diff --git a/jans-orm/filter/pom.xml b/jans-orm/filter/pom.xml
index 4ce343a4f66..ccabd0f6587 100644
--- a/jans-orm/filter/pom.xml
+++ b/jans-orm/filter/pom.xml
@@ -11,11 +11,28 @@
 		<version>1.0.2-SNAPSHOT</version>
 	</parent>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <skipTests>false</skipTests>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
 	<dependencies>
 		<dependency>
 			<groupId>io.jans</groupId>
 			<artifactId>jans-orm-util</artifactId>
 		</dependency>
+        <dependency>
+            <groupId>org.testng</groupId>
+            <artifactId>testng</artifactId>
+            <scope>test</scope>
+        </dependency>
 	</dependencies>
 
 </project>
\ No newline at end of file
diff --git a/jans-orm/filter/src/test/java/io/jans/orm/search/filter/FileProcessorTest.java b/jans-orm/filter/src/test/java/io/jans/orm/search/filter/FileProcessorTest.java
new file mode 100644
index 00000000000..2bb8afbbc32
--- /dev/null
+++ b/jans-orm/filter/src/test/java/io/jans/orm/search/filter/FileProcessorTest.java
@@ -0,0 +1,19 @@
+package io.jans.orm.search.filter;
+
+import io.jans.orm.util.StringHelper;
+import org.testng.annotations.Test;
+
+import static org.testng.Assert.assertNotNull;
+
+/**
+ * @author Yuriy Z
+ */
+public class FileProcessorTest {
+
+    @Test
+    public void simpleFilter_whenRun_shouldProduceFilter() {
+        final Filter filter = Filter.createEqualityFilter(Filter.createLowercaseFilter("uid"), StringHelper.toLowerCase("1"));
+        FilterProcessor filterProcessor = new FilterProcessor();
+        assertNotNull(filterProcessor.excludeFilter(filter, FilterProcessor.OBJECT_CLASS_EQUALITY_FILTER, FilterProcessor.OBJECT_CLASS_PRESENCE_FILTER));
+    }
+}
diff --git a/jans-orm/filter/src/test/resources/testng.xml b/jans-orm/filter/src/test/resources/testng.xml
new file mode 100644
index 00000000000..1c2e0c64fd1
--- /dev/null
+++ b/jans-orm/filter/src/test/resources/testng.xml
@@ -0,0 +1,11 @@
+<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
+
+<suite name="ormFilter" parallel="false">
+
+    <test name="UnitTests" enabled="true">
+        <classes>
+            <class name="io.jans.orm.search.filter.FileProcessorTest"/>
+        </classes>
+    </test>
+
+</suite>
\ No newline at end of file
diff --git a/jans-orm/pom.xml b/jans-orm/pom.xml
index ab847b1525f..8aeb0033ac6 100644
--- a/jans-orm/pom.xml
+++ b/jans-orm/pom.xml
@@ -128,6 +128,19 @@
 					<artifactId>jacoco-maven-plugin</artifactId>
 					<version>${jacoco.version}</version>
 				</plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-surefire-plugin</artifactId>
+                    <version>2.19.1</version>
+                    <configuration>
+                        <argLine>@{argLine}</argLine>
+                        <failIfNoTests>false</failIfNoTests>
+                        <trimStackTrace>false</trimStackTrace>
+                        <suiteXmlFiles>
+                            <suiteXmlFile>target/test-classes/testng.xml</suiteXmlFile>
+                        </suiteXmlFiles>
+                    </configuration>
+                </plugin>
 			</plugins>
 		</pluginManagement>
 	</build>
diff --git a/jans-orm/util/pom.xml b/jans-orm/util/pom.xml
index 1cbd8f45da1..af8aa9c3bb3 100644
--- a/jans-orm/util/pom.xml
+++ b/jans-orm/util/pom.xml
@@ -11,6 +11,18 @@
 		<version>1.0.2-SNAPSHOT</version>
 	</parent>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <skipTests>false</skipTests>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
 	<dependencies>
 		<!-- Logging -->
 		<dependency>
@@ -26,6 +38,12 @@
 		    <groupId>org.apache.commons</groupId>
 		    <artifactId>commons-text</artifactId>
 		</dependency>
+
+        <dependency>
+            <groupId>org.testng</groupId>
+            <artifactId>testng</artifactId>
+            <scope>test</scope>
+        </dependency>
 	</dependencies>
 
 </project>
\ No newline at end of file
diff --git a/jans-orm/util/src/main/java/io/jans/orm/util/StringHelper.java b/jans-orm/util/src/main/java/io/jans/orm/util/StringHelper.java
index 7397bfa1d4d..1ac8a59ad72 100644
--- a/jans-orm/util/src/main/java/io/jans/orm/util/StringHelper.java
+++ b/jans-orm/util/src/main/java/io/jans/orm/util/StringHelper.java
@@ -6,6 +6,8 @@
 
 package io.jans.orm.util;
 
+import org.apache.commons.text.StringEscapeUtils;
+
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.nio.charset.StandardCharsets;
@@ -13,9 +15,6 @@
 import java.util.Map;
 import java.util.StringTokenizer;
 
-import org.apache.commons.lang.NotImplementedException;
-import org.apache.commons.text.StringEscapeUtils;
-
 public final class StringHelper {
 
     public static final byte[] EMPTY_BYTES = new byte[0];
@@ -349,10 +348,6 @@ public static boolean toBoolean(Boolean value, boolean defaultValue) {
     }
 
     public static boolean isEmptyString(Object string) {
-    	if (string == null) {
-    		return false;
-    	}
-
         return !(string instanceof String) || isEmpty((String) string);
     }
 
diff --git a/jans-orm/util/src/test/java/io/jans/orm/util/StringHelperTest.java b/jans-orm/util/src/test/java/io/jans/orm/util/StringHelperTest.java
new file mode 100644
index 00000000000..e36ac345f30
--- /dev/null
+++ b/jans-orm/util/src/test/java/io/jans/orm/util/StringHelperTest.java
@@ -0,0 +1,28 @@
+package io.jans.orm.util;
+
+import org.testng.annotations.Test;
+
+import static org.testng.Assert.assertTrue;
+import static org.testng.Assert.assertFalse;
+
+/**
+ * @author Yuriy Z
+ */
+public class StringHelperTest {
+
+    @Test
+    public void isEmptyString_forNull_shouldReturnTrue() {
+        assertTrue(StringHelper.isEmptyString(null));
+    }
+
+    @Test
+    public void isEmptyString_forEmptyString_shouldReturnTrue() {
+        assertTrue(StringHelper.isEmptyString(""));
+    }
+
+    @Test
+    public void isEmptyString_forNonEmptyString_shouldReturnFalse() {
+        assertFalse(StringHelper.isEmptyString("df"));
+    }
+
+}
diff --git a/jans-orm/util/src/test/resources/testng.xml b/jans-orm/util/src/test/resources/testng.xml
new file mode 100644
index 00000000000..ca16cae6ef2
--- /dev/null
+++ b/jans-orm/util/src/test/resources/testng.xml
@@ -0,0 +1,11 @@
+<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
+
+<suite name="ormUtil" parallel="false">
+
+    <test name="UnitTests" enabled="true">
+        <classes>
+            <class name="io.jans.orm.util.StringHelperTest"/>
+        </classes>
+    </test>
+
+</suite>
\ No newline at end of file