Fix compatibility with OpenJDK 8

Related: rhbz#2054990

log4j.spec

@@ -2,7 +2,7 @@
 
 Name:           log4j
 Version:        2.17.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Java logging package
 BuildArch:      noarch
 License:        ASL 2.0
@@ -198,6 +198,9 @@ rm -r log4j-core/src/main/java/org/apache/logging/log4j/core/appender/mom/kafka
 %pom_remove_dep -r :slf4j-ext
 %pom_remove_parent
 
+# Make compiled code compatible with OpenJDK 8
+%pom_xpath_inject 'pom:plugin[pom:artifactId="maven-compiler-plugin"]/pom:configuration' "<release>8</release>"
+
 %if %{with jp_minimal}
 %pom_disable_module %{name}-taglib
 %pom_disable_module %{name}-jmx-gui
@@ -286,6 +289,9 @@ rm -r log4j-1.2-api/src/main/java/org/apache/log4j/or/jms
 
 
 %changelog
+* Wed Feb 23 2022 Mikolaj Izdebski <mizdebsk@redhat.com> - 2.17.1-3
+- Fix compatibility with OpenJDK 8
+
 * Mon Feb 21 2022 Mikolaj Izdebski <mizdebsk@redhat.com> - 2.17.1-2
 - Remove dependency on jackson
 

plans/smoke.fmf

@@ -1,8 +1,8 @@
 summary: Basic smoke test
 prepare:
   how: install
-  package: java-devel
+  package: java-1.8.0-openjdk-devel
 execute:
   script:
-    - javac -cp /usr/share/java/log4j/log4j-api.jar plans/Smoke.java
-    - java -cp /usr/share/java/log4j/log4j-api.jar:/usr/share/java/log4j/log4j-core.jar:plans Smoke
+    - /usr/lib/jvm/java-1.8.0-openjdk/bin/javac -cp /usr/share/java/log4j/log4j-api.jar plans/Smoke.java
+    - /usr/lib/jvm/java-1.8.0-openjdk/bin/java -cp /usr/share/java/log4j/log4j-api.jar:/usr/share/java/log4j/log4j-core.jar:plans Smoke