e5283f5ed5
### What changes were proposed in this pull request?
Improve exception handling in the Platform initialization, where it attempts to assess whether reflection is possible to modify DirectByteBuffer. This can apparently fail in more cases on Java 9+ than are currently handled, whereas Spark can continue without reflection if needed.
More detailed comments on the change inline.
### Why are the changes needed?
This exception seems to be possible and fails startup:
```
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make private java.nio.DirectByteBuffer(long,int) accessible: module java.base does not "opens java.nio" to unnamed module 71e9ddb4
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
at java.base/java.lang.reflect.Constructor.checkCanSetAccessible(Constructor.java:188)
at java.base/java.lang.reflect.Constructor.setAccessible(Constructor.java:181)
at org.apache.spark.unsafe.Platform.<clinit>(Platform.java:56)
```
### Does this PR introduce _any_ user-facing change?
Should strictly allow Spark to continue in more cases.
### How was this patch tested?
Existing tests.
Closes #33947 from srowen/SPARK-36704.
Authored-by: Sean Owen <srowen@gmail.com>
Signed-off-by: Sean Owen <srowen@gmail.com>
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| kvstore | ||
| network-common | ||
| network-shuffle | ||
| network-yarn | ||
| sketch | ||
| tags | ||
| unsafe | ||