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From "Mikhail Fursov" <mike.fur...@gmail.com>
Subject Re: [drlvm] “java.compiler” property
Date Fri, 13 Oct 2006 13:07:56 GMT
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)
>
> Thanks,
>
> --
> Alexei Zakharov,
> Intel Enterprise Solutions Software Division
>
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>


-- 
Mikhail Fursov

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