fix(bin): add missing JAR directory to windows batch script

[aogzpa]

What

Fixed the windows batch file in a way that Confluent Community Edition kafka works without docker. Loop through shared folders to include the different JARs to %CLASSPATH% leveraging :concat jump goto label.

See also
confluentinc/schema-registry#3553

Checklist

• Contains customer facing changes? Including API/behavior changes
• Is this change gated behind feature flag(s)?
  • List the LD flags needed to be set to enable this change
• Did you add sufficient unit test and/or integration test coverage for this PR?
  • If not, please explain why it is not required
• Does this change require modifying existing system tests or adding new system tests?
  • If so, include tracking information for the system test changes

Test & Review

Open before and after sections to check console output.

Zookeeper

Before:

PS C:\confluent-7.8.0\bin\windows> .\zookeeper-server-start.bat ..\..\etc\kafka\zookeeper.properties
Classpath is empty. Please build the project first e.g. by running 'gradlew jarAll'

After:

PS C:\confluent-7.8.0\bin\windows> .\zookeeper-server-start.bat ..\..\etc\kafka\zookeeper.properties
[2025-02-08 00:19:18,981] INFO Reading configuration from: ..\..\etc\kafka\zookeeper.properties (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,984] WARN ..\..\etc\kafka\zookeeper.properties is relative. Prepend .\ to indicate that you're sure! (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,985] WARN \tmp\zookeeper is relative. Prepend .\ to indicate that you're sure! (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,987] INFO clientPortAddress is 0.0.0.0:2181 (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,988] INFO secureClientPort is not set (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,988] INFO observerMasterPort is not set (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,988] INFO metricsProvider.className is org.apache.zookeeper.metrics.impl.DefaultMetricsProvider (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,990] INFO autopurge.snapRetainCount set to 3 (org.apache.zookeeper.server.DatadirCleanupManager)
[2025-02-08 00:19:18,990] INFO autopurge.purgeInterval set to 0 (org.apache.zookeeper.server.DatadirCleanupManager)
[2025-02-08 00:19:18,990] INFO Purge task is not scheduled. (org.apache.zookeeper.server.DatadirCleanupManager)
[2025-02-08 00:19:18,990] WARN Either no config or no quorum defined in config, running in standalone mode (org.apache.zookeeper.server.quorum.QuorumPeerMain)
[2025-02-08 00:19:18,991] INFO Log4j 1.2 jmx support not found; jmx disabled. (org.apache.zookeeper.jmx.ManagedUtil)
[2025-02-08 00:19:18,992] INFO Reading configuration from: ..\..\etc\kafka\zookeeper.properties (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,993] WARN ..\..\etc\kafka\zookeeper.properties is relative. Prepend .\ to indicate that you're sure! (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,994] WARN \tmp\zookeeper is relative. Prepend .\ to indicate that you're sure! (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,994] INFO clientPortAddress is 0.0.0.0:2181 (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,994] INFO secureClientPort is not set (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,994] INFO observerMasterPort is not set (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,994] INFO metricsProvider.className is org.apache.zookeeper.metrics.impl.DefaultMetricsProvider (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2025-02-08 00:19:18,995] INFO Starting server (org.apache.zookeeper.server.ZooKeeperServerMain)
[2025-02-08 00:19:19,008] INFO ServerMetrics initialized with provider org.apache.zookeeper.metrics.impl.DefaultMetricsProvider@3af9c5b7 (org.apache.zookeeper.server.ServerMetrics)
[2025-02-08 00:19:19,010] INFO ACL digest algorithm is: SHA1 (org.apache.zookeeper.server.auth.DigestAuthenticationProvider)
[2025-02-08 00:19:19,010] INFO zookeeper.DigestAuthenticationProvider.enabled = true (org.apache.zookeeper.server.auth.DigestAuthenticationProvider)
[2025-02-08 00:19:19,012] INFO zookeeper.snapshot.trust.empty : false (org.apache.zookeeper.server.persistence.FileTxnSnapLog)
[2025-02-08 00:19:19,019] INFO  (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,020] INFO   ______                  _                                           (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,020] INFO  |___  /                 | |                                          (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,020] INFO     / /    ___     ___   | | __   ___    ___   _ __     ___   _ __    (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,020] INFO    / /    / _ \   / _ \  | |/ /  / _ \  / _ \ | '_ \   / _ \ | '__| (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,020] INFO   / /__  | (_) | | (_) | |   <  |  __/ |  __/ | |_) | |  __/ | |     (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,020] INFO  /_____|  \___/   \___/  |_|\_\  \___|  \___| | .__/   \___| |_| (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,021] INFO                                               | |                      (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,021] INFO                                               |_|                      (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,021] INFO  (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,024] INFO Server environment:zookeeper.version=3.8.4-9316c2a7a97e1666d8f4593f34dd6fc36ecc436c, built on 2024-02-12 22:16 UTC (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,025] INFO Server environment:java.version=21.0.6 (org.apache.zookeeper.server.ZooKeeperServer)
[2025-02-08 00:19:19,025] INFO Server environment:java.vendor=Eclipse Adoptium (org.apache.zookeeper.server.ZooKeeperServer)
[...]

