我一直被这个问题所困扰,并设法将其缩小到一个小文件,该文件在任务中设置为从Ant调用时失败,但在设置为时成功。java.lang.VerifyError
fork
false
<java>
fork
true
独立的文件是:
package foo;
import javax.xml.ws.Endpoint;
import javax.jws.WebService;
@WebService
class Hello {
public String sayHello() {
return "hello";
}
}
public class FooMain {
public static void main(String args[]) throws Exception {
Object implementor = new Hello();
String address = "http://localhost:9000/SoapContext/SoapPort";
Endpoint.publish(address, implementor);
}
}
当使用 Ant 调用并fork
设置false
它时,会抛出:
[java] java.lang.VerifyError: Bad type on operand stack
[java] Exception Details:
[java] Location:
[java] com/sun/net/httpserver/spi/HttpServerProvider$1.run()Ljava/lang/Object; @27: invokestatic
[java] Reason:
[java] Type 'sun/net/httpserver/DefaultHttpServerProvider' (current frame, stack[0]) is not assignable to 'com/sun/net/httpserver/spi/HttpServerProvider'
[java] Current Frame:
[java] bci: @27
[java] flags: { }
[java] locals: { 'com/sun/net/httpserver/spi/HttpServerProvider$1' }
[java] stack: { 'sun/net/httpserver/DefaultHttpServerProvider' }
[java] Bytecode:
[java] 0000000: b800 2599 0007 b800 27b0 b800 2699 0007
[java] 0000010: b800 27b0 bb00 1a59 b700 2ab8 0028 57b8
[java] 0000020: 0027 b0
[java] Stackmap Table:
[java] same_frame(@10)
fork
当使用set调用时,true
它会成功。特定的异常VerifyError
,尤其是与“ Bad type on operand stack
”结合时,从我所读到的内容中指向编译器错误,但是根据Ant 任务的fork
属性,它为什么会成功或失败,这超出了我的理解。<java>
有什么想法吗?我正在Ubuntu 12.04
使用以下 java 工具运行:
$ java -version
java version "1.7.0_40"
Java(TM) SE Runtime Environment (build 1.7.0_40-b43)
Java HotSpot(TM) Server VM (build 24.0-b56, mixed mode)
$ javac -version
javac 1.7.0_40
$ ant -version
Apache Ant(TM) version 1.8.2 compiled on December 3 2011
$ ant -diagnostics | grep java.vm
java.vm.version : 24.0-b56
java.vm.vendor : Oracle Corporation
java.vm.name : Java HotSpot(TM) Server VM
java.vm.specification.name : Java Virtual Machine Specification
java.vm.specification.vendor : Oracle Corporation
java.vm.specification.version : 1.7
java.vm.info : mixed mode
重要更新
当从 Ant 调用并fork
设置为时,false
我还必须显式添加/usr/lib/jvm/jdk1.7.0/jre/lib/rt.jar
到 CLASSPATH 以触发VerifyError
异常。否则,它会在到达该点之前失败:
javax.xml.ws.WebServiceException: Provider com.sun.xml.internal.ws.spi.ProviderImpl not found
当然,必须添加rt.jar
CLASSPATH 非常奇怪,尤其是因为它是我正在使用rt.jar
的版本。java