// // Decompiled by Procyon v0.6.0 // package com.hypixel.hytale.server.core.update; import com.hypixel.hytale.codec.builder.BuilderCodec; import com.hypixel.hytale.codec.KeyedCodec; import com.hypixel.hytale.codec.Codec; import java.util.jar.Attributes; import java.util.jar.Manifest; import java.util.jar.JarFile; import java.nio.file.LinkOption; import com.hypixel.hytale.server.core.HytaleServerConfig; import com.hypixel.hytale.common.util.java.ManifestUtil; import com.hypixel.hytale.server.core.HytaleServer; import com.hypixel.hytale.server.core.auth.AuthConfig; import java.io.OutputStream; import com.hypixel.hytale.server.core.util.io.FileUtil; import java.util.HexFormat; import java.nio.file.OpenOption; import java.io.InputStream; import java.security.NoSuchAlgorithmException; import java.security.MessageDigest; import java.nio.file.Files; import java.nio.file.attribute.FileAttribute; import java.util.concurrent.CancellationException; import javax.annotation.Nullable; import java.io.IOException; import com.hypixel.hytale.codec.ExtraInfo; import com.hypixel.hytale.codec.EmptyExtraInfo; import com.hypixel.hytale.codec.util.RawJsonReader; import java.net.http.HttpResponse; import java.net.URI; import java.net.http.HttpRequest; import java.util.logging.Level; import com.hypixel.hytale.server.core.auth.ServerAuthManager; import java.util.concurrent.CompletableFuture; import javax.annotation.Nonnull; import java.net.http.HttpClient; import java.nio.file.Path; import java.time.Duration; import com.hypixel.hytale.logger.HytaleLogger; public class UpdateService { private static final HytaleLogger LOGGER; private static final Duration REQUEST_TIMEOUT; private static final Duration DOWNLOAD_TIMEOUT; private static final Path STAGING_DIR; private static final Path BACKUP_DIR; private final HttpClient httpClient; private final String accountDataUrl; public UpdateService() { this.accountDataUrl = "https://account-data.hytale.com"; this.httpClient = HttpClient.newBuilder().connectTimeout(UpdateService.REQUEST_TIMEOUT).followRedirects(HttpClient.Redirect.NORMAL).build(); } @Nullable public CompletableFuture checkForUpdate(@Nonnull final String patchline) { return CompletableFuture.supplyAsync(() -> { try { final ServerAuthManager authManager = ServerAuthManager.getInstance(); final String accessToken = authManager.getOAuthAccessToken(); if (accessToken == null) { UpdateService.LOGGER.at(Level.WARNING).log("Cannot check for updates - not authenticated"); return null; } else { final String manifestPath = String.format("version/%s.json", patchline); final String signedUrl = this.getSignedUrl(accessToken, manifestPath); if (signedUrl == null) { UpdateService.LOGGER.at(Level.WARNING).log("Failed to get signed URL for version manifest"); return null; } else { final HttpRequest manifestRequest = HttpRequest.newBuilder().uri(URI.create(signedUrl)).header("Accept", "application/json").timeout(UpdateService.REQUEST_TIMEOUT).GET().build(); final HttpResponse response = this.httpClient.send(manifestRequest, HttpResponse.BodyHandlers.ofString()); if (response.statusCode() != 200) { UpdateService.LOGGER.at(Level.WARNING).log("Failed to fetch version manifest: HTTP %d", response.statusCode()); return null; } else { final VersionManifest manifest = VersionManifest.CODEC.decodeJson(new RawJsonReader(response.body().toCharArray()), EmptyExtraInfo.EMPTY); if (manifest == null || manifest.version == null) { UpdateService.LOGGER.at(Level.WARNING).log("Invalid version manifest response"); return null; } else { UpdateService.LOGGER.at(Level.INFO).log("Found version: %s", manifest.version); return manifest; } } } } } catch (final IOException e) { UpdateService.LOGGER.at(Level.WARNING).log("IO error checking for updates: %s", e.getMessage()); return null; } catch (final InterruptedException e2) { Thread.currentThread().interrupt(); UpdateService.LOGGER.at(Level.WARNING).log("Update check interrupted"); return null; } catch (final Exception e3) { UpdateService.LOGGER.at(Level.WARNING).withCause(e3).log("Error checking for updates"); return null; } }); } public DownloadTask downloadUpdate(@Nonnull final VersionManifest manifest, @Nonnull final Path stagingDir, @Nullable final ProgressCallback progressCallback) { final CompletableFuture future = new CompletableFuture(); final Thread thread = new Thread(() -> { try { final boolean result = this.performDownload(manifest, stagingDir, progressCallback); future.complete(result); } catch (final CancellationException e) { future.completeExceptionally(e); } catch (final InterruptedException e2) { Thread.currentThread().interrupt(); future.completeExceptionally(new CancellationException("Update download interrupted")); } catch (final Exception e3) { UpdateService.LOGGER.at(Level.WARNING).withCause(e3).log("Error downloading update"); future.complete(false); } return; }, "UpdateDownload"); thread.setDaemon(true); thread.start(); return new DownloadTask(future, thread); } private boolean performDownload(@Nonnull final VersionManifest manifest, @Nonnull final Path stagingDir, @Nullable final ProgressCallback progressCallback) throws IOException, InterruptedException { final ServerAuthManager authManager = ServerAuthManager.getInstance(); final String accessToken = authManager.getOAuthAccessToken(); if (accessToken == null) { UpdateService.LOGGER.at(Level.WARNING).log("Cannot download update - not authenticated"); return false; } final String signedUrl = this.getSignedUrl(accessToken, manifest.downloadUrl); if (signedUrl == null) { UpdateService.LOGGER.at(Level.WARNING).log("Failed to get signed URL for download"); return false; } final HttpRequest downloadRequest = HttpRequest.newBuilder().uri(URI.create(signedUrl)).timeout(UpdateService.DOWNLOAD_TIMEOUT).GET().build(); final Path tempFile = Files.createTempFile("hytale-update-", ".zip", (FileAttribute[])new FileAttribute[0]); try { final HttpResponse response = this.httpClient.send(downloadRequest, HttpResponse.BodyHandlers.ofInputStream()); if (response.statusCode() != 200) { UpdateService.LOGGER.at(Level.WARNING).log("Failed to download update: HTTP %d", response.statusCode()); return false; } final long contentLength = response.headers().firstValueAsLong("Content-Length").orElse(-1L); MessageDigest digest; try { digest = MessageDigest.getInstance("SHA-256"); } catch (final NoSuchAlgorithmException e) { UpdateService.LOGGER.at(Level.SEVERE).log("SHA-256 not available - this should never happen"); return false; } try (final InputStream inputStream = response.body(); final OutputStream outputStream = Files.newOutputStream(tempFile, new OpenOption[0])) { final byte[] buffer = new byte[8192]; long downloaded = 0L; int read; while ((read = inputStream.read(buffer)) != -1) { if (Thread.currentThread().isInterrupted()) { throw new CancellationException("Update download cancelled"); } outputStream.write(buffer, 0, read); digest.update(buffer, 0, read); downloaded += read; if (progressCallback == null || contentLength <= 0L) { continue; } final int percent = (int)(downloaded * 100L / contentLength); progressCallback.onProgress(percent, downloaded, contentLength); } } final String actualHash = HexFormat.of().formatHex(digest.digest()); if (manifest.sha256 != null && !manifest.sha256.equalsIgnoreCase(actualHash)) { UpdateService.LOGGER.at(Level.WARNING).log("Checksum mismatch! Expected: %s, Got: %s", manifest.sha256, actualHash); return false; } if (!clearStagingDir(stagingDir)) { UpdateService.LOGGER.at(Level.WARNING).log("Failed