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From "Kevin Zhou (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-6218) [classlib][lang-management] java.lang.management.MemoryUsage.from(CompositeData cd) should throw IlegalArgumentException but not NullPointerException
Date Sun, 31 May 2009 03:20:07 GMT
[classlib][lang-management] java.lang.management.MemoryUsage.from(CompositeData cd) should
throw IlegalArgumentException but not NullPointerException
-----------------------------------------------------------------------------------------------------------------------------------------------------

                 Key: HARMONY-6218
                 URL: https://issues.apache.org/jira/browse/HARMONY-6218
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
    Affects Versions: 5.0M9
            Reporter: Kevin Zhou
             Fix For: 5.0M10


Given a test case [1], RI passes it while HARMONY fails and throws a java.lang.NullPointerException.
According to Java Spec, if the argument cd does not represent a MemoryUsage with the attributes
described below, it should throw a java.lang.IllegalArgumentException.

Attribute Name  	Type
init                           java.lang.Long
used                       java.lang.Long
committed             java.lang.Long
max                        java.lang.Long

[1] Test Case:
public void test_from() throws Exception {
    String[] names = { "init", "used", "committed" };
    Object[] values = { null, null, null };
    OpenType[] types = { SimpleType.LONG, SimpleType.LONG, SimpleType.LONG };
    CompositeType compositeType = getCompositeType(names, types);
    CompositeData data = new CompositeDataSupport(compositeType, names, values);
    try {
        MemoryUsage.from(data);
        fail("should throw IllegalArgumentException");
    } catch (IllegalArgumentException e) {
        // Expected
    }
}

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