VerifyError on Datastore Protobuf

[nevillelyh]

Could be JDK 8 related.

java.lang.VerifyError: Bad type on operand stack Exception Details: Location: com/google/datastore/v1/Value$Builder.mergeTimestampValue(Lcom/google/protobuf/Timestamp;)Lcom/google/datastore/v1/Value$Builder; @76: invokevirtual Reason: Type 'com/google/protobuf/Timestamp' (current frame, stack[1]) is not assignable to 'com/google/protobuf/GeneratedMessage' Current Frame: bci: @76 flags: { } locals: { 'com/google/datastore/v1/Value$Builder', 'com/google/protobuf/Timestamp' } stack: { 'com/google/protobuf/SingleFieldBuilder', 'com/google/protobuf/Timestamp' } Bytecode: 0x0000000: 2ab4 0017 c700 3a2a b400 0910 0aa0 0025 0x0000010: 2ab4 0010 b800 58a5 001b 2a2a b400 10c0 0x0000020: 0057 b800 5c2b b600 5db6 005e b500 10a7 0x0000030: 0008 2a2b b500 102a b600 37a7 001e 2ab4 0x0000040: 0009 100a a000 0c2a b400 172b b600 5f57 0x0000050: 2ab4 0017 2bb6 005a 572a 100a b500 092a 0x0000060: b0 Stackmap Table: same_frame(@50) same_frame(@55) same_frame(@62) same_frame(@80) same_frame(@89)

[ravwojdyla]

googleapis/google-cloud-java#1239 might be related

[nevillelyh]

Turns out protobuf-generic pulls in the protobuf-java 3.1.0 dependency. Timestamp now extends GeneratedMessageV3 instead of GeneratedMessage in 3.0.0-beta-1 which causes the issue.

[nevillelyh]

b69d634 should restore protobuf-java dependency to 3.0.0-beta-1. Let's see if this fixes the issue.

[nevillelyh]

The affected job runs successfully now. The next release 0.2.7 will fix this properly. Closing this.