Correct. Microsoft could make J++ or whatever; they just couldn't call it Java.
The particular issue was that Microsoft was extending some of the Java language (and maybe com.sun?) classes. If you used any of their extensions, then you had code that could only be compiled with Microsoft's compilers, and you were locked in. (The "extend" phase, which is then leveraged for the "extinguish" phase.)
The particular issue was that Microsoft was extending some of the Java language (and maybe com.sun?) classes. If you used any of their extensions, then you had code that could only be compiled with Microsoft's compilers, and you were locked in. (The "extend" phase, which is then leveraged for the "extinguish" phase.)