test that we get the expected reference on java1.2, by a bit of convolution. (i.e that we dont get the 1.1 compatible ref)

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@273625 13f79535-47bb-0310-9956-ffa450edef68

src/testcases/org/apache/tools/ant/util/ReferencesTest.java

@@ -0,0 +1,83 @@
+/*
+ *  The Apache Software License, Version 1.1
+ *
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+ *  reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions
+ *  are met:
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+ *
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+ *
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+ *  any, must include the following acknowlegement:
+ *  "This product includes software developed by the
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+ *  Alternately, this acknowlegement may appear in the software itself,
+ *  if and wherever such third-party acknowlegements normally appear.
+ *
+ *  4. The names "The Jakarta Project", "Ant", and "Apache Software
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+ *
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+ *  ====================================================================
+ *
+ *  This software consists of voluntary contributions made by many
+ *  individuals on behalf of the Apache Software Foundation.  For more
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+ */
+
+package org.apache.tools.ant.util;
+
+import junit.framework.TestCase;
+
+
+/**
+ * this test just makes sure that we really do create weak references
+ * on java1.2+, and is written to not import the WeakishReference12 class
+ * because then we'd have to make the class conditional on java1.2+.
+ */
+public class ReferencesTest extends TestCase{
+
+    public ReferencesTest(String s) {
+        super(s);
+    }
+
+    /**
+     * look at the type of a reference we have created
+     */
+    public static void testReferencesAreSoft() {
+        boolean isJava11=JavaEnvUtils.isJavaVersion(JavaEnvUtils.JAVA_1_1);
+        WeakishReference reference = WeakishReference.createReference(new Object());
+        if (reference instanceof WeakishReference.HardReference
+            && !isJava11) {
+            fail("We should be creating soft references in this version of Java");
+        }
+    }
+
+}