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Re: Release of javaCompiler 0.4 (has a gcj 4.1.1 core)
Hello dezumondo
Thanks a lot for your enlightenment. I was thinking that this analysis
may be useful for other beginners like me so I posted this to this
mailing list instead. :)
Please move this discussion to the javaCompiler-users list (see
http://javacompiler.mtsystems.ch/mailinglists.html) because this is not
gcj specific. It's more about how to use javaCompiler...
1. Using the JavaCompiler, I managed to compile the SwingMinimal.class
(and SwingMinimal$Hello.class in the "3_swing_minimal_class" folder)
into the native executable. My manual way of typing in the command
line to compile the SwingMinimal.class using GCJ failed as expected
because I did not do any mapping of AWT and Swing into SwingWT.
All tests are usual java source code or usual java bytecode generated by
suns jdk1.5 javac. They are there to test the different steps of
javaCompiler and thought as a starting point for javaCompiler users.
See http://javacompiler.mtsystems.ch/technical.html for an overview.
2. Both the JavaCompiler and my manual way of compiling the
SwingMinimal.java (in "2_swing_minimal" folder) from the command line
failed due to the usage of generics. I tried using Sun's javac and it
was successful.
You've to check "enable Java 1.5 preprocessing" in the settings page:
http://javacompiler.mtsystems.ch/screenshots.html#settings
3. (2) was repeated using a "modified-into-importing-SwingWT-package"
SwingMinimal.java and the results are the same.
Java 1.5 language feature have nothing to do with generics.
4. Executing the bytecode produced from (2) and (3) were successful
using Sun's java.exe as expected. For (2), it was the usual window
that has a Java-look. For (3), it was a window that has a
Windows-look. Repeating this step with gij.exe (for bytecode produced
in (3) only) gave this output:
As I said. These are usual java source or class files to test the
preprocessing and postprocessing utilities of javaCompiler.
With regards to (2) and (3), I wonder if the .class files in (1)
produced from the .java file in (2) are compiled using javac or GCJ?
javac from suns jdk1.5
If GCJ was used, how did you solve the problems in (2) and (3)?
enable java 1.5 preprocessing and use a managed awt/swing project in
javaCompiler. the source file or bytecode file will be altered so that
they can be compiled with gcj...
Hope that helps...
regards
Marco