Index: /trunk/src/org/openstreetmap/josm/gui/MainApplication.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/MainApplication.java	(revision 18985)
+++ /trunk/src/org/openstreetmap/josm/gui/MainApplication.java	(revision 18986)
@@ -418,5 +418,5 @@
         if (canContinue) {
             ed = new ExtendedDialog(mainFrame, title, tr("Stop"), tr("Continue"));
-            ed.setButtonIcons("cancel", "ok");
+            ed.setButtonIcons("cancel", "apply");
         } else {
             ed = new ExtendedDialog(mainFrame, title, tr("Stop"));
Index: /trunk/src/org/openstreetmap/josm/tools/PlatformHook.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/tools/PlatformHook.java	(revision 18985)
+++ /trunk/src/org/openstreetmap/josm/tools/PlatformHook.java	(revision 18986)
@@ -414,5 +414,5 @@
         final StringBuilder missingArguments = new StringBuilder();
         for (String arg : expectedJvmArguments) {
-            if (!vmArguments.contains(arg)) {
+            if (vmArguments.stream().noneMatch(s -> s.contains(arg))) {
                 if (missingArguments.length() > 0) {
                     missingArguments.append("<br>");
Index: /trunk/tools/eclipse/JOSM (Java 11).launch
===================================================================
--- /trunk/tools/eclipse/JOSM (Java 11).launch	(revision 18985)
+++ /trunk/tools/eclipse/JOSM (Java 11).launch	(revision 18986)
@@ -10,9 +10,9 @@
     <booleanAttribute key="org.eclipse.jdt.launching.ATTR_SHOW_CODEDETAILS_IN_EXCEPTION_MESSAGES" value="true"/>
     <booleanAttribute key="org.eclipse.jdt.launching.ATTR_USE_CLASSPATH_ONLY_JAR" value="false"/>
-    <stringAttribute key="org.eclipse.jdt.launching.JRE_CONTAINER" value="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
+    <stringAttribute key="org.eclipse.jdt.launching.JRE_CONTAINER" value="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11/"/>
     <stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="org.openstreetmap.josm.gui.MainApplication"/>
     <stringAttribute key="org.eclipse.jdt.launching.MODULE_NAME" value="JOSM"/>
     <stringAttribute key="org.eclipse.jdt.launching.PROGRAM_ARGUMENTS" value="--debug"/>
     <stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="JOSM"/>
-    <stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-ea -Xverify:none --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/java.text=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/jdk.internal.loader=ALL-UNNAMED --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/javax.swing.text.html=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-modules java.scripting,java.sql,javafx.controls,javafx.media,javafx.swing,javafx.web"/>
+    <stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-ea -Xverify:none --add-exports=java.desktop/com.sun.imageio.plugins.jpeg=ALL-UNNAMED --add-exports=java.desktop/com.sun.imageio.spi=ALL-UNNAMED --add-exports=java.base/sun.security.action=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/java.text=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/jdk.internal.loader=ALL-UNNAMED --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/javax.swing.text.html=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-modules java.scripting,java.sql,javafx.controls,javafx.media,javafx.swing,javafx.web"/>
 </launchConfiguration>
Index: /trunk/tools/eclipse/JOSM (Java latest).launch
===================================================================
--- /trunk/tools/eclipse/JOSM (Java latest).launch	(revision 18985)
+++ /trunk/tools/eclipse/JOSM (Java latest).launch	(revision 18986)
@@ -12,8 +12,8 @@
     <booleanAttribute key="org.eclipse.jdt.launching.ATTR_SHOW_CODEDETAILS_IN_EXCEPTION_MESSAGES" value="true"/>
     <booleanAttribute key="org.eclipse.jdt.launching.ATTR_USE_CLASSPATH_ONLY_JAR" value="false"/>
-    <stringAttribute key="org.eclipse.jdt.launching.JRE_CONTAINER" value="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jdk-16.0.1.9-hotspot"/>
+    <stringAttribute key="org.eclipse.jdt.launching.JRE_CONTAINER" value="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21/"/>
     <stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="org.openstreetmap.josm.gui.MainApplication"/>
     <stringAttribute key="org.eclipse.jdt.launching.MODULE_NAME" value="JOSM"/>
     <stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="JOSM"/>
-    <stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-ea --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/java.text=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/jdk.internal.loader=ALL-UNNAMED --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/javax.swing.text.html=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --module-path C:\Java\javafx-sdk-16\lib --add-modules java.scripting,java.sql,javafx.controls,javafx.media,javafx.swing,javafx.web"/>
+    <stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-ea --add-exports=java.desktop/com.sun.imageio.plugins.jpeg=ALL-UNNAMED --add-exports=java.desktop/com.sun.imageio.spi=ALL-UNNAMED --add-exports=java.base/sun.security.action=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/java.text=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/jdk.internal.loader=ALL-UNNAMED --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/javax.swing.text.html=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --module-path C:\Java\javafx-sdk-16\lib --add-modules java.scripting,java.sql,javafx.controls,javafx.media,javafx.swing,javafx.web"/>
 </launchConfiguration>