diff -up bolzplatz2006-1.0.3/libsrc/lwjgl/build.xml.jdk11 bolzplatz2006-1.0.3/libsrc/lwjgl/build.xml
--- bolzplatz2006-1.0.3/libsrc/lwjgl/build.xml.jdk11	2021-12-02 12:17:38.588412431 +0100
+++ bolzplatz2006-1.0.3/libsrc/lwjgl/build.xml	2021-12-02 12:18:19.332606914 +0100
@@ -292,78 +292,25 @@
 	
 	<!-- Compiles the Java source code -->
 	<target name="compile" description="Compiles the java source code">
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/*.java" source="1.4" target="1.4" taskname="lwjgl" />
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/input/**" source="1.4" target="1.4" taskname="input" />
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/openal/**" source="1.4" target="1.4" taskname="openal" />
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/audio/*.java" source="1.5" target="1.5" taskname="audio" />
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/audio/vorbis/*.java" source="1.5" target="1.5" taskname="audio-vorbis" />
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/opengl/**" source="1.4" target="1.4" taskname="opengl" />
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/test/**" source="1.4" target="1.4" taskname="test" />
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/examples/**" source="1.4" target="1.4" taskname="examples" />
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/util/**" excludes="org/lwjgl/util/generator/**" source="1.4" target="1.4" taskname="util" />
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/devil/**" source="1.4" target="1.4" taskname="devil"/>
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" nativeHeaderDir="${lwjgl.src.headers}" includes="org/lwjgl/*.java" source="1.8" target="1.8" taskname="lwjgl" />
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" nativeHeaderDir="${lwjgl.src.headers}" includes="org/lwjgl/input/**" source="1.8" target="1.8" taskname="input" />
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" nativeHeaderDir="${lwjgl.src.headers}" includes="org/lwjgl/openal/**" source="1.8" target="1.8" taskname="openal" />
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" nativeHeaderDir="${lwjgl.src.headers}/ov" includes="org/lwjgl/audio/*.java" source="1.8" target="1.8" taskname="audio" />
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" nativeHeaderDir="${lwjgl.src.headers}/ov" includes="org/lwjgl/audio/vorbis/*.java" source="1.8" target="1.8" taskname="audio-vorbis" />
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" nativeHeaderDir="${lwjgl.src.headers}" includes="org/lwjgl/opengl/**" source="1.8" target="1.8" taskname="opengl" />
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" nativeHeaderDir="${lwjgl.src.headers}" includes="org/lwjgl/test/**" source="1.8" target="1.8" taskname="test" />
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" nativeHeaderDir="${lwjgl.src.headers}" includes="org/lwjgl/examples/**" source="1.8" target="1.8" taskname="examples" />
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" nativeHeaderDir="${lwjgl.src.headers}" includes="org/lwjgl/util/**" excludes="org/lwjgl/util/generator/**" source="1.8" target="1.8" taskname="util" />
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" nativeHeaderDir="${lwjgl.src.headers}/devil" includes="org/lwjgl/devil/**" source="1.8" target="1.8" taskname="devil"/>
 	</target>
 	