to clear staging directory before extraction"); return false; } Files.createDirectories(stagingDir, (FileAttribute[])new FileAttribute[0]); if (Thread.currentThread().isInterrupted()) { throw new CancellationException("Update download cancelled"); } FileUtil.extractZip(tempFile, stagingDir); UpdateService.LOGGER.at(Level.INFO).log("Update %s downloaded and extracted to staging", manifest.version); return true; } finally { Files.deleteIfExists(tempFile); } } @Nullable private String getSignedUrl(final String accessToken, final String path) throws IOException, InterruptedException { final String url = this.accountDataUrl + "/game-assets/" + path; final HttpRequest request = HttpRequest.newBuilder().uri(URI.create(url)).header("Accept", "application/json").header("Authorization", "Bearer " + accessToken).header("User-Agent", AuthConfig.USER_AGENT).timeout(UpdateService.REQUEST_TIMEOUT).GET().build(); final HttpResponse response = this.httpClient.send(request, HttpResponse.BodyHandlers.ofString()); if (response.statusCode() != 200) { UpdateService.LOGGER.at(Level.WARNING).log("Failed to get signed URL: HTTP %d - %s", response.statusCode(), response.body()); return null; } final SignedUrlResponse signedResponse = SignedUrlResponse.CODEC.decodeJson(new RawJsonReader(response.body().toCharArray()), EmptyExtraInfo.EMPTY); return (signedResponse != null) ? signedResponse.url : null; } @Nonnull public static String getEffectivePatchline() { final HytaleServerConfig.UpdateConfig config = HytaleServer.get().getConfig().getUpdateConfig(); String patchline = config.getPatchline(); if (patchline != null && !patchline.isEmpty()) { return patchline; } patchline = ManifestUtil.getPatchline(); return (patchline != null) ? patchline : "release"; } public static boolean isValidUpdateLayout() { final Path parent = Path.of("..", new String[0]).toAbsolutePath(); return Files.exists(parent.resolve("Assets.zip"), new LinkOption[0]) && (Files.exists(parent.resolve("start.sh"), new LinkOption[0]) || Files.exists(parent.resolve("start.bat"), new LinkOption[0])); } @Nonnull public static Path getStagingDir() { return UpdateService.STAGING_DIR; } @Nonnull public static Path getBackupDir() { return UpdateService.BACKUP_DIR; } @Nullable public static String getStagedVersion() { final Path stagedJar = UpdateService.STAGING_DIR.resolve("Server").resolve("HytaleServer.jar"); if (!Files.exists(stagedJar, new LinkOption[0])) { return null; } return readVersionFromJar(stagedJar); } public static boolean deleteStagedUpdate() { return safeDeleteUpdaterDir(UpdateService.STAGING_DIR, "staging"); } public static boolean deleteBackupDir() { return safeDeleteUpdaterDir(UpdateService.BACKUP_DIR, "backup"); } private static boolean clearStagingDir(@Nonnull final Path stagingDir) { if (!Files.exists(stagingDir, new LinkOption[0])) { return true; } if (stagingDir.toAbsolutePath().normalize().equals(UpdateService.STAGING_DIR.toAbsolutePath().normalize())) { return deleteStagedUpdate(); } try { FileUtil.deleteDirectory(stagingDir); return true; } catch (final IOException e) { UpdateService.LOGGER.at(Level.WARNING).log("Failed to delete staging dir %s: %s", stagingDir, e.getMessage()); return false; } } private static boolean safeDeleteUpdaterDir(final Path dir, final String expectedName) { try { if (!Files.exists(dir, new LinkOption[0])) { return true; } final Path absolute = dir.toAbsolutePath().normalize(); final Path parent = absolute.getParent(); if (parent == null || !parent.getFileName().toString().equals("updater")) { UpdateService.LOGGER.at(Level.SEVERE).log("Refusing to delete %s - not within updater/ directory", absolute); return false; } if (!absolute.getFileName().toString().equals(expectedName)) { UpdateService.LOGGER.at(Level.SEVERE).log("Refusing