[BEAM-14167] Jamm exceptions "JVM prevents jamm from accessing subgraph - cache sizes may be underestimated"

• Type: Bug
• Status: Resolved
• Priority: P2
• Resolution: Duplicate
• Fix Version/s: Not applicable
• Component/s: sdk-java-core
• Labels: Java11
• Assignee: Kiley Sok
• Reporter: Sam Whittle
• Created: 24/Mar/22 13:50
• Updated: 28/Mar/22 19:54
• Resolved: 28/Mar/22 19:54

Description

Can we fix these somehow? At a minimum we should catch them when weighing and not cache the state.

"java.lang.RuntimeException: java.lang.RuntimeException: java.lang.reflect.InaccessibleObjectException: Unable to make field private final byte[] java.lang.String.value accessible: module java.base does not "opens java.lang" to unnamed module @39529185
at org.github.jamm.MemoryMeterBase.measureDeep(MemoryMeterBase.java:129)
at org.apache.beam.fn.harness.Caches.weigh(Caches.java:64)
at org.apache.beam.fn.harness.Caches.findWeight(Caches.java:202)
at org.apache.beam.fn.harness.Caches.access$600(Caches.java:46)
at org.apache.beam.fn.harness.Caches$CompositeKey.<init>(Caches.java:363)
at org.apache.beam.fn.harness.Caches$CompositeKey.<init>(Caches.java:355)
at org.apache.beam.fn.harness.Caches$CompositeKeyPrefix.valueKey(Caches.java:323)
at org.apache.beam.fn.harness.Caches$SubCache.computeIfAbsent(Caches.java:259)
at org.apache.beam.fn.harness.FnHarness$1.apply(FnHarness.java:259)
at org.apache.beam.fn.harness.FnHarness$1.apply(FnHarness.java:252)
at org.apache.beam.fn.harness.control.ProcessBundleHandler.createBundleProcessor(ProcessBundleHandler.java:700)
at org.apache.beam.fn.harness.control.ProcessBundleHandler.lambda$processBundle$0(ProcessBundleHandler.java:490)
at org.apache.beam.fn.harness.control.ProcessBundleHandler$BundleProcessorCache.get(ProcessBundleHandler.java:895)
at org.apache.beam.fn.harness.control.ProcessBundleHandler.processBundle(ProcessBundleHandler.java:486)
at org.apache.beam.fn.harness.control.BeamFnControlClient.delegateOnInstructionRequestType(BeamFnControlClient.java:151)
at org.apache.beam.fn.harness.control.BeamFnControlClient$InboundObserver.lambda$onNext$0(BeamFnControlClient.java:116)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.lang.RuntimeException: java.lang.reflect.InaccessibleObjectException: Unable to make field private final byte[] java.lang.String.value accessible: module java.base does not "opens java.lang" to unnamed module @39529185
at org.github.jamm.MemoryMeterBase.declaredClassFields0(MemoryMeterBase.java:246)
at org.github.jamm.MemoryMeterBase.access$000(MemoryMeterBase.java:15)
at org.github.jamm.MemoryMeterBase$1.computeValue(MemoryMeterBase.java:24)
at org.github.jamm.MemoryMeterBase$1.computeValue(MemoryMeterBase.java:20)
at java.base/java.lang.ClassValue.getFromHashMap(ClassValue.java:228)
at java.base/java.lang.ClassValue.getFromBackup(ClassValue.java:210)
at java.base/java.lang.ClassValue.get(ClassValue.java:116)
at org.github.jamm.MemoryMeterBase.declaredClassFields(MemoryMeterBase.java:219)
at org.github.jamm.MemoryMeterBase.measureDeep(MemoryMeterBase.java:119)
... 18 more
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field private final byte[] java.lang.String.value accessible: module java.base does not "opens java.lang" to unnamed module @39529185
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:178)
at java.base/java.lang.reflect.Field.setAccessible(Field.java:172)
at org.github.jamm.MemoryMeterBase.declaredClassFields0(MemoryMeterBase.java:241)
... 26 more
"

Issue Links

• duplicates: BEAM-13695 Provide more accurate size estimates for cache objects in Java 17