Set a timeout of 120s on (individual) unit tests

nbproject/build-impl.xml

@@ -187,7 +187,7 @@ is divided into following sections:
             <attribute default="${excludes}" name="excludes"/>
             <attribute default="**" name="testincludes"/>
             <sequential>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" showoutput="true">
+                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" showoutput="true" timeout="120000">
                     <classpath>
                         <pathelement path="${clover.jar}"/>
                     </classpath>
@@ -647,4 +647,4 @@ is divided into following sections:
         <!-- You can override this target in the ../build.xml file. -->
     </target>
     <target depends="init,deps-clean,-do-clean,-post-clean" description="Clean build products." name="clean"/>
-</project>
+</project>