Add test with tokenImage as used in JavaCC

Author: owen-mc

java/ql/test/query-tests/security/CWE-532/TokenSequenceParserTest.java

@@ -0,0 +1,17 @@
+import org.apache.logging.log4j.Logger;
+
+interface TokenSequenceParserConstants {
+  /** Literal token values. */
+  String[] tokenImage = {
+    "<EOF>",
+  };
+}
+
+public class TokenSequenceParserTest implements TokenSequenceParserConstants {
+    void test(String password) {
+        Logger logger = null;
+
+        logger.info("When parsing found this: " + tokenImage[0]); // Safe
+    }
+
+}