debian/changelog

+visualvm (1.4.2-2) unstable; urgency=medium
+
+  * Team upload.
+  * Tighten the dependency on default-jdk. We only support Java 11 in Buster.
+
+ -- Markus Koschany <apo@debian.org>  Wed, 30 Jan 2019 13:31:56 +0100
+
 visualvm (1.4.2-1) unstable; urgency=medium
 
   * Team upload.

debian/control

@@ -21,7 +21,7 @@ Homepage: https://visualvm.github.io
 Package: visualvm
 Architecture: all
 Depends:
- default-jdk | java8-sdk,
+ default-jdk (>= 2:1.11) | java11-sdk,
  libnb-platform18-java (>= 10.0),
  libvisualvm-jni,
  ${misc:Depends}

debian/patches/03-launcher.patch

@@ -26,14 +26,14 @@ index e9a2715..418efe8 100644
  
 +ARCH=`dpkg --print-architecture`
 +visualvm_jdkhome=
-+for j in /usr/lib/jvm/java-7-openjdk-$ARCH /usr/lib/jvm/java-8-openjdk-$ARCH /usr/lib/jvm/default-java; do
++for j in /usr/lib/jvm/java-11-openjdk-$ARCH /usr/lib/jvm/default-java; do
 +    if [ -x $j/bin/javac ]; then
 +       visualvm_jdkhome=$j
 +       break
 +    fi
 +done
 +if [ -z "$visualvm_jdkhome" ]; then
-+    echo >&2 "No jdkhome found"
++    echo >&2 "Version of OpenJDK is not supported. Please use the default-jdk."
 +    exit 1
 +fi
 +