#924: Switch as Java8 as minimal version.

pom.xml

@@ -127,43 +127,6 @@ Contributors:
                 <test.exclusion.pattern>nothing</test.exclusion.pattern>
             </properties>
         </profile>
-        <profile>
-            <id>jdk8orGreater</id>
-            <activation>
-                <jdk>[1.8,)</jdk>
-            </activation>
-            <properties>
-                <javadoc.doclint>all,-missing</javadoc.doclint>
-            </properties>
-        </profile>
-        <profile>
-            <!-- This profile activate the usage of toolchain to compile using JDK 1.7-->
-            <id>useToolchain</id>
-            <properties>
-                <javadoc.doclint></javadoc.doclint>
-            </properties>
-            <build>
-                <plugins>
-                    <plugin>
-                        <artifactId>maven-toolchains-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <goals>
-                                    <goal>toolchain</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                        <configuration>
-                            <toolchains>
-                                <jdk>
-                                    <version>1.7</version>
-                                </jdk>
-                            </toolchains>
-                        </configuration>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
         <profile>
             <!-- Release nightly/snapshot build on eclipse nexus -->
             <id>release-nightly</id>
@@ -345,8 +308,8 @@ Contributors:
                     <version>3.8.1</version>
                     <configuration>
                         <encoding>UTF-8</encoding>
-                        <source>1.7</source>
-                        <target>1.7</target>
+                        <source>1.8</source>
+                        <target>1.8</target>
                         <debug>true</debug>
                         <optimize>true</optimize>
                         <showDeprecations>true</showDeprecations>
@@ -384,7 +347,7 @@ Contributors:
                     <configuration>
                         <excludePackageNames>org.eclipse.leshan.core.util</excludePackageNames>
                         <quiet>true</quiet>
-                        <doclint>${javadoc.doclint}</doclint>
+                        <doclint>all,-missing</doclint>
                         <failOnWarnings>true</failOnWarnings>
                     </configuration>
                 </plugin>