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From "Mikhail Fursov" <mike.fur...@gmail.com>
Subject Re: [drlvm] “java.compiler” property
Date Fri, 13 Oct 2006 13:41:31 GMT
"none" is OK. But if you want a real JIT info the EM config file is the only
valid place to put it.

On 10/13/06, Alexei Zakharov <alexei.zakharov@gmail.com> wrote:
>
> Mikhail,
>
> Yes, but I think we should have it by default. Another problem is that
> we should return something even if we are in the interpreter mode.
> Since this property is *mandatory* for all configs. I suggest using
> something like "none" or etc.
>
> Regards,
>
> 2006/10/13, Mikhail Fursov <mike.fursov@gmail.com>:
> > The most simple fix: put it into all EM configuration files if you want
> it
> > to depend on JIT configuration is used.
> >
> >
> > On 10/13/06, Alexei Zakharov <alexei.zakharov@gmail.com> wrote:
> > >
> > > Hi all,
> > >
> > > I found that we have some problems with system properties in DRLVM. In
> > > the javadoc for java.lang.System class the particular list of
> > > mandatory properties that should be returned by the getProperties()
> > > method is described. However, DRLVM does not provide the value for the
> > > mandatory "java.compiler" property. This leads to some problems
> > > including the test failure from the java.lang.management test suite
> > > (HY-1407). This problem was mentioned by Andrey Yakushev [1].  Below
> > > is the small test that checks all mandatory properties:
> > >
> > > <--
> > > import java.util.*;
> > >
> > > public class TestVMProps {
> > >
> > >     static String[] mandatoryProps = new String[] {
> > >             "java.version",
> > >             "java.vendor",
> > >             "java.vendor.url",
> > >             "java.home",
> > >             "java.vm.specification.version",
> > >             "java.vm.specification.vendor",
> > >             "java.vm.specification.name",
> > >             "java.vm.version",
> > >             "java.vm.vendor",
> > >             "java.vm.name",
> > >             "java.specification.version",
> > >             "java.specification.vendor",
> > >             "java.specification.name",
> > >             "java.class.version",
> > >             "java.class.path",
> > >             "java.library.path",
> > >             "java.io.tmpdir",
> > >             "java.compiler",
> > >             "java.ext.dirs",
> > >             "os.name",
> > >             "os.arch",
> > >             "os.version",
> > >             "file.separator",
> > >             "path.separator",
> > >             "line.separator",
> > >             "user.name",
> > >             "user.home",
> > >             "user.dir"
> > >     };
> > >
> > >     public static void main(String argv[]) {
> > >          Vector<String> missed = new Vector<String>();
> > >          Properties props = System.getProperties();
> > >
> > >          for (String mandProp: mandatoryProps) {
> > >              boolean found = false;
> > >              Enumeration<String> propEnum = (Enumeration<String>)
> > >                      props.propertyNames();
> > >
> > >              while (propEnum.hasMoreElements()) {
> > >                  String prop = propEnum.nextElement();
> > >
> > >                  if (mandProp.equals(prop)) {
> > >                      found = true;
> > >                      break;
> > >                  }
> > >              }
> > >
> > >              if (!found) {
> > >                  missed.add(mandProp);
> > >              }
> > >          }
> > >
> > >          System.out.println("Number of missed props: " + missed.size
> ());
> > >          System.out.println("Missed props: " + missed);
> > >     }
> > > }
> > > <--
> > >
> > > If invoked on DRLVM:
> > >
> C:\mydoc\projects\tests>C:\Java\harmony-hdk-r450941\jdk\jre\bin\java.exe
> > > TestVMProps
> > > Number of missed props: 1
> > > Missed props: [java.compiler]
> > >
> > > On IBM VME:
> > > C:\mydoc\projects\tests>C:\Java\harmony-bin\bin\java.exe TestVMProps
> > > Number of missed props: 0
> > > Missed props: []
> > >
> > > On RI:
> > > C:\mydoc\projects\tests>C:\Java\jdk1.5.0\bin\java.exe TestVMProps
> > > Number of missed props: 1
> > > Missed props: [java.compiler]
> > >
> > > You may notice that RI also does not provide the value for
> > > "java.compiler".  BTW, we have a test in the DRLVM test suite that
> > > should check all mandatory properties –
> > > java.lang.SystemExtensionTest.test_getProperty_Str(). But it seems the
> > > author of the test makes a muddle of logical operators – puts OR
> > > instead of AND. So the test now checks if at least one of mandatory
> > > property is set.
> > >
> > > IMHO we should return something for the "java.compiler" property name.
> > > Any thoughts?
> > >
> > > [1]
> > >
> http://mail-archives.apache.org/mod_mbox/incubator-harmony-dev/200610.mbox/%3c3c7e1c080610050500i60a414bgfd2df69003e4e429@mail.gmail.com%3e
> > > (problem 2)
>
>
> --
> Alexei Zakharov,
> Intel Enterprise Solution Software Division
>
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>


-- 
Mikhail Fursov

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