to delete %s - unexpected directory name", absolute); return false; } FileUtil.deleteDirectory(dir); return true; } catch (final IOException e) { UpdateService.LOGGER.at(Level.WARNING).log("Failed to delete %s: %s", dir, e.getMessage()); return false; } } @Nullable public static String readVersionFromJar(@Nonnull final Path jarPath) { try (final JarFile jarFile = new JarFile(jarPath.toFile())) { final Manifest manifest = jarFile.getManifest(); if (manifest == null) { final String s = null; jarFile.close(); return s; } final Attributes attrs = manifest.getMainAttributes(); final String vendorId = attrs.getValue("Implementation-Vendor-Id"); if (!"com.hypixel.hytale".equals(vendorId)) { final String s2 = null; jarFile.close(); return s2; } return attrs.getValue("Implementation-Version"); } catch (final IOException e) { UpdateService.LOGGER.at(Level.WARNING).log("Failed to read version from JAR: %s", e.getMessage()); return null; } } private static KeyedCodec externalKey(final String key, final Codec codec) { return new KeyedCodec(key, codec, false, true); } static { LOGGER = HytaleLogger.forEnclosingClass(); REQUEST_TIMEOUT = Duration.ofSeconds(30L); DOWNLOAD_TIMEOUT = Duration.ofMinutes(30L); STAGING_DIR = Path.of("..", new String[0]).resolve("updater").resolve("staging"); BACKUP_DIR = Path.of("..", new String[0]).resolve("updater").resolve("backup"); } record DownloadTask(CompletableFuture future, Thread thread) {} public static class VersionManifest { public String version; public String downloadUrl; public String sha256; public static final BuilderCodec CODEC; static { // // This method could not be decompiled. // // Original Bytecode: // // 2: invokedynamic BootstrapMethod #0, get:()Ljava/util/function/Supplier; // 7: invokestatic com/hypixel/hytale/codec/builder/BuilderCodec.builder:(Ljava/lang/Class;Ljava/util/function/Supplier;)Lcom/hypixel/hytale/codec/builder/BuilderCodec$Builder; // 10: ldc "version" // 12: getstatic com/hypixel/hytale/codec/Codec.STRING:Lcom/hypixel/hytale/codec/codecs/simple/StringCodec; // 15: invokestatic com/hypixel/hytale/server/core/update/UpdateService.externalKey:(Ljava/lang/String;Lcom/hypixel/hytale/codec/Codec;)Lcom/hypixel/hytale/codec/KeyedCodec; // 18: invokedynamic BootstrapMethod #1, accept:()Ljava/util/function/BiConsumer; // 23: invokedynamic BootstrapMethod #2, apply:()Ljava/util/function/Function; // 28: invokevirtual com/hypixel/hytale/codec/builder/BuilderCodec$Builder.append:(Lcom/hypixel/hytale/codec/KeyedCodec;Ljava/util/function/BiConsumer;Ljava/util/function/Function;)Lcom/hypixel/hytale/codec/builder/BuilderField$FieldBuilder; // 31: invokevirtual com/hypixel/hytale/codec/builder/BuilderField$FieldBuilder.add:()Lcom/hypixel/hytale/codec/builder/BuilderCodec$BuilderBase; // 34: checkcast Lcom/hypixel/hytale/codec/builder/BuilderCodec$Builder; // 37: ldc "download_url" // 39: getstatic com/hypixel/hytale/codec/Codec.STRING:Lcom/hypixel/hytale/codec/codecs/simple/StringCodec; // 42: invokestatic com/hypixel/hytale/server/core/update/UpdateService.externalKey:(Ljava/lang/String;Lcom/hypixel/hytale/codec/Codec;)Lcom/hypixel/hytale/codec/KeyedCodec; // 45: invokedynamic BootstrapMethod #3, accept:()Ljava/util/function/BiConsumer; // 50: invokedynamic BootstrapMethod #4, apply:()Ljava/util/function/Function; // 55: invokevirtual com/hypixel/hytale/codec/builder/BuilderCodec$Builder.append:(Lcom/hypixel/hytale/codec/KeyedCodec;Ljava/util/function/BiConsumer;Ljava/util/function/Function;)Lcom/hypixel/hytale/codec/builder/BuilderField$FieldBuilder; // 58: invokevirtual com/hypixel/hytale/codec/builder/BuilderField$FieldBuilder.add:()Lcom/hypixel/hytale/codec/builder/BuilderCodec$BuilderBase; // 61: checkcast