xuyicheng1995 opened a new issue, #4475:
URL: https://github.com/apache/shenyu/issues/4475
### Is there an existing issue for this?
- [X] I have searched the existing issues
### Current Behavior
when i use System.gc(), no memory leaked
### Expected Behavior
memory leaked
### Steps To Reproduce
public class TestMemoryLeak {
// 1m内存
private static final int M_1 = 1 * 1024 * 1024;
public static void main(String[] args) throws InterruptedException,
IOException {
System.in.read();
try {
mswtMapTest();
} catch (Exception e) {
e.printStackTrace();
}
System.gc();
TimeUnit.SECONDS.sleep(Long.MAX_VALUE);
}
public static void mswtMapTest() {
for (int i = 0; i < 10; i++) {
System.gc();
MemorySafeWindowTinyLFUMap<String, Byte[]> map = new
MemorySafeWindowTinyLFUMap<>(1, 100);
map.put(String.valueOf(i), new Byte[M_1 * 2]);
// 手动GC
}
}
public static void commonMapTest() {
for (int i = 0; i < 10; i++) {
System.gc();
Map<String, Byte[]> map = new HashMap<>();
map.put(String.valueOf(i), new Byte[M_1 * 2]);
// 手动GC
System.gc();
}
}
}
### Environment
```markdown
ShenYu version(s):
```
### Debug logs
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at
org.apache.shenyu.common.cache.TestMemoryLeak.mswtMapTest(TestMemoryLeak.java:44)
at
org.apache.shenyu.common.cache.TestMemoryLeak.main(TestMemoryLeak.java:32)
### Anything else?
MemorySafeWindowTinyLFUMap hold a static reference ALL, every reference of
MemorySafeWindowTinyLFUMap will be always hold by the reference, and may cause
a memory leak
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