我正在尝试将 GWT 升级到 v2.4。我正面临问题。当 Run As -> Ant Built （升级项目后）时，缺少 .xml 文件（项目中未生成）并且项目构建成功，但有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）。
我正在使用以下内容：
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：类路径指向 C:\Program Files\Documentum\dctm.jar;C:\Documentum\config;%GWT_HOME%;%GWT_HOME%\gwt-user.jar;%GWT_HOME%\gwt- dev.jar;%GWT_HOME%\gwt-servlet.jar;%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
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 eclipse --> Preferences --> Java --> compiler --> Compiler 合规级别为 1.7
在 eclipse --> Preferences --> Java --> Installed JREs --> 设置为 jdk1.7.0_05
这些是编译时出现的一些错误（我得到的结果是编译成功）
[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。
谢谢并恭祝安康，
阿里