 178: ValidationProvider cannot be resolved to a type
[java] Line 180: ValidationProviderResolver cannot be resolved to a type
[java] Line 182: ValidationException cannot be resolved to a type
[java] Line 186: ValidationProvider cannot be resolved to a type
[java] Line 190: ValidationProvider cannot be resolved to a type
[java] Line 190: ValidationProvider cannot be resolved to a type
[java] Line 194: ValidationException cannot be resolved to a type
[java] Line 206: ProviderSpecificBootstrap cannot be resolved to a type
[java] Line 207: ValidationProviderResolver cannot be resolved to a type
[java] Line 208: ValidationProviderResolver cannot be resolved to a type
[java] Line 227: ValidatorFactory cannot be resolved to a type
[java] Line 228: The method byDefaultProvider() from the type Validation refers to the missing type GenericBootstrap
[java] Line 248: GenericBootstrap cannot be resolved to a type
[java] Line 276: ValidationProvider cannot be resolved to a type
[java] Line 277: ProviderSpecificBootstrap cannot be resolved to a type
[java] Line 278: Bound mismatch: The type U is not a valid substitute for the bounded parameter <U extends ValidationProvider<T>> of the type Validation.ProviderSpecificBootstrapImpl<T,U>
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/constraints/AbstractDecimalMaxValidator.java'
[java] Line 20: The import javax.validation.ConstraintValidator cannot be resolved
[java] Line 21: The import javax.validation.constraints.DecimalMax cannot be resolved
[java] Line 31: ConstraintValidator cannot be resolved to a type
[java] Line 31: DecimalMax cannot be resolved to a type
[java] Line 39: DecimalMax cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/constraints/AbstractDecimalMinValidator.java'
[java] Line 20: The import javax.validation.ConstraintValidator cannot be resolved
[java] Line 21: The import javax.validation.constraints.DecimalMin cannot be resolved
[java] Line 30: ConstraintValidator cannot be resolved to a type
[java] Line 30: DecimalMin cannot be resolved to a type
[java] Line 34: DecimalMin cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/constraints/AbstractDigitsValidator.java'
[java] Line 20: The import javax.validation.ConstraintValidator cannot be resolved
[java] Line 21: The import javax.validation.constraints.Digits cannot be resolved
[java] Line 30: ConstraintValidator cannot be resolved to a type
[java] Line 30: Digits cannot be resolved to a type
[java] Line 35: Digits cannot be resolved to a type
[java] Errors in 'jar:file:/D:/products/DSS%202012/eclipse-jee-indigo-SR2-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.4.0.v201205021203-rel-r37/gwt-2.4.0/gwt-user.jar!/com/google/gwt/validation/client/constraints/AbstractMaxValidator.java'
[java] Line 21: The import javax.validation.ConstraintValidator cannot be resolved
[java] Line 22: The import javax.validation.constraints.Max cannot be resolved
[java] Line 29: ConstraintValidator cannot be resolved to a type
[java] Line 29: Max cannot be resolved to a type
[java] Line 33: Max cannot be resolved to a type
我不知道该怎么办。请任何帮助。
谢谢和问候，
阿里
答案 0 :(得分：3)
您必须将validation-api-1.0.0.GA.jar和validation-api-1.0.0.GA-sources.jar添加到类路径中。
顺便说一句，您在类路径中不需要gwt-servlet.jar，因为它是gwt-user.jar和gwt-dev.jar的子集;并且你应该将编译器合规级别设置为1.6，因为GWT还没有（还）支持Java 7功能（你可以使用JDK 7 - 除非你使用请求工厂，否则你需要升级到GWT 2.5.0-rc1然后 - 但你必须保持编译器符合1.6，或者至少确保你不使用任何Java 7功能-diamond操作符，打开字符串等.-）。
答案 1 :(得分：2)
有两点：