update a few dependency versions, closes mitreid-connect#1145

Author: jricher

openid-connect-server/pom.xml

@@ -51,6 +51,10 @@
 <artifactId>org.eclipse.persistence.core</artifactId>
 </dependency>
 
+<dependency>
+<groupId>org.apache.commons</groupId>
+<artifactId>commons-io</artifactId>
+</dependency>
 </dependencies>
 <description>OpenID Connect server libraries for Spring and Spring Security.</description>
 <url />

pom.xml

@@ -521,17 +521,17 @@
 <dependency>
 <groupId>com.google.guava</groupId>
 <artifactId>guava</artifactId>
-<version>18.0</version>
+<version>20.0</version>
 </dependency>
 <dependency>
 <groupId>com.google.code.gson</groupId>
 <artifactId>gson</artifactId>
-<version>2.3.1</version>
+<version>2.8.0</version>
 </dependency>
 <dependency>
 <groupId>org.apache.httpcomponents</groupId>
 <artifactId>httpclient</artifactId>
-<version>4.3.6</version>
+<version>4.5.2</version>
 <exclusions>
 <exclusion>
 <groupId>commons-logging</groupId>
@@ -542,7 +542,7 @@
 <dependency>
 <groupId>com.nimbusds</groupId>
 <artifactId>nimbus-jose-jwt</artifactId>
-<version>4.3</version>
+<version>4.33</version>
 </dependency>
 <dependency>
 <groupId>org.bouncycastle</groupId>
@@ -554,6 +554,11 @@
 <artifactId>org.eclipse.persistence.core</artifactId>
 <version>2.5.1</version>
 </dependency>
+<dependency>
+<groupId>org.apache.commons</groupId>
+<artifactId>commons-io</artifactId>
+<version>1.3.2</version>
+</dependency>
 </dependencies>
 </dependencyManagement>