[JENKINS-43531] Plugins may not be expecting InvalidPathException

- Plugins should really be expecting it, but as historically they have not, may as well convert to IOE for them

core/src/main/java/hudson/WebAppMain.java

@@ -26,6 +26,7 @@ package hudson;
 import hudson.security.ACLContext;
 import java.io.OutputStream;
 import java.nio.file.Files;
+import java.nio.file.InvalidPathException;
 import java.nio.file.StandardOpenOption;
 import jenkins.util.SystemProperties;
 import com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider;
@@ -278,7 +279,7 @@ public class WebAppMain implements ServletContextListener {
     private void recordBootAttempt(File home) {
         try (OutputStream o=Files.newOutputStream(BootFailure.getBootFailureFile(home).toPath(), StandardOpenOption.CREATE, StandardOpenOption.APPEND)) {
             o.write((new Date().toString() + System.getProperty("line.separator", "\n")).toString().getBytes());
-        } catch (IOException e) {
+        } catch (IOException | InvalidPathException e) {
             LOGGER.log(WARNING, "Failed to record boot attempts",e);
         }
     }