JavaC 创建进程错误 = 206，文件名或扩展名太长

Question

我试图编译java代码，但我得到错误：原因：java.io.IOException：无法运行程序"C：\jdk\bin\javac"：CreateProcess 错误 = 206，文件名或扩展名太长。

这是我的构建文件的内容：

 <path id="was.runtime">
            <!-- <fileset dir="C:UsersAdministrator.jenkinsworkspaceBUILD2TESTBUILD2TESTWebContentWEB-INFlib">
                <include name="*.jar"/>
              </fileset> -->          
             <fileset dir="${copy.from.path}/WebContent/WEB-INF/lib">
                <include name="*.jar" />
            </fileset> 
            <fileset dir="${was_home}/lib">
                <include name="**/*.jar" />
            </fileset>
            <fileset dir="${was_home}/plugins">
                <include name="**/*.jar" />
            </fileset>
      </path>
        <property name="was_cp" value="${toString:was.runtime}" />

<javac fork="yes" executable="${java.home}/bin/javac" compiler="javac1.6" includeantruntime="false" encoding="utf-8" srcdir="${workspace}/${project.name}/src" destdir="${workspace}/${project.name}/WebContent/WEB-INF/classes" classpath="${was_cp}">
                </javac>

我想也许我的类路径：${was_cp} 太长了。我该如何解决这个问题？

Answer 1

问题不在于你的classpath太大。而是你正在转换成一根巨大的字符串。只需改用 classpathref 属性：

<path id="was.runtime">        
    <fileset dir="${copy.from.path}/WebContent/WEB-INF/lib">
        <include name="*.jar" />
    </fileset> 
    <fileset dir="${was_home}/lib">
        <include name="**/*.jar" />
    </fileset>
    <fileset dir="${was_home}/plugins">
        <include name="**/*.jar" />
    </fileset>
</path>
<javac
    fork="yes"
    executable="${java.home}/bin/javac"
    compiler="javac1.6"
    includeantruntime="false"
    encoding="utf-8"
    srcdir="${workspace}/${project.name}/src"
    destdir="${workspace}/${project.name}/WebContent/WEB-INF/classes"
    classpathref="was.runtime"
/>