chore: Remove Browser

Signed-off-by: Timo Brandstätter <[email protected]>

Author: timo0

hedera-node/hedera-app/src/main/java/com/hedera/node/app/ServicesMain.java

@@ -53,7 +53,6 @@
 import com.swirlds.config.extensions.sources.SystemEnvironmentConfigSource;
 import com.swirlds.config.extensions.sources.SystemPropertiesConfigSource;
 import com.swirlds.metrics.api.Metrics;
-import com.swirlds.platform.Browser;
 import com.swirlds.platform.CommandLineArgs;
 import com.swirlds.platform.ParameterProvider;
 import com.swirlds.platform.builder.PlatformBuilder;
@@ -225,8 +224,7 @@ public StateLifecycleManager getStateLifecycleManager() {
     }
 
     /**
-     * Launches Services directly, without use of the "app browser" from {@link Browser}. The
-     * approximate startup sequence is:
+     * Launches Services: the approximate startup sequence is:
      * <ol>
      *     <li>Scan the classpath for {@link RuntimeConstructable} classes,
      *     registering their no-op constructors as the default factories for their

hedera-node/hedera-app/src/main/java/com/hedera/node/app/package-info.java

@@ -2,21 +2,15 @@
 /**
  * Main package for the Hedera node application.
  *
- * <p>The Hashgraph Platform today follows a "container-managed" model, where applications extend from
- * {@link com.swirlds.platform.system.SwirldMain} to define their main entry point, much like a Java Applet would extend
- * from {@code Applet}. An application also extends from {@link com.swirlds.state.merkle.VirtualMapState} to define its
- * Merkle tree for holding state. The platform then dynamically looks up and creates these objects. The platform is thus
- * in charge of lifecycle management.
+ * <p>The Hashgraph Platform uses a "library" model, where the platform exposes
+ * a {@link com.swirlds.platform.builder.PlatformBuilder}, and the application is responsible for
+ * managing the lifecycle of the platform. The platform is a library that the application uses to
+ * build a node. This makes testing much easier and the code easier to understand.
  *
- * <p>In the future, the Hashgraph Platform will instead use a "library" model, where the platform exposes
- * a {@code PlatformBuilder}, and the application is responsible for managing the lifecycle of the platform. The
- * platform will then be a library that the application can use to build a node. This makes testing much easier and the
- * code easier to understand.
+ * <p>The main entry point for the application is {@link com.hedera.node.app.ServicesMain#main(String...)},
+ * which builds and starts the platform using {@link com.swirlds.platform.builder.PlatformBuilder}.
+ * The {@link com.hedera.node.app.Hedera} singleton centralizes nearly all the setup and runtime logic
+ * for the application.
  *
- * <p>The main entry point for the application today is {@link com.swirlds.platform.Browser}, which is
- * configured to find and load {@link com.hedera.node.app.ServicesMain} as the
- * {@link com.swirlds.platform.system.SwirldMain} of the application.
- *
- * <p><img src="startup-flow.png" alt="Startup Flow">
  */
 package com.hedera.node.app;

hedera-node/hedera-app/src/main/java/com/hedera/node/app/startup-flow.png

@@ -61,7 +61,6 @@ public void onStateInitialized(
         hedera.onStateInitialized(state, platform, trigger);
     }
 
-    @Override
     public void onUpdateWeight(
             @NonNull final MerkleNodeState stateRoot,
             @NonNull final AddressBook configAddressBook,

hedera-node/hedera-app/src/main/java/com/hedera/node/app/state/ConsensusStateEventHandlerImpl.java

@@ -265,8 +265,7 @@ public void onStateInitialized(
     /**
      * {@inheritDoc}
      */
-    @Override
-    public void onUpdateWeight(
+    private void onUpdateWeight(
             @NonNull final VirtualMapState state,
             @NonNull final AddressBook configAddressBook,
             @NonNull final PlatformContext context) {

platform-sdk/consensus-otter-tests/src/testFixtures/java/org/hiero/otter/fixtures/app/OtterApp.java

@@ -20,7 +20,7 @@
 import org.hiero.consensus.model.roster.AddressBook;
 
 /**
- * This class only contains one method that was extracted from the {@link Browser} class.
+ * This class only contains one method that was extracted from the Browser class.
  *
  * @deprecated will be replaced by the {@link com.swirlds.config.api.Configuration} API in near future once the
  * config.txt has been migrated to the regular config API. If you need to use this class please try to do as less static

platform-sdk/swirlds-platform-core/src/main/java/com/swirlds/platform/ApplicationDefinitionLoader.java

@@ -3,7 +3,6 @@
 
 import com.hedera.hapi.node.base.SemanticVersion;
 import com.hedera.hapi.platform.event.StateSignatureTransaction;
-import com.swirlds.common.context.PlatformContext;
 import com.swirlds.platform.system.InitTrigger;
 import com.swirlds.platform.system.Platform;
 import com.swirlds.state.MerkleNodeState;
@@ -12,7 +11,6 @@
 import java.util.function.Consumer;
 import org.hiero.consensus.model.event.Event;
 import org.hiero.consensus.model.hashgraph.Round;
-import org.hiero.consensus.model.roster.AddressBook;
 import org.hiero.consensus.model.transaction.ScopedSystemTransaction;
 
 /**
@@ -69,16 +67,6 @@ void onStateInitialized(
             @NonNull InitTrigger trigger,
             @Nullable SemanticVersion previousVersion);
 
-    /**
-     * Called exclusively by platform test apps to update the weight of the address book. Should be removed
-     * as these apps are refactored to stop using {@link com.swirlds.platform.Browser}.
-     * @param state the working state of the network
-     * @param configAddressBook the address book used to configure the network
-     * @param context the current platform context
-     */
-    @Deprecated(forRemoval = true)
-    void onUpdateWeight(@NonNull T state, @NonNull AddressBook configAddressBook, @NonNull PlatformContext context);
-
     /**
      * Called when event stream recovery finishes.
      *