Rebuilt for java-25-openjdk as preffered jdk

https://fedoraproject.org/wiki/Changes/Java25AndNoMoreSystemJdk
Note, that since f43, you should be always explicit on what jdk to use.
This commit should do exactly that.

.gitignore

@@ -0,0 +1,2 @@
+/fernflower-183.5153.8.tar.gz
+/fernflower-211.7442.40.tar.gz

README.md

@@ -1,3 +1,8 @@
 # fernflower
 
-The fernflower package
+The fernflower package
+
+JIdea's decompiler is the first actually working analytical decompiler for Java and probably
+for a high-level programming language in general. Naturally it is still under development,
+please send your bug reports and improvement suggestions to the issue tracker.
+

create-sources.sh

@@ -0,0 +1,31 @@
+# idea soources have 280MB
+# decompiler itself is 375kB now, including test classes...
+VERSION=211.7442.40
+INPUT=$VERSION.tar.gz
+TOP_DIR=intellij-community-idea-$VERSION
+DECOMPILER_DIR=$TOP_DIR/plugins/java-decompiler
+NAME=fernflower
+OUT_NAME=$NAME-$VERSION
+OUTPUT=$OUT_NAME.tar.gz
+
+if [ -e $OUTPUT ] ; then
+  echo "$OUTPUT already exists"
+else
+  if [ -e $INPUT ] ; then
+    echo "$INPUT already exists, not downloading"
+    set -ex
+  else
+    set -ex
+    wget https://github.com/JetBrains/intellij-community/archive/idea/$INPUT
+  fi
+  tar tzf $INPUT | grep -e decompiler -e LICENSE
+  tar -xvf $INPUT  $DECOMPILER_DIR/engine
+  tar -xvf $INPUT  $TOP_DIR/LICENSE.txt
+  mv $TOP_DIR/LICENSE.txt $DECOMPILER_DIR/engine
+  pushd $DECOMPILER_DIR/
+    mv engine $OUT_NAME
+    tar -cJf $OUTPUT $OUT_NAME 
+  popd
+  mv $DECOMPILER_DIR/$OUTPUT .
+  rm -rf $TOP_DIR
+fi

fernflower

@@ -0,0 +1,7 @@
+#!/bin/bash
+. /usr/share/java-utils/java-functions
+
+MAIN_CLASS=org.jetbrains.java.decompiler.main.decompiler.ConsoleDecompiler
+
+set_classpath fernflower
+run ${@}

