Replace a now-defunct maven repo with a working one

.travis.yml

@@ -9,5 +9,9 @@ matrix:
   include:
   - jdk: openjdk8
   - jdk: oraclejdk9
+    before_install:
+        # The OpenJDK9's CA bundle is outdated, so we're using the system's ones.
+        - rm "${JAVA_HOME}/lib/security/cacerts"
+        - ln -s /etc/ssl/certs/java/cacerts "${JAVA_HOME}/lib/security/cacerts"
   - jdk: openjdk11
   - jdk: openjdk12

pom.xml

@@ -27,20 +27,17 @@
             <name>Local Repository</name>
             <url>file://${project.basedir}/../repo</url>
         </repository>
-        <repository>
-            <id>java_net</id>
-            <name>download.java.net</name>
-            <url>https://download.java.net/maven/2/</url>
-        </repository>
-        <repository>
-            <id>teleal</id>
-            <name>teleal</name>
-            <url>http://teleal.org/m2</url>
-        </repository>
         <repository>
             <id>jaudiotagger-repository</id>
             <url>https://dl.bintray.com/ijabz/maven</url>
         </repository>
+        <repository>
+          <id>4thline-repo</id>
+          <url>http://4thline.org/m2</url>
+          <snapshots>
+              <enabled>false</enabled>
+          </snapshots>
+      </repository>
     </repositories>
 
     <pluginRepositories>