初始化 Couchbase java 客户端时出现内存不足错误

Question

初始化 Couchbase Java 客户端时遇到内存不足错误。该问题发生在 Gradle 构建中运行测试用例的上下文中。运行单个测试用例时似乎不会发生这种情况。这似乎是在运行构建中的所有测试用例时发生的。该错误发生在 MacOS 上，而不是 Linux 构建机器上

环境

JVM = 16 (OpenJDK)
OS = MacOS Monterey
task = Gradle build 
jvm memory settings = -Xmx8000m" "-Xms512m" "-XX:MaxDirectMemorySize=2000m"

StackTrace -

Caused by: java.lang.OutOfMemoryError: Cannot reserve 16384 bytes of direct buffer memory (allocated: 536861104, limit: 536870912)
    at java.base/java.nio.Bits.reserveMemory(Bits.java:178)
    at java.base/java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:121)
    at java.base/java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:330)
    at com.couchbase.client.core.deps.io.netty.channel.unix.Buffer.allocateDirectWithNativeOrder(Buffer.java:40)
    at com.couchbase.client.core.deps.io.netty.channel.unix.IovArray.<init>(IovArray.java:72)
    at com.couchbase.client.core.deps.io.netty.channel.kqueue.KQueueEventLoop.<init>(KQueueEventLoop.java:62)
    at com.couchbase.client.core.deps.io.netty.channel.kqueue.KQueueEventLoopGroup.newChild(KQueueEventLoopGroup.java:151)
    at com.couchbase.client.core.deps.io.netty.channel.kqueue.KQueueEventLoopGroup.newChild(KQueueEventLoopGroup.java:32)
    at com.couchbase.client.core.deps.io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:84)
    at com.couchbase.client.core.deps.io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:60)
    at com.couchbase.client.core.deps.io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:49)
    at com.couchbase.client.core.deps.io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:59)
    at com.couchbase.client.core.deps.io.netty.channel.kqueue.KQueueEventLoopGroup.<init>(KQueueEventLoopGroup.java:110)
    at com.couchbase.client.core.deps.io.netty.channel.kqueue.KQueueEventLoopGroup.<init>(KQueueEventLoopGroup.java:97)
    at com.couchbase.client.core.deps.io.netty.channel.kqueue.KQueueEventLoopGroup.<init>(KQueueEventLoopGroup.java:73)
    at com.couchbase.client.core.env.IoEnvironment.createEventLoopGroup(IoEnvironment.java:476)
    at com.couchbase.client.core.env.IoEnvironment.<init>(IoEnvironment.java:285)
    at com.couchbase.client.core.env.IoEnvironment.<init>(IoEnvironment.java:66)
    at com.couchbase.client.core.env.IoEnvironment$Builder.build(IoEnvironment.java:674)
    at com.couchbase.client.core.env.CoreEnvironment.<init>(CoreEnvironment.java:153)
    at com.couchbase.client.java.env.ClusterEnvironment.<init>(ClusterEnvironment.java:53)
    at com.couchbase.client.java.env.ClusterEnvironment.<init>(ClusterEnvironment.java:46)
    at com.couchbase.client.java.env.ClusterEnvironment$Builder.build(ClusterEnvironment.java:213)