这是我的代码(摘自SO question发布的回复):
package my;
import java.net.MalformedURLException;
import java.net.URL;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.ConverterException;
import javax.faces.convert.FacesConverter;
@FacesConverter(forClass = URL.class)
public class UrlConverter implements Converter {
@Override
public final Object getAsObject(
final FacesContext context,
final UIComponent component,
final String value) throws ConverterException {
try {
return new URL(value);
} catch (MalformedURLException ex) {
throw new ConverterException(
String.format("Cannot convert %s to URL", value),
ex
);
}
}
@Override
public final String getAsString(
final FacesContext context,
final UIComponent component,
final Object value) {
return ((URL)value).toString();
}
}
这是maven-checkstyle-plugin
所说的:
UrlConverter.java:0: Got an exception - java.lang.ClassFormatError:
Absent Code attribute in method that is not native or abstract
in class file javax/faces/convert/ConverterException
它是什么意思以及如何解决它?
答案 0 :(得分:0)
您可以尝试排除要检查的文件: How do I suppress all checks for a file in checkstyle
答案 1 :(得分:0)
问题是checkstyle在类路径中找不到javax.faces.convert.ConverterException
类。将此依赖项添加到pom.xml
解决了问题:
<dependency>
<groupId>javax.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>1.2</version>
</dependency>
答案 2 :(得分:0)
您可能正在使用已删除代码属性的javax:javaee-api:6.0依赖项。你可以使用org.jboss.spec:jboss-javaee-6.0,只要你没有使用Karaf的features-maven-plugin。