Unexpected and unexplained exception in Haikufy.java

[Carl van Denzen]

HaikuVM throws a runtime error. It would be nice if this exception was caught and would log in what string the error occurred.
Right now I am not interested in the cause of the error, but merely in the improvement of HaikuVM software.

Maybe something like this in Haikufy.java (the second try/catch is what I changed):

static void adjustClasspathAndMainClass() throws IOException {
    JavaClass jc =getClassFile(mainclass);

    String pack = jc.getClassName().replace(".", "/");
    pack=new File(pack).getPath().replace("\\", "/");
    if (!mainclass.equals(pack)) {
        try {
            jc =getClassFile(pack);
        } catch (FileNotFoundException e) {
            classpath+=";"+mainclass.substring(0, mainclass.length()-pack.length());
        } catch (StringIndexOutOfBoundsException e1) {
                        String message="In \"classpath+=\";\"+mainclass.substring(0, mainclass.length()-pack.length());\""
                                + ", mainclass="+mainclass+", mainclass.length="+mainclass.length()
                                + ", pack="+pack+", pack.length()="+pack.length();
                        throw new StringIndexOutOfBoundsException(message);
                    }
        mainclass=pack;
    }
}

D:\NetbeansProjects\hobby\BlinkLed\src\arduino\tutorial>echo # generating c file
s

generating c files

D:\NetbeansProjects\hobby\BlinkLed\src\arduino\tutorial>echo ###################

D:\NetbeansProjects\hobby\BlinkLed\src\arduino\tutorial>"""C:\Program Files\Java
\jdk1.7.0_13""\bin\java.exe" "-Dhaikuvm.home=d:\downloads\HaikuVM-1.0.2\haikuVM\ bin\.." "-DCOMMAND_NAME=haikulink" -classpath "d:\downloads\HaikuVM-1.0.2\haiku
VM\lib\pc\bcel-5.2.jar;d:\downloads\HaikuVM-1.0.2\haikuVM\lib\pc\haikutools.jar"
haikuvm.pc.tools.HaikuVM --bootclasspath "d:\downloads\HaikuVM-1.0.2\haikuVM\li
b\haikuvm\bootstrap.jar;d:\downloads\HaikuVM-1.0.2\haikuVM\lib\haikuvm\haikuRT.j
ar;d:\downloads\HaikuVM-1.0.2\haikuVM\lib\nxt\classes.jar" --classpath "." --boo
tclasspath d:\downloads\HaikuVM-1.0.2\haikuVM\lib\haikuvm\bootstrap.jar;d:\downl
oads\HaikuVM-1.0.2\haikuVM\lib\haikuvm\haikuRT.jar;d:\downloads\HaikuVM-1.0.2\ha
ikuVM\lib\nxt\classes.jar --classpath . -v --Config leonardo -o BlinkWithThread.
hex BlinkWithThread
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String ind
ex out of range: -17
at java.lang.String.substring(String.java:1911)
at haikuvm.pc.tools.Haikufy.adjustClasspathAndMainClass(Haikufy.java:257
)
at haikuvm.pc.tools.HaikuVM.haikulink(HaikuVM.java:268)
at haikuvm.pc.tools.HaikuVM.main(HaikuVM.java:93)

D:\NetbeansProjects\hobby\BlinkLed\src\arduino\tutorial>if errorlevel 1 goto :er
ror

D:\NetbeansProjects\hobby\BlinkLed\src\arduino\tutorial>echo ###################

D:\NetbeansProjects\hobby\BlinkLed\src\arduino\tutorial>echo # error while gener
ating c files

error while generating c files

[Carl van Denzen]

The improved error message:
D:\NetbeansProjects\hobby\BlinkLed\src\arduino\tutorial>"""C:\Program Files\Java
\jdk1.7.0_13""\bin\java.exe" "-Dhaikuvm.home=d:\downloads\HaikuVM-1.0.2\haikuVM\ bin\.." "-DCOMMAND_NAME=haikulink" -classpath "d:\downloads\HaikuVM-1.0.2\haiku
VM\lib\pc\bcel-5.2.jar;d:\downloads\HaikuVM-1.0.2\haikuVM\lib\pc\haikufier.jar"
haikuvm.pc.tools.HaikuVM --bootclasspath "d:\downloads\HaikuVM-1.0.2\haikuVM\lib
\haikuvm\bootstrap.jar;d:\downloads\HaikuVM-1.0.2\haikuVM\lib\haikuvm\haikuRT.ja
r;d:\downloads\HaikuVM-1.0.2\haikuVM\lib\nxt\classes.jar" --classpath "." --boot
classpath d:\downloads\HaikuVM-1.0.2\haikuVM\lib\haikuvm\bootstrap.jar;d:\downlo
ads\HaikuVM-1.0.2\haikuVM\lib\haikuvm\haikuRT.jar;d:\downloads\HaikuVM-1.0.2\hai
kuVM\lib\nxt\classes.jar --classpath . -v --Config leonardo -o BlinkWithThread.h
ex BlinkWithThread
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String ind
ex out of range: -17:In "classpath+=";"+mainclass.substring(0, mainclass.length(
)-pack.length());", mainclass=BlinkWithThread, mainclass.length=15, pack=arduino
/tutorial/BlinkWithThread, pack.length()=32
at haikuvm.pc.tools.Haikufy.adjustClasspathAndMainClass(Haikufy.java:250
)
at haikuvm.pc.tools.HaikuVM.haikulink(HaikuVM.java:268)
at haikuvm.pc.tools.HaikuVM.main(HaikuVM.java:93)

[genom2]

Thank you for your remark. This is the kind of help I (or an open source project) need.

It's fixed now and will come with version 1.0.3. Telling you something like this:
"
Exception in thread "main" java.io.FileNotFoundException:
Current directory is: D:\NetbeansProjects\hobby\BlinkLed\src\arduino\tutorial\.
File: 'arduino/tutorial/BlinkWithThread.class'
not found in bootclasspath='.....'
and classpath='.'
Class files are searched with respect to their package prefix. Please, consider to change the current directory or classpath.
"