adding missing file

src/soot/tagkit/TryCatchTag.java

@@ -0,0 +1,30 @@
+package soot.tagkit;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class TryCatchTag implements soot.tagkit.Tag {
+
+	public static final String NAME = "TryCatchTag"; 
+
+	protected Map<soot.Unit,soot.Unit> handlerUnitToFallThroughUnit = new HashMap<soot.Unit, soot.Unit>();
+
+	public void register(soot.Unit handler, soot.Unit fallThrough) {
+		handlerUnitToFallThroughUnit.put(handler, fallThrough);
+	}
+
+	public soot.Unit getFallThroughUnitOf(soot.Unit handlerUnit) {
+		return handlerUnitToFallThroughUnit.get(handlerUnit);
+	}
+
+	@Override
+	public String getName() {
+		return NAME;
+	}
+
+	@Override
+	public byte[] getValue() throws AttributeValueException {
+		throw new UnsupportedOperationException();
+	}
+
+}