Correct jar lib for android ane

Hello.

I want to compile ane completely with ant. But there is a problem. My ane not works.

I realized experimentally that a problem in jar file: if I export jar with eclipse ide, ane works correctly. But if i compile jar with ant it not works. Both jar files look very similar and I can`t find difference.

JDK verion 1.7.0(upd.40)

This is my ant fragment:

<property name="FLEX_HOME" value="C:/Program Files (x86)/FlexSDK/4.11.0/"/> 
<property name="fre.lib" value="${FLEX_HOME}/lib/android/FlashRuntimeExtensions.jar" />
<property name="android.lib" value="C:/Program Files (x86)/Android SDK/sdk/platforms/android-10/android.jar" />
<target name="compile.classes" description="Compile java classes">
     <javac destdir="temp/java_classes" classpath="${fre.lib}:${android.lib}" fork="true">
          <src path="${java.classes}"/>
     </javac>
</target>
<target name="compile.jar" description="Make jar lib">
     <jar destfile="temp/libs/lib.jar">
          <fileset dir="temp/java_classes">
               <include name="**/*.class"/>
          </fileset>
     </jar>
</target>

How to compile jar lib correctly? Maybe I lost java comliler parameters?