diff -Nru libsvm-3.24+ds/debian/changelog libsvm-3.24+ds/debian/changelog
--- libsvm-3.24+ds/debian/changelog	2020-10-21 19:22:16.000000000 +0000
+++ libsvm-3.24+ds/debian/changelog	2024-02-22 03:33:36.000000000 +0000
@@ -1,3 +1,18 @@
+libsvm (3.24+ds-6ubuntu2) noble; urgency=medium
+
+  * d/control: add java-common to Build-Depends to resolve build
+    failure on platforms other than amd64.
+
+ -- Vladimir Petko <vladimir.petko@canonical.com>  Thu, 22 Feb 2024 16:33:36 +1300
+
+libsvm (3.24+ds-6ubuntu1) noble; urgency=medium
+
+  * d/rules, d/target-source.patch: use java_compat_level variable
+    provided by java-common to adjust -source/-target level to the
+    minimum required by the default Java (LP: #2054242).
+
+ -- Vladimir Petko <vladimir.petko@canonical.com>  Mon, 19 Feb 2024 10:34:10 +1300
+
 libsvm (3.24+ds-6) unstable; urgency=medium
 
   * d/test/control: Add python3-all to python-simple's Depends:
diff -Nru libsvm-3.24+ds/debian/control libsvm-3.24+ds/debian/control
--- libsvm-3.24+ds/debian/control	2020-10-21 19:21:50.000000000 +0000
+++ libsvm-3.24+ds/debian/control	2024-02-22 03:33:36.000000000 +0000
@@ -1,7 +1,8 @@
 Source: libsvm
 Section: devel
 Priority: optional
-Maintainer: Debian Science Maintainers <debian-science-maintainers@lists.alioth.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Debian Science Maintainers <debian-science-maintainers@lists.alioth.debian.org>
 Uploaders:
     Chen-Tse Tsai <ctse.tsai@gmail.com>,
     Christian Kastner <ckk@debian.org>,
@@ -11,6 +12,7 @@
 	libtool,
 	python3-all:native,
 	dh-python,
+	java-common,
 Build-Depends-Indep:
 	default-jdk
 Rules-Requires-Root: no
diff -Nru libsvm-3.24+ds/debian/patches/target-source.patch libsvm-3.24+ds/debian/patches/target-source.patch
--- libsvm-3.24+ds/debian/patches/target-source.patch	2020-10-21 19:15:37.000000000 +0000
+++ libsvm-3.24+ds/debian/patches/target-source.patch	2024-02-18 21:25:46.000000000 +0000
@@ -8,7 +8,14 @@
 
 --- a/java/Makefile
 +++ b/java/Makefile
-@@ -11,7 +11,7 @@ JAVAC = javac
+@@ -5,13 +5,13 @@
+ 		svm_train.class svm_predict.class svm_toy.class svm_scale.class
+ 
+ #JAVAC = jikes
+-JAVAC_FLAGS = -target 1.7 -source 1.7
++JAVAC_FLAGS = -target $(JAVA_COMPAT_LEVEL) -source $(JAVA_COMPAT_LEVEL)
+ JAVAC = javac
+ # JAVAC_FLAGS =
  export CLASSPATH := .:$(CLASSPATH)
  
  all: $(FILES)
diff -Nru libsvm-3.24+ds/debian/rules libsvm-3.24+ds/debian/rules
--- libsvm-3.24+ds/debian/rules	2020-10-21 19:15:37.000000000 +0000
+++ libsvm-3.24+ds/debian/rules	2024-02-18 21:24:50.000000000 +0000
@@ -3,6 +3,7 @@
 
 # Uncomment this to turn on verbose mode.
 #export DH_VERBOSE=1
+include /usr/share/java/java_defaults.mk
 
 # For DEB_VERSION_UPSTREAM
 include /usr/share/dpkg/pkg-info.mk
@@ -53,7 +54,7 @@
 
 override_dh_auto_build-indep:
 	dh_auto_build -i
-	$(MAKE) -C java
+	$(MAKE) JAVA_COMPAT_LEVEL=$(java_compat_level) -C java
 
 override_dh_auto_install:
 	dh_auto_install -- libdir=/usr/lib/$(DEB_HOST_MULTIARCH)/