Status: New
Owner: [email protected]
Labels: Type-Defect Priority-Medium
New issue 210 by aantono: Broken backwards compatibility of protobuf-java
library between 2.0.x and 2.3.x
http://code.google.com/p/protobuf/issues/detail?id=210
What steps will reproduce the problem?
1. Generate java sources from any proto file using protoc 2.0.3
2. Compile the generates source files using protobuf-java lib 2.0.3 and
create a model jar
3. Use the compiled model jar in a runtime environment with protobuf-java
2.3.0
What is the expected output? What do you see instead?
It is expected that the runtime would succeed instead of exploding with an
exception due to method signature changes in
Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(...)
What version of the product are you using? On what operating system?
CentOS 5 with protobuf 2.0.3 and 2.3.0
Please provide any additional information below.
java.lang.NoSuchMethodError:
com.google.protobuf.Descriptors$FileDescriptor.internalBuildGeneratedFileFrom(Ljava/lang/String;[Lcom/google/protobuf/Descriptors$FileDescriptor;Lcom/google/protobuf/Descriptors$FileDescriptor$InternalDescriptorAssigner;)V
The change was made to com.google.protobuf.Descriptors.java in r189
http://code.google.com/p/protobuf/source/diff?spec=svn189&r=189&format=side&path=/trunk/java/src/main/java/com/google/protobuf/Descriptors.java
Suggested fix is to add an old method back as an overload and just pass it
to the new signature by wrapping the single String into a
String[]{descriptorData} to preserve backwards compatibility with library
artifacts that were compiled against 2.0.x previously.
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