 	<!-- Generates the native headers from source files -->
 	<target name="headers" description="invokes javah on java classes" depends="compile">
-		<!-- platform specific classes -->
-		<javah classpath="${lwjgl.bin}" destdir="${lwjgl.src.native}/linux" force="yes">
-			<class name="org.lwjgl.opengl.LinuxDisplay" />
-			<class name="org.lwjgl.opengl.LinuxPeerInfo" />
-			<class name="org.lwjgl.opengl.LinuxPbufferPeerInfo" />
-			<class name="org.lwjgl.opengl.LinuxDisplayPeerInfo" />
-			<class name="org.lwjgl.opengl.LinuxAWTGLCanvasPeerInfo" />
-			<class name="org.lwjgl.opengl.LinuxContextImplementation" />
-			<class name="org.lwjgl.opengl.LinuxCanvasImplementation" />
-		</javah>
-		<javah classpath="${lwjgl.bin}" destdir="${lwjgl.src.native}/win32" force="yes">
-			<class name="org.lwjgl.opengl.Win32PbufferPeerInfo" />
-			<class name="org.lwjgl.opengl.Win32Display" />
-			<class name="org.lwjgl.NativeSysImplementation" />
-			<class name="org.lwjgl.opengl.Win32AWTGLCanvasPeerInfo" />
-			<class name="org.lwjgl.opengl.Win32PeerInfo" />
-			<class name="org.lwjgl.opengl.Win32DisplayPeerInfo" />
-			<class name="org.lwjgl.opengl.Win32ContextImplementation" />
-		</javah>
-		<javah classpath="${lwjgl.bin}" destdir="${lwjgl.src.native}/macosx" force="yes">
-			<class name="org.lwjgl.opengl.MacOSXCanvasPeerInfo" />
-			<class name="org.lwjgl.opengl.MacOSXPeerInfo" />
-			<class name="org.lwjgl.opengl.MacOSXPbufferPeerInfo" />
-			<class name="org.lwjgl.opengl.MacOSXDisplay" />
-			<class name="org.lwjgl.opengl.MacOSXContextImplementation" />
-		</javah>
-		<!-- lwjgl -->
-		<javah classpath="${lwjgl.bin}" destdir="${lwjgl.src.headers}" force="yes">
-			<class name="org.lwjgl.opengl.AWTSurfaceLock" />
-			<class name="org.lwjgl.DefaultSysImplementation" />
-			<class name="org.lwjgl.input.Cursor" />
-			<class name="org.lwjgl.input.Keyboard" />
-			<class name="org.lwjgl.input.Mouse" />
-
-			<class name="org.lwjgl.openal.ALC" />
-			<class name="org.lwjgl.openal.AL" />
-
-			<class name="org.lwjgl.opengl.GLContext" />
-			<class name="org.lwjgl.opengl.Pbuffer" />
-		</javah>
-		<!-- ogg vorbis, streaming -->
-		<javah classpath="${lwjgl.bin}" destdir="${lwjgl.src.headers}/ov" force="yes">
-			<class name="org.lwjgl.audio.StreamPlaylist" />
-			<class name="org.lwjgl.audio.vorbis.DataStream" />
-			<class name="org.lwjgl.audio.vorbis.Util" />
-		</javah>
-
-		<!-- devil -->
-		<javah classpath="${lwjgl.bin}" destdir="${lwjgl.src.headers}/devil" force="yes">
-			<class name="org.lwjgl.devil.IL"/>
-			<class name="org.lwjgl.devil.ILU"/>
-			<class name="org.lwjgl.devil.ILUT"/>
-		</javah>
 	</target>	
 	
 	<!-- Creates the Javadoc -->
 	<target name="javadoc" description="Creates javadoc from java source code">
-		<javadoc destdir="${lwjgl.docs}/javadoc" author="true" version="true" use="true" source="1.4" windowtitle="LWJGL API">
+		<javadoc destdir="${lwjgl.docs}/javadoc" author="true" version="true" use="true" source="1.8" windowtitle="LWJGL API">
 			<fileset refid="lwjgl.javadoc.fileset" />
 			<doctitle><![CDATA[<h1>Lightweight Java Game Toolkit</h1>]]></doctitle>
 			<bottom><![CDATA[<i>Copyright &#169; 2002-2005 lwjgl.org. All Rights Reserved.</i>]]></bottom>
@@ -372,7 +319,7 @@
 
 	<!-- Compiles the Java source code -->
 	<target name="generators" description="Compiles the native method generators">
-		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/util/generator/**.java" source="1.4" target="1.4" taskname="generator">
+		<javac debug="yes" srcdir="${lwjgl.src}/java/" destdir="${lwjgl.bin}" includes="org/lwjgl/util/generator/**.java" source="1.8" target="1.8" taskname="generator">
 			<compilerarg value="-Xlint:all"/>
 		</javac>
 	</target>
diff -up bolzplatz2006-1.0.3/libsrc/lwjgl/src/native/linux/Makefile.jdk11 bolzplatz2006-1.0.3/libsrc/lwjgl/src/native/linux/Makefile
--- bolzplatz2006-1.0.3/libsrc/lwjgl/src/native/linux/Makefile.jdk11	2021-12-02 12:18:11.801570965 +0100
+++ bolzplatz2006-1.0.3/libsrc/lwjgl/src/native/linux/Makefile	2021-12-02 12:18:19.332606914 +0100
@@ -4,7 +4,7 @@ CC=gcc
 LINKER=gcc
 STRIP=
 CFLAGS_LINK=-shared -Wall
-LIBS=-lX11 -lXext -lpthread -L$(JAVA_HOME)/jre/lib/$(JAVA_ARCH) -ljawt -lvorbisfile -lXxf86vm -lXcursor -lXrender -lXrandr
+LIBS=-lX11 -lXext -lpthread -L$(JAVA_HOME)/lib -ljawt -lvorbisfile -lXxf86vm -lXcursor -lXrender -lXrandr
 CFLAGS_O=-fPIC $(RPM_OPT_FLAGS) -D_X11 -pthread -c -I../common -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/linux
 SRC=$(wildcard *.c) $(wildcard ../common/*.c) $(wildcard ../common/arb/*.c) $(wildcard ../common/ati/*.c) $(wildcard ../common/ext/*.c) $(wildcard ../common/nv/*.c) $(wildcard ../common/ov/*.c)
 OBJECTS=$(subst .c,.o,$(SRC))