java - 将 Map keySet 转换为 String 数组时出现 OOM 错误 - Android

Question

我有以下 util 类

class Util {
  private static Map<String, String> params;

  public static String getSignedUrl(Context context) {
    params= null; // reset previous instance
    params= new HashMap<>();
    ...
    addDefaultParams();
    addCustomParams();
    String signedUrl = getSignedUrl();
    ....
    return signedUrl;
  }

  private static String getSignedUrl() {
     String[] keyArray = params.keySet().toArray(new String[0]); // OOM error here!
     .....
     return signedUrl;
  } 

  private static void addDefaultParams() {
    //add some default params
    params.add(key, value);
  }

  private static void addCustomParams() {
    //add some custom params
    params.add(key, value);
  }

}

从下面行的firebase堆栈跟踪导致OutOfMemoryError

String[] keyArray = params.keySet().toArray(new String[0]);

是因为params是静态字段吗？但是我正在重置以前的实例，params所以我不确定为什么这会导致 OOM 问题。

对此的任何帮助将不胜感激。提前致谢！

编辑 堆栈跟踪

Fatal Exception: java.lang.OutOfMemoryError
Failed to allocate a 186909524 byte allocation with 16777216 free bytes and 262MB until OOM
java.lang.reflect.Array.createObjectArray (Array.java)
java.util.AbstractCollection.toArray (AbstractCollection.java:198)
.......
.......
java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1133)
java.lang.Thread.run (Thread.java:760)

标签： javaandroidperformancehashmapout-of-memory