Fixed NullPointerException when a version not exists.

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/core/asset/MinecraftAssetService.java

@@ -56,7 +56,8 @@ public class MinecraftAssetService extends IMinecraftAssetService {
     }
 
     public Task downloadAssets(final MinecraftVersion mv) {
-        Utils.requireNonNull(mv);
+        if (mv == null)
+            return null;
         return new TaskInfo("Download Assets") {
             Collection<Task> afters = new HashSet<>();
 

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/core/download/MinecraftDownloadService.java

@@ -55,7 +55,7 @@ public class MinecraftDownloadService extends IMinecraftDownloadService {
             return downloadLibraries;
         MinecraftVersion v = mv.resolve(service.version());
         for (IMinecraftLibrary l : v.getLibraries())
-            if (l != null && l.allow()) {
+            if (l != null && l.allow() && l.getDownloadInfo() != null) {
                 File ff = l.getFilePath(service.baseDirectory());
                 if (!ff.exists()) {
                     String libURL = l.getDownloadInfo().getUrl(service.getDownloadType());

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/core/version/MinecraftLibrary.java

@@ -89,6 +89,8 @@ public class MinecraftLibrary extends IMinecraftLibrary {
 
     public String formatName() {
         String[] s = name.split(":");
+        if (s.length < 3)
+            return null;
         StringBuilder sb = new StringBuilder(s[0].replace('.', '/')).append('/').append(s[1]).append('/').append(s[2]).append('/').append(s[1]).append('-').append(s[2]);
         if (natives != null)
             sb.append('-').append(getNative());
@@ -120,8 +122,11 @@ public class MinecraftLibrary extends IMinecraftLibrary {
             downloads.artifact = info = new LibraryDownloadInfo();
         else
             info = downloads.artifact;
-        if (StrUtils.isBlank(info.path))
+        if (StrUtils.isBlank(info.path)) {
             info.path = formatName();
+            if (info.path == null)
+                return null;
+        }
         info.forgeURL = this.url;
         return info;
     }

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/setting/Profile.java

@@ -46,7 +46,7 @@ public final class Profile {
     }
 
     public Profile(String name) {
-        this(name, IOUtils.currentDir().getPath());
+        this(name, new File(IOUtils.currentDir(), ".minecraft").getPath());
     }
 
     public Profile(String name, String gameDir) {

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/setting/Settings.java

@@ -58,8 +58,6 @@ public final class Settings {
         DownloadType.setSuggestedDownloadType(SETTINGS.getDownloadSource());
         if (!getProfiles().containsKey(DEFAULT_PROFILE))
             getProfiles().put(DEFAULT_PROFILE, new Profile(DEFAULT_PROFILE));
-        if (!getProfiles().containsKey(HOME_PROFILE))
-            getProfiles().put(HOME_PROFILE, new Profile(HOME_PROFILE, MCUtils.getLocation().getPath()));
 
         for (Map.Entry<String, Profile> entry : getProfiles().entrySet()) {
             Profile e = entry.getValue();
@@ -85,8 +83,11 @@ public final class Settings {
             } catch (IOException | JsonSyntaxException e) {
                 HMCLog.warn("Something happened wrongly when load settings.", e);
             }
-        else
+        else {
             HMCLog.log("No settings file here, may be first loading.");
+            if (!c.getConfigurations().containsKey(HOME_PROFILE))
+                c.getConfigurations().put(HOME_PROFILE, new Profile(HOME_PROFILE, MCUtils.getLocation().getPath()));
+        }
         return c;
     }
 
@@ -154,7 +155,13 @@ public final class Settings {
             MessageBox.Show(C.i18n("settings.cannot_remove_default_config"));
             return false;
         }
-        return getProfiles().remove(ver) != null;
+        boolean notify = false;
+        if (getLastProfile().getName().equals(ver))
+            notify = true;
+        boolean flag = getProfiles().remove(ver) != null;
+        if (notify && flag)
+            onProfileChanged();
+        return flag;
     }
 
     public static final EventHandler<Profile> profileChangedEvent = new EventHandler(null);

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/ui/GameSettingsPanel.java

@@ -949,8 +949,7 @@ public final class GameSettingsPanel extends AnimatedPanel implements DropTarget
     private void btnRemoveProfileActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnRemoveProfileActionPerformed
         if (MessageBox.Show(C.i18n("ui.message.sure_remove", Settings.getLastProfile().getName()), MessageBox.YES_NO_OPTION) == MessageBox.NO_OPTION)
             return;
-        if (Settings.delProfile(Settings.getLastProfile()))
-            loadProfiles();
+        Settings.delProfile(Settings.getLastProfile());
     }//GEN-LAST:event_btnRemoveProfileActionPerformed
 
     private void cboVersionsItemStateChanged(java.awt.event.ItemEvent evt) {//GEN-FIRST:event_cboVersionsItemStateChanged

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/util/CrashReporter.java

@@ -48,7 +48,7 @@ public class CrashReporter implements Thread.UncaughtExceptionHandler {
             put("MessageBox", "");
             put("AWTError", "");
             put("JFileChooser", "Has your operating system been installed completely or is a ghost system? ");
-            put("JceSecurity", "Has your operating system been installed completely or is a ghost system? ");
+            put("Jce", "Has your operating system been installed completely or is a ghost system? ");
             put("couldn't create component peer", "Fucking computer!");
             put("sun.awt.shell.Win32ShellFolder2", "crash.user_fault");
             put("UnsatisfiedLinkError", "crash.user_fault");

HMCLAPI/src/main/java/org/jackhuang/hellominecraft/util/tasks/TaskWindow.java

@@ -322,7 +322,8 @@ public class TaskWindow extends javax.swing.JDialog
         boolean flag;
 
         public TaskWindowFactory append(Task t) {
-            ll.add(t);
+            if (t != null)
+                ll.add(t);
             return this;
         }