Electric 8.01 java compile problem

When I try to compile the java electric 8.01 source,
ant complains about a missing package
com.sun.electric.tool.simulation.interval.

If I look at the source subdirectory
com/sun/electric/tool/simulation/interval/
it is empty without any .java files.

Look like some files are missing in the source
distribution. Please help.


Thanks,

Kan

-----------------------------------------------------

ant
Buildfile: build.xml

init:

compile:
    [javac] Compiling 442 source files to
/root/INSTALL/electric
    [javac]
/root/INSTALL/electric/com/sun/electric/tool/user/menus/DebugMenus.java:60:
package com.sun.electric.tool.simulation.interval does
not exist
    [javac] import
com.sun.electric.tool.simulation.interval.Diode;
    [javac]                                           
      ^
    [javac]
/root/INSTALL/electric/com/sun/electric/tool/user/menus/DebugMenus.java:203:
cannot resolve symbol
    [javac] symbol: variable Diode
    [javac]             new ActionListener() { public
void actionPerformed(ActionEvent e) {
Diode.plotDiode(User.getWorkingDirectory() +
File.separator + "diode.raw"); } });
    [javac]            ^
    [javac] 2 errors
----------------------------------------------------

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