#102 fix NullPointerException when searching for Transient annotation

graphql-jpa-query-schema/src/main/java/com/introproventures/graphql/jpa/query/schema/impl/IntrospectionUtils.java

@@ -84,6 +84,7 @@ public boolean isAnnotationPresent(Class<? extends Annotation> annotation) {
     	            					  .isAnnotationPresent(annotation);
 
     	        } catch (NoSuchFieldException e) {
+    	        	if(delegate.getReadMethod() == null) return false;
     				answer = delegate.getReadMethod()
     								  .isAnnotationPresent(annotation);
     	        }

graphql-jpa-query-schema/src/test/java/com/introproventures/graphql/jpa/query/schema/StarwarsSchemaBuildTest.java

@@ -182,5 +182,14 @@ public void correctlyDerivesSchemaDescriptionsFromGivenEntities() {
                 .describedAs( "Ensure that CodeList.parent has the expected description")
                 .isEqualTo("The CodeList's parent CodeList");
     }
+
+    @Test
+    public void testBuildSchema(){
+        //given
+        GraphQLSchema schema = builder.build();
+
+        //then
+        assertThat(schema).isNotNull();
+    }
 
 }

graphql-jpa-query-schema/src/test/java/com/introproventures/graphql/jpa/query/schema/impl/IntrospectionUtilsTest.java

@@ -50,6 +50,13 @@ public void testNotTransientFields() throws Exception {
         assertThat(IntrospectionUtils.isTransient(entity, "info")).isFalse();
         assertThat(IntrospectionUtils.isTransient(entity, "title")).isFalse();
     }
-
-
+
+    @Test
+    public void testByPassSetMethod() throws Exception {
+        // given
+        Class<CalculatedEntity> entity = CalculatedEntity.class;
+
+        // then
+        assertThat(IntrospectionUtils.isTransient(entity,"something")).isFalse();
+    }
 }

graphql-jpa-query-schema/src/test/java/com/introproventures/graphql/jpa/query/schema/model/calculated/CalculatedEntity.java

@@ -45,4 +45,6 @@ public boolean isCustomLogic() {
     public String getHideFieldFunction() {
         return "getHideFieldFunction";
     }
+
+    public void setSomething(int a){}
 }