fernflower.spec

@@ -0,0 +1,185 @@
+#in noarch? why...
+%global debug_package %{nil}
+#javadoc is empty. Keep building it now with hope for bright future
+%global with_javadoc 1
+
+Name:       fernflower
+Version:    211.7442.40
+Release:    16%{?dist}
+Summary:    JIdea's java decompiler
+# Automatically converted from old format: ASL 2.0 - review is highly recommended.
+License:    Apache-2.0 
+URL:        https://github.com/JetBrains/intellij-community/tree/master/plugins/java-decompiler/engine
+
+#Source0:   https://github.com/JetBrains/intellij-community/archive/idea/%%{version}.tar.gz
+# this source is 280MB big, so only the decompiler is repacked via create-sources.sh and has 350kB
+# generated by source2; `create-sources.sh 183.5153.8`
+Source0:    %{name}-%{version}.tar.gz
+# launcher
+Source1:    %{name}
+Source2:    create-sources.sh
+
+Patch0:     remove_main.patch
+Patch1:     port_to_java_8.patch
+
+BuildArch:  noarch
+ExclusiveArch:  %{java_arches} noarch
+
+BuildRequires:  javapackages-tools
+BuildRequires:  java-25-devel
+%if %{with_javadoc}
+BuildRequires:  zip
+%endif
+Requires:      java-25-headless
+Requires:      javapackages-tools
+Provides:      %{name}-decompiler
+
+%description
+JIdea's decompiler is the first actually working analytical decompiler for Java and probably
+for a high-level programming language in general. Naturally it is still under development,
+please send your bug reports and improvement suggestions to the issue tracker.
+
+%if %{with_javadoc}
+%package javadoc
+Summary: %{name} API documentation
+Requires: javapackages-filesystem
+BuildArch: noarch
+Provides:  %{name}-decompiler-javadoc
+
+%description javadoc
+The %{name} 100% empty API documentation.
+%endif
+
+%prep
+%setup
+# removing test classes and jars, tests are not run in rpm build anyway (but can be run out of it)
+# maybe to pack them as demos?
+find | grep "\\.class$"
+find | grep "\\.jar$"
+rm -rvf test
+rm -rvf testData
+rm  -vf gradle/wrapper/gradle-wrapper.jar
+find | grep "\\.class$" && exit 1
+find | grep "\\.jar$"   && exit 1
+#removing main method from entry point jar
+%patch -P0
+%patch -P1 -p1
+
+%build
+mkdir build
+javac -source 8 -target 8 -d build `find src -type f`
+cd build
+jar -cf ../%{name}.jar  org
+cd ..
+mkdir build/libs
+mv %{name}.jar build/libs/
+%if %{with_javadoc}
+# this is sad. Javadoc is really 100% empty
+mkdir fernflower-javadoc 
+cd fernflower-javadoc 
+javadoc `find ../src -type f`
+cd ..
+zip -r %{name}.zip fernflower-javadoc
+%endif
+
+%install
+mkdir -p $RPM_BUILD_ROOT/%{_bindir}/
+cp %{SOURCE1}  $RPM_BUILD_ROOT/%{_bindir}/ # cusotm launcher for main method in main jar
+mkdir -p $RPM_BUILD_ROOT/%{_javadir}/
+cp  build/libs/%{name}.jar $RPM_BUILD_ROOT/%{_javadir}
+%if %{with_javadoc}
+mkdir -p $RPM_BUILD_ROOT/%{_javadocdir}/%{name}
+cp %{name}.zip $RPM_BUILD_ROOT/%{_javadocdir}/
+%endif
+
+%files
+%license LICENSE.txt
+%doc README.md
+%{_javadir}/%{name}.jar
+%attr(755, root, root) %{_bindir}/%{name}
+
+%if %{with_javadoc}
+%files javadoc
+%license LICENSE.txt
+%doc README.md
+%{_javadocdir}/%{name}.zip
+%endif
+
+%changelog
+* Mon Jul 28 2025 jiri vanek <jvanek@redhat.com> - 211.7442.40-16
+- Rebuilt for java-25-openjdk as preffered jdk
+
+* Wed Jul 23 2025 Fedora Release Engineering <releng@fedoraproject.org> - 211.7442.40-15
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
+
+* Thu Jan 16 2025 Fedora Release Engineering <releng@fedoraproject.org> - 211.7442.40-14
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
+
+* Wed Jul 24 2024 Miroslav Suchý <msuchy@redhat.com> - 211.7442.40-13
+- convert license to SPDX
+
+* Wed Jul 17 2024 Fedora Release Engineering <releng@fedoraproject.org> - 211.7442.40-12
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
+
+* Tue Feb 27 2024 Jiri Vanek <jvanek@redhat.com> - 211.7442.40-11
+- Rebuilt for java-21-openjdk as system jdk
+
+* Wed Jan 24 2024 Fedora Release Engineering <releng@fedoraproject.org> - 211.7442.40-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
+
+* Fri Jan 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 211.7442.40-9
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
+
+* Wed Jul 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 211.7442.40-8
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
+
+* Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 211.7442.40-7
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild
+
+* Thu Jul 21 2022 Fedora Release Engineering <releng@fedoraproject.org> - 211.7442.40-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild
+
+* Fri Jul 08 2022 Jiri Vanek <jvanek@redhat.com> - 211.7442.40-5
+- Rebuilt for Drop i686 JDKs
+
+* Sat Feb 05 2022 Jiri Vanek <jvanek@redhat.com> - 211.7442.40-4
+- Rebuilt for java-17-openjdk as system jdk
+
+* Thu Jan 20 2022 Fedora Release Engineering <releng@fedoraproject.org> - 211.7442.40-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild
+
+* Wed Jul 21 2021 Fedora Release Engineering <releng@fedoraproject.org> - 211.7442.40-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
+
+* Wed Jun 02 2021 Marian Koncek <mkoncek@redhat.com> - 211.7442.40-1
+- Update to upstream version 211.7442.40
+
+* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 183.5153.8-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
+* Thu Dec 10 2020 Jiri Vanek <jvanek@redhat.com> - 183.5153.8-9
+- set source/target of 8
+
+* Mon Jul 27 2020 Fedora Release Engineering <releng@fedoraproject.org> - 183.5153.8-8
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
+* Fri Jul 10 2020 Jiri Vanek <jvanek@redhat.com> - 183.5153.8-7
+- Rebuilt for JDK-11, see https://fedoraproject.org/wiki/Changes/Java11
+
+* Tue Feb 18 2020 Jiri Vanek <jvanek@redhat.com> - 183.5153.8-6
+- moved to gradle-less build
+
+* Tue Jan 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 183.5153.8-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
+
+* Thu Jul 25 2019 Fedora Release Engineering <releng@fedoraproject.org> - 183.5153.8-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
+* Thu Jan 31 2019 Fedora Release Engineering <releng@fedoraproject.org> - 183.5153.8-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
+
+* Fri Jan 18 2019 Jiri Vanek <jvanek@redhat.com> - 183.5153.8-2
+- added virtual provides of fernflower-decompiler and fernflower-decompiler-javadoc
+
+* Wed Jan 09 2019 Jiri Vanek <jvanek@redhat.com> - 183.5153.8-1
+- initial package

