Re: [Ikvm-developers] Problems using ToolProvider.getSystemJavaCompiler in IKVM converted Assembly

[spama <mar...@si...>]

Hi Jeroen,

thanks for the quick response. I also had this in mind, but as you said the
IKVM.OpenJDK.Tools.dll should have everything included that's needed. but
how can i tell the IKVM to use it?
i also tried to add a reference to IKVM.OpenJDK.Tools.dll (forgot to
mention) whenn converting with ikvmc, but this also didn't help.. :-\


Jeroen Frijters wrote:
> 
> Hi Martin,
> 
> The simple answer is that IKVM tries to be a JRE, not JDK.
> 
> C:\j>\jdk1.7.0_13\bin\java Main
> Java compiler found!!! Hooraaay!!!
> 
> C:\j>\jre7u17\bin\java Main
> Java compiler not found!
> 
> Having said that, the javac code is present in IKVM.OpenJDK.Tools.dll so
> it probably not be too hard to somehow convice getSystemJavaCompiler to
> return a compiler.
> 
> One "problem" would be that it would be pretty slow, because javac reads
> the Java library classes from boot classpath, which is emulated on IKVM by
> the Virtual File System and these stub classes are generated on demand.
> 
> Regards,
> Jeroen
> 
>> -----Original Message-----
>> From: spama [mailto:mar...@si...]
>> Sent: Wednesday, March 13, 2013 14:56
>> To: ikv...@li...
>> Subject: [Ikvm-developers] Problems using
>> ToolProvider.getSystemJavaCompiler in IKVM converted Assembly
>> 
>> 
>> Hi everyone,
>> 
>> I have a problem with my application that uses the java compiler to
>> compile java source files to class files.
>> 
>> I try to describe the problem in detail:
>> 
>> I have a java module (modul_a.jar). Inside this module i'm using the
>> java
>> compiler:
>> 
>> JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
>> ... do some stuff ...
>> 
>> The JavaCompiler is returned and everything works perfect.
>> 
>> I convert this module to modul_a.dll using the ikvmc. When i run my
>> modul everything works fine but the call to
>> ToolProvider.getSystemJavaCompiler(); returns <null>.
>> 
>> I've tried many things to fix the problem, but couldn't get it working.
>> 
>> I searched the whole web for a solution of our problems and so far found
>> the following informations, that unfortunatly didn't help me to solve
>> the
>> problem:
>> http://old.nabble.com/Get-NULL-when-call-
>> ToolProvider.getSystemJavaCompiler()-td31891806.html
>> http://old.nabble.com/Get-NULL-when-call-
>> ToolProvider.getSystemJavaCompiler()-td31891806.html
>> http://weblog.ikvm.net/PermaLink.aspx?guid=ac6cfb6a-6138-4c36-895e-
>> 636c77242e39
>> http://weblog.ikvm.net/PermaLink.aspx?guid=ac6cfb6a-6138-4c36-895e-
>> 636c77242e39
>> http://weblog.ikvm.net/CommentView.aspx?guid=e52cb250-33b1-4d51-bb2e-
>> 8fa5c9e41e53
>> http://weblog.ikvm.net/CommentView.aspx?guid=e52cb250-33b1-4d51-bb2e-
>> 8fa5c9e41e53
>> http://sourceforge.net/tracker/index.php?func=detail&aid=2895155&group_i
>> d=69637&atid=525264
>> http://sourceforge.net/tracker/index.php?func=detail&aid=2895155&group_i
>> d=69637&atid=525264
>> 
>> To narrow it down i wrote a small test application:
>> 
>> import javax.tools.JavaCompiler;
>> import javax.tools.ToolProvider;
>> 
>> public class Main {
>> 
>>     public static void main(String[] args) {
>>         JavaCompiler c = ToolProvider.getSystemJavaCompiler();
>>         if(c == null)
>>         {
>>             System.out.println("Java compiler not found!");
>>         }
>>         else
>>         {
>>             System.out.println("Java compiler found!!! Hooraaay!!!");
>>         }
>>     }
>> }
>> 
>> for java the output is "Java compiler found!!! Hooraaay!!!" , for .NET
>> it is "Java compiler not found!".
>> 
>> I converted to ikvm using the following ikvmc calls:
>> - ikvmc.exe -out:javatest.exe -target:exe -sharedclassloader
>> JavaTestModule.jar
>> - ikvmc.exe -out:javatest.exe -target:exe -sharedclassloader -
>> classloader:ikvm.runtime.ClassPathAssemblyClassLoader JavaTestModule.jar
>> -ikvmc.exe -out:javatest.exe -target:exe -
>> classloader:ikvm.runtime.ClassPathAssemblyClassLoader JavaTestModule.jar
>> 
>> alsways the same result -> "Java compiler not found!".
>> 
>> Can anyone help me with this problem?
>> 
>> Thanks in advance!
>> 
>> Martin
>> --
>> View this message in context: http://old.nabble.com/Problems-using-
>> ToolProvider.getSystemJavaCompiler-in-IKVM-converted-Assembly-
>> tp35169709p35169709.html
>> Sent from the IKVM .NET - Dev mailing list archive at Nabble.com.
>> 
>> 
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> 
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