JSBuilder 3 with Windows is highly Sensitive to Java Versions
After messing around just now I discovered that if you use the latest x64 version of Java to compile with jsbuilder 3 you will get the error Stream: “Could not open the pipe” (exec://java -jar.
I found that
x64 jdk1.6.0_21 works.
x64 jdk1.6.0_32 does not work.
x64 jdk1.7.0_3 does not work.
This should probably be fixed in the Extjs4 zip for future releases.
I believe these issues have been worked on in the latest RC2 version about to be released.
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