Lcom/hypixel/hytale/codec/builder/BuilderCodec$Builder; // 64: ldc "sha256" // 66: getstatic com/hypixel/hytale/codec/Codec.STRING:Lcom/hypixel/hytale/codec/codecs/simple/StringCodec; // 69: invokestatic com/hypixel/hytale/server/core/update/UpdateService.externalKey:(Ljava/lang/String;Lcom/hypixel/hytale/codec/Codec;)Lcom/hypixel/hytale/codec/KeyedCodec; // 72: invokedynamic BootstrapMethod #5, accept:()Ljava/util/function/BiConsumer; // 77: invokedynamic BootstrapMethod #6, apply:()Ljava/util/function/Function; // 82: invokevirtual com/hypixel/hytale/codec/builder/BuilderCodec$Builder.append:(Lcom/hypixel/hytale/codec/KeyedCodec;Ljava/util/function/BiConsumer;Ljava/util/function/Function;)Lcom/hypixel/hytale/codec/builder/BuilderField$FieldBuilder; // 85: invokevirtual com/hypixel/hytale/codec/builder/BuilderField$FieldBuilder.add:()Lcom/hypixel/hytale/codec/builder/BuilderCodec$BuilderBase; // 88: checkcast Lcom/hypixel/hytale/codec/builder/BuilderCodec$Builder; // 91: invokevirtual com/hypixel/hytale/codec/builder/BuilderCodec$Builder.build:()Lcom/hypixel/hytale/codec/builder/BuilderCodec; // 94: putstatic com/hypixel/hytale/server/core/update/UpdateService$VersionManifest.CODEC:Lcom/hypixel/hytale/codec/builder/BuilderCodec; // 97: return // // The error that occurred was: // // java.lang.UnsupportedOperationException: The requested operation is not supported. // at com.strobel.util.ContractUtils.unsupported(ContractUtils.java:27) // at com.strobel.assembler.metadata.TypeReference.getRawType(TypeReference.java:284) // at com.strobel.assembler.metadata.TypeReference.getRawType(TypeReference.java:279) // at com.strobel.assembler.metadata.TypeReference.makeGenericType(TypeReference.java:154) // at com.strobel.assembler.metadata.TypeSubstitutionVisitor.visitParameterizedType(TypeSubstitutionVisitor.java:225) // at com.strobel.assembler.metadata.TypeSubstitutionVisitor.visitParameterizedType(TypeSubstitutionVisitor.java:25) // at com.strobel.assembler.metadata.ParameterizedType.accept(ParameterizedType.java:103) // at com.strobel.assembler.metadata.TypeSubstitutionVisitor.visit(TypeSubstitutionVisitor.java:40) // at com.strobel.assembler.metadata.TypeSubstitutionVisitor.visitParameterizedType(TypeSubstitutionVisitor.java:211) // at com.strobel.assembler.metadata.TypeSubstitutionVisitor.visitParameterizedType(TypeSubstitutionVisitor.java:25) // at com.strobel.assembler.metadata.ParameterizedType.accept(ParameterizedType.java:103) // at com.strobel.assembler.metadata.TypeSubstitutionVisitor.visit(TypeSubstitutionVisitor.java:40) // at com.strobel.assembler.metadata.TypeSubstitutionVisitor.visitMethod(TypeSubstitutionVisitor.java:314) // at com.strobel.decompiler.ast.TypeAnalysis.inferCall(TypeAnalysis.java:2611) // at com.strobel.decompiler.ast.TypeAnalysis.doInferTypeForExpression(TypeAnalysis.java:1040) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:815) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:790) // at com.strobel.decompiler.ast.TypeAnalysis.inferCall(TypeAnalysis.java:2689) // at com.strobel.decompiler.ast.TypeAnalysis.doInferTypeForExpression(TypeAnalysis.java:1040) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:815) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:782) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:778) // at com.strobel.decompiler.ast.TypeAnalysis.doInferTypeForExpression(TypeAnalysis.java:1510) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:815) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:790) // at com.strobel.decompiler.ast.TypeAnalysis.inferCall(TypeAnalysis.java:2689) // at com.strobel.decompiler.ast.TypeAnalysis.doInferTypeForExpression(TypeAnalysis.java:1040) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:815) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:790) // at