port_to_java_8.patch

@@ -0,0 +1,13 @@
+diff --git a/src/org/jetbrains/java/decompiler/util/SFormsFastMapDirect.java b/src/org/jetbrains/java/decompiler/util/SFormsFastMapDirect.java
+index bb8b4dd..30fcb9b 100644
+--- a/src/org/jetbrains/java/decompiler/util/SFormsFastMapDirect.java
++++ b/src/org/jetbrains/java/decompiler/util/SFormsFastMapDirect.java
+@@ -342,7 +342,7 @@ public class SFormsFastMapDirect {
+         if (ent != null) {
+           final int key = i == 0 ? ikey : (i == 1 ? ikey + VarExprent.STACK_BASE : -ikey);
+ 
+-          list.add(new Entry<>() {
++          list.add(new Entry<Integer, FastSparseSet<Integer>>() {
+ 
+             private final Integer var = key;
+             private final FastSparseSet<Integer> val = ent;

remove_main.patch

@@ -0,0 +1,18 @@
+--- build.gradle	2021-05-31 12:00:45.000000000 +0200
++++ build.gradle.rej	2021-06-02 14:27:41.778875605 +0200
+@@ -11,15 +11,6 @@
+   test.java.srcDirs 'test'
+ }
+ 
+-repositories { jcenter() }
+-dependencies {
+-  testCompile 'junit:junit:4.12'
+-  testCompile 'org.assertj:assertj-core:3.12.2'
+-}
+-
+ jar {
+   archiveName 'fernflower.jar'
+-  manifest {
+-    attributes 'Main-Class': 'org.jetbrains.java.decompiler.main.decompiler.ConsoleDecompiler'
+-  }
+ }

sources

@@ -0,0 +1 @@
+SHA512 (fernflower-211.7442.40.tar.gz) = 54138ec2987f27887dc7a882d0e4d5bf6a1a7c4d9f8e73bafd7cd957181779bb59a413117cd65dd29973c9072f5b89f797c78581113f83043191894b0631ab31