Kafka

Before:

PS C:\confluent-7.8.0\bin\windows> .\kafka-server-start.bat ..\..\etc\kafka\server.properties
Classpath is empty. Please build the project first e.g. by running 'gradlew jarAll'

After:

PS C:\confluent-7.8.0\bin\windows> .\kafka-server-start.bat ..\..\etc\kafka\server.properties
[2025-02-08 00:27:05,708] INFO Registered kafka:type=kafka.Log4jController MBean (kafka.utils.Log4jControllerRegistration$)
[2025-02-08 00:27:05,914] INFO Setting -D jdk.tls.rejectClientInitiatedRenegotiation=true to disable client-initiated TLS renegotiation (org.apache.zookeeper.common.X509Util)
[2025-02-08 00:27:05,915] INFO RemoteLogManagerConfig values: 
        log.local.retention.bytes = -2
        log.local.retention.ms = -2
        remote.fetch.max.wait.ms = 500
        remote.log.index.file.cache.total.size.bytes = 1073741824
        remote.log.manager.copier.thread.pool.size = 10
        remote.log.manager.copy.max.bytes.per.second = 9223372036854775807
        remote.log.manager.copy.quota.window.num = 11
        remote.log.manager.copy.quota.window.size.seconds = 1
        remote.log.manager.expiration.thread.pool.size = 10
        remote.log.manager.fetch.max.bytes.per.second = 9223372036854775807
        remote.log.manager.fetch.quota.window.num = 11
        remote.log.manager.fetch.quota.window.size.seconds = 1
        remote.log.manager.task.interval.ms = 30000
        remote.log.manager.task.retry.backoff.max.ms = 30000
        remote.log.manager.task.retry.backoff.ms = 500
        remote.log.manager.task.retry.jitter = 0.2
        remote.log.manager.thread.pool.size = 10
        remote.log.metadata.custom.metadata.max.bytes = 128
        remote.log.metadata.manager.class.name = org.apache.kafka.server.log.remote.metadata.storage.TopicBasedRemoteLogMetadataManager
        remote.log.metadata.manager.class.path = null
        remote.log.metadata.manager.impl.prefix = rlmm.config.
        remote.log.metadata.manager.listener.name = null
        remote.log.reader.max.pending.tasks = 100
        remote.log.reader.threads = 10
        remote.log.storage.manager.class.name = null
        remote.log.storage.manager.class.path = null
        remote.log.storage.manager.impl.prefix = rsm.config.
        remote.log.storage.system.enable = false
 (org.apache.kafka.server.log.remote.storage.RemoteLogManagerConfig)
[2025-02-08 00:27:05,997] INFO starting (kafka.server.KafkaServer)
[2025-02-08 00:27:05,998] INFO Connecting to zookeeper on localhost:2181 (kafka.server.KafkaServer)
[2025-02-08 00:27:06,007] INFO [ZooKeeperClient Kafka server] Initializing a new session to localhost:2181. (kafka.zookeeper.ZooKeeperClient)
[2025-02-08 00:27:06,012] INFO Client environment:zookeeper.version=3.8.4-9316c2a7a97e1666d8f4593f34dd6fc36ecc436c, built on 2024-02-12 22:16 UTC (org.apache.zookeeper.ZooKeeper)
[2025-02-08 00:27:06,013] INFO Client environment:java.version=21.0.6 (org.apache.zookeeper.ZooKeeper)
[2025-02-08 00:27:06,013] INFO Client environment:java.vendor=Eclipse Adoptium (org.apache.zookeeper.ZooKeeper)
[...]