Examples with Java org.apache.tools.ant.taskdefs.Java used on opensource projects

Example 16 with Java

use of org.apache.tools.ant.taskdefs.Java in project elephant-bird by twitter.

the class TestProtobufWritable method testStableHashcodeAcrossJVMs.

@Test
public void testStableHashcodeAcrossJVMs() throws IOException {
    int expectedHashCode = referenceAbWritable.hashCode();
    Java otherJvm = new Java();
    otherJvm.setNewenvironment(true);
    otherJvm.setFork(true);
    otherJvm.setProject(new Project());
    otherJvm.setClassname(OtherJvmClass.class.getName());
    for (Map.Entry<String, String> entry : System.getenv().entrySet()) {
        Environment.Variable var = new Environment.Variable();
        var.setKey(entry.getKey());
        var.setValue(entry.getValue());
        otherJvm.addEnv(var);
    }
    for (String prop : System.getProperties().stringPropertyNames()) {
        String propValue = System.getProperty(prop);
        Environment.Variable var = new Environment.Variable();
        var.setKey(prop);
        var.setValue(propValue);
        otherJvm.addSysproperty(var);
    }
    otherJvm.setDir(new File(System.getProperty("java.io.tmpdir")));
    File tmpOut = File.createTempFile("otherJvm", "txt");
    otherJvm.setArgs(tmpOut.getAbsolutePath());
    otherJvm.init();
    otherJvm.executeJava();
    DataInputStream is = new DataInputStream(new FileInputStream(tmpOut));
    assertEquals(expectedHashCode, is.readInt());
    is.close();
}