com.strobel.decompiler.ast.TypeAnalysis.inferCall(TypeAnalysis.java:2689) // at com.strobel.decompiler.ast.TypeAnalysis.doInferTypeForExpression(TypeAnalysis.java:1040) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:815) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:782) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:778) // at com.strobel.decompiler.ast.TypeAnalysis.doInferTypeForExpression(TypeAnalysis.java:1510) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:815) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:790) // at com.strobel.decompiler.ast.TypeAnalysis.inferCall(TypeAnalysis.java:2689) // at com.strobel.decompiler.ast.TypeAnalysis.doInferTypeForExpression(TypeAnalysis.java:1040) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:815) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:782) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:778) // at com.strobel.decompiler.ast.TypeAnalysis.doInferTypeForExpression(TypeAnalysis.java:1083) // at com.strobel.decompiler.ast.TypeAnalysis.inferTypeForExpression(TypeAnalysis.java:815) // at com.strobel.decompiler.ast.TypeAnalysis.runInference(TypeAnalysis.java:684) // at com.strobel.decompiler.ast.TypeAnalysis.runInference(TypeAnalysis.java:667) // at com.strobel.decompiler.ast.TypeAnalysis.runInference(TypeAnalysis.java:373) // at com.strobel.decompiler.ast.TypeAnalysis.run(TypeAnalysis.java:95) // at com.strobel.decompiler.ast.AstOptimizer.optimize(AstOptimizer.java:344) // at com.strobel.decompiler.ast.AstOptimizer.optimize(AstOptimizer.java:42) // at com.strobel.decompiler.languages.java.ast.AstMethodBodyBuilder.createMethodBody(AstMethodBodyBuilder.java:206) // at com.strobel.decompiler.languages.java.ast.AstMethodBodyBuilder.createMethodBody(AstMethodBodyBuilder.java:93) // at com.strobel.decompiler.languages.java.ast.AstBuilder.createMethodBody(AstBuilder.java:868) // at com.strobel.decompiler.languages.java.ast.AstBuilder.createMethod(AstBuilder.java:761) // at com.strobel.decompiler.languages.java.ast.AstBuilder.addTypeMembers(AstBuilder.java:638) // at com.strobel.decompiler.languages.java.ast.AstBuilder.createTypeCore(AstBuilder.java:605) // at com.strobel.decompiler.languages.java.ast.AstBuilder.createTypeNoCache(AstBuilder.java:195) // at com.strobel.decompiler.languages.java.ast.AstBuilder.addTypeMembers(AstBuilder.java:662) // at com.strobel.decompiler.languages.java.ast.AstBuilder.createTypeCore(AstBuilder.java:605) // at com.strobel.decompiler.languages.java.ast.AstBuilder.createTypeNoCache(AstBuilder.java:195) // at com.strobel.decompiler.languages.java.ast.AstBuilder.createType(AstBuilder.java:162) // at com.strobel.decompiler.languages.java.ast.AstBuilder.addType(AstBuilder.java:137) // at com.strobel.decompiler.languages.java.JavaLanguage.buildAst(JavaLanguage.java:71) // at com.strobel.decompiler.languages.java.JavaLanguage.decompileType(JavaLanguage.java:59) // at com.strobel.decompiler.DecompilerDriver.decompileType(DecompilerDriver.java:333) // at com.strobel.decompiler.DecompilerDriver.decompileJar(DecompilerDriver.java:254) // at com.strobel.decompiler.DecompilerDriver.main(DecompilerDriver.java:129) // throw new IllegalStateException("An error occurred while decompiling this method."); } } private static class SignedUrlResponse { public String url; public static final BuilderCodec CODEC; static { CODEC = BuilderCodec.builder(SignedUrlResponse.class, SignedUrlResponse::new).append((KeyedCodec)UpdateService.externalKey("url", (Codec)Codec.STRING), (r, v) -> r.url = v, r -> r.url).add().build(); } } @FunctionalInterface public interface ProgressCallback { void onProgress(final int p0, final long p1, final long p2); } }