auth0 · lbalmaceda · Apr 12, 2017 · Apr 7, 2017 · Apr 11, 2017
@@ -102,7 +102,7 @@ public <T> T as(Class<T> tClazz) throws JWTDecodeException {
 
     @Override
     public boolean isNull() {
-        return !(data.isArray() || data.canConvertToLong() || data.isTextual() || data.isNumber() || data.isBoolean());
+        return false;
     }
 
     /**

@@ -10,6 +10,11 @@
  */
 public interface Claim {
 
+    /**
+     * Whether this Claim has a null value or not.
+     *
+     * @return whether this Claim has a null value or not.
+     */
     boolean isNull();
 
     /**

@@ -192,11 +192,11 @@ public void shouldGetValidClaim() throws Exception {
     }
 
     @Test
-    public void shouldGetNullClaimIfClaimValueIsNull() throws Exception {
+    public void shouldNotGetNullClaimIfClaimIsEmptyObject() throws Exception {
         DecodedJWT jwt = JWTDecoder.decode("eyJhbGciOiJIUzI1NiJ9.eyJvYmplY3QiOnt9fQ.d3nUeeL_69QsrHL0ZWij612LHEQxD8EZg1rNoY3a4aI");
         assertThat(jwt, is(notNullValue()));
         assertThat(jwt.getClaim("object"), is(notNullValue()));
-        assertThat(jwt.getClaim("object").isNull(), is(true));
+        assertThat(jwt.getClaim("object").isNull(), is(false));
     }
 
     @Test

@@ -12,10 +12,7 @@
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.Date;
-import java.util.Map;
+import java.util.*;
 
 import static com.auth0.jwt.impl.JWTParser.getDefaultObjectMapper;
 import static com.auth0.jwt.impl.JsonNodeClaim.claimFromNode;
@@ -268,12 +265,82 @@ public void shouldReturnBaseClaimWhenParsingNullValue() throws Exception {
     }
 
     @Test
-    public void shouldReturnValidButNullClaimIfTreeIsEmpty() throws Exception {
+    public void shouldReturnNonNullClaimWhenParsingObject() throws Exception {
         JsonNode value = mapper.valueToTree(new Object());
         Claim claim = claimFromNode(value);
 
         assertThat(claim, is(notNullValue()));
         assertThat(claim, is(instanceOf(JsonNodeClaim.class)));
-        assertThat(claim.isNull(), is(true));
+        assertThat(claim.isNull(), is(false));
+    }
+
+    @Test
+    public void shouldReturnNonNullClaimWhenParsingArray() throws Exception {
+        JsonNode value = mapper.valueToTree(new String[]{});
+        Claim claim = claimFromNode(value);
+
+        assertThat(claim, is(notNullValue()));
+        assertThat(claim, is(instanceOf(JsonNodeClaim.class)));
+        assertThat(claim.isNull(), is(false));
+    }
+
+    @Test
+    public void shouldReturnNonNullClaimWhenParsingList() throws Exception {
+        JsonNode value = mapper.valueToTree(new ArrayList<String>());
+        Claim claim = claimFromNode(value);
+
+        assertThat(claim, is(notNullValue()));
+        assertThat(claim, is(instanceOf(JsonNodeClaim.class)));
+        assertThat(claim.isNull(), is(false));
+    }
+
+    @Test
+    public void shouldReturnNonNullClaimWhenParsingStringValue() throws Exception {
+        JsonNode value = mapper.valueToTree("");
+        Claim claim = claimFromNode(value);
+
+        assertThat(claim, is(notNullValue()));
+        assertThat(claim, is(instanceOf(JsonNodeClaim.class)));
+        assertThat(claim.isNull(), is(false));
+    }
+
+    @Test
+    public void shouldReturnNonNullClaimWhenParsingIntValue() throws Exception {
+        JsonNode value = mapper.valueToTree(Integer.MAX_VALUE);
+        Claim claim = claimFromNode(value);
+
+        assertThat(claim, is(notNullValue()));
+        assertThat(claim, is(instanceOf(JsonNodeClaim.class)));
+        assertThat(claim.isNull(), is(false));
+    }
+
+    @Test
+    public void shouldReturnNonNullClaimWhenParsingDoubleValue() throws Exception {
+        JsonNode value = mapper.valueToTree(Double.MAX_VALUE);
+        Claim claim = claimFromNode(value);
+
+        assertThat(claim, is(notNullValue()));
+        assertThat(claim, is(instanceOf(JsonNodeClaim.class)));
+        assertThat(claim.isNull(), is(false));
+    }
+
+    @Test
+    public void shouldReturnNonNullClaimWhenParsingDateValue() throws Exception {
+        JsonNode value = mapper.valueToTree(new Date());
+        Claim claim = claimFromNode(value);
+
+        assertThat(claim, is(notNullValue()));
+        assertThat(claim, is(instanceOf(JsonNodeClaim.class)));
+        assertThat(claim.isNull(), is(false));
+    }
+
+    @Test
+    public void shouldReturnNonNullClaimWhenParsingBooleanValue() throws Exception {
+        JsonNode value = mapper.valueToTree(Boolean.TRUE);
+        Claim claim = claimFromNode(value);
+
+        assertThat(claim, is(notNullValue()));
+        assertThat(claim, is(instanceOf(JsonNodeClaim.class)));
+        assertThat(claim.isNull(), is(false));
     }
 }