fix: compile to java 8 as 1.7 is no longer supported in JDK 21

Author: cortlepp

modules/fastinfoset/pom.xml

@@ -196,7 +196,7 @@
                                 <!-- make the dirs -->
                                 <mkdir dir="${wsdl.output.base.dir}" />
                                 <echo>Compiling Service class</echo>
-                                <javac fork="true" destdir="target/test-classes" debug="on" source="1.7" target="1.7">
+                                <javac fork="true" destdir="target/test-classes" debug="on" source="8" target="8">
                                     <classpath refid="maven.dependency.classpath" />
                                     <classpath location="${compiled.classes.dir}" />
                                     <include name="**/*SimpleAddService.java" />

modules/integration/test-resources/jaxrs/archiveTestModule/build.xml

@@ -36,7 +36,7 @@
 
     <target name="compile" depends="init" unless="jars.uptodate">
         <mkdir dir="${build.classes}"/>
-        <javac fork="true" destdir="${build.classes}" debug="on" source="1.7" target="1.7">
+        <javac fork="true" destdir="${build.classes}" debug="on" source="8" target="8">
             <classpath refid="axis.test.classpath"/>
             <src path="${src}"/>
         </javac>

modules/integration/test-resources/jaxrs/pojoTestModule/build.xml

@@ -32,7 +32,7 @@
 
     <target name="compile" depends="init" unless="pojo.uptodate">
         <mkdir dir="${pojo.dir}"/>
-        <javac fork="true" destdir="${pojo.dir}" debug="on" source="1.7" target="1.7">
+        <javac fork="true" destdir="${pojo.dir}" debug="on" source="8" target="8">
             <classpath refid="axis.test.classpath"/>
             <src path="${src}"/>
         </javac>