Directly import JSR305 jar.

Closes #2385

Author: mp911de

pom.xml

@@ -83,6 +83,13 @@
 			<optional>true</optional>
 		</dependency>
 
+		<dependency>
+			<groupId>com.google.code.findbugs</groupId>
+			<artifactId>jsr305</artifactId>
+			<version>2.0.1</version>
+			<optional>true</optional>
+		</dependency>
+
 		<dependency>
 			<groupId>joda-time</groupId>
 			<artifactId>joda-time</artifactId>