Fix issues in common for new sonar rules

Addressed issues reported due to updates to the sonar rules:
- invoke only one method in a junit lambda
- complete the assertion
- add DOCTYPE to html

Issue-ID: POLICY-2650
Change-Id: Ib8b8a2e4736cc23849c0f7aef972ffa3365a3e00
Signed-off-by: Jim Hahn <jrh3@att.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/utils/src/test/java/org/onap/policy/common/utils/coder/StandardCoderTest.java b/utils/src/test/java/org/onap/policy/common/utils/coder/StandardCoderTest.java
index ad4382ce..a468f0b4 100644
--- a/utils/src/test/java/org/onap/policy/common/utils/coder/StandardCoderTest.java
+++ b/utils/src/test/java/org/onap/policy/common/utils/coder/StandardCoderTest.java
@@ -31,6 +31,7 @@ import static org.mockito.Mockito.when;
 
 import com.google.gson.JsonElement;
 import com.google.gson.JsonParseException;
+import com.google.gson.JsonSyntaxException;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
@@ -319,7 +320,9 @@ public class StandardCoderTest {
         assertEquals(json, coder.toJson(sco));
 
         // invalid json -> exception
-        assertThatThrownBy(() -> coder.fromJson(new StringReader("["), StandardCoderObject.class));
+        StringReader rdr = new StringReader("[");
+        assertThatThrownBy(() -> coder.fromJson(rdr, StandardCoderObject.class))
+                        .isInstanceOf(JsonSyntaxException.class);
     }
 
     @Test