[java] Add test case for #2738

pmd-java/src/test/java/net/sourceforge/pmd/lang/java/ast/ASTSwitchStatementTest.java

@@ -0,0 +1,21 @@
+/*
+ * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
+ */
+
+package net.sourceforge.pmd.lang.java.ast;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class ASTSwitchStatementTest extends BaseParserTest {
+
+    @Test
+    public void exhaustiveEnumSwitchWithDefault() {
+        ASTSwitchStatement switchStatement = getNodes(ASTSwitchStatement.class,
+                "import java.nio.file.AccessMode; class Foo { void bar(AccessMode m) {"
+                + "switch (m) { case READ: break; default: break; } } }")
+                .get(0);
+        Assert.assertFalse(switchStatement.isExhaustiveEnumSwitch()); // this should not throw a NPE...
+        Assert.assertTrue(switchStatement.hasDefaultCase());
+    }
+}