bean parser fails on empty parameters fix #550

coverage-report/src/test/java/org/jooby/issues/Issue550.java

@@ -0,0 +1,26 @@
+package org.jooby.issues;
+
+import org.jooby.test.ServerFeature;
+import org.junit.Test;
+
+public class Issue550 extends ServerFeature {
+
+  public static class Person {
+    public String name;
+  }
+
+  {
+    get("/550", req -> {
+      return req.params(Person.class).name;
+    });
+  }
+
+  @Test
+  public void shouldIgnoreEmptyParams() throws Exception {
+    request()
+        .get("/550?name=pedro&person.sync")
+        .expect("pedro")
+        .expect(200);
+  }
+
+}

jooby/src/main/java/org/jooby/internal/parser/bean/BeanPlan.java

@@ -155,8 +155,10 @@ private List<BeanPath> compile(final Iterator<String> it, final TypeLiteral bean
             }
             cpath = getter;
           }
-          chain.add(cpath);
-          ittype = TypeLiteral.get(cpath.type());
+          if (cpath != null) {
+            chain.add(cpath);
+            ittype = TypeLiteral.get(cpath.type());
+          }
         }
 
         // set path