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ASF GitHub Bot commented on THRIFT-4476: ---------------------------------------- Github user jeking3 commented on the issue: https://github.com/apache/thrift/pull/1496 Thanks for dealing with the relatively unstable CI. Our project has support for 25 languages, so needless to say without a fixed build environment (which is impossible, since packages change over time), the build becomes unstable pretty quickly without constant TLC. Please squash this to a single commit to prepare it for merge. In addition, I will need to make sure this test passes: ``` =============================================================================== *** Following 1 failures were unexpected ***: If it is introduced by you, please fix it before submitting the code. =============================================================================== server-client: protocol: transport: result: hs-csharp json framed-ip failure(1) =============================================================================== Unexpected failures are logged to test/log/unexpected_failures.log You can browse results at: file:///thrift/src/test/index.html # If you use Chrome, run: # cd /thrift/src # python -m http.server 8001 # then browse: # http://localhost:8001/test/ Full log for each test is here: test/log/server_client_protocol_transport_client.log test/log/server_client_protocol_transport_server.log 1 failed of 3948 tests in total. Test execution took 1966.1 seconds. Wed Mar 14 13:26:25 2018 ``` > Typecasting problem on list items > --------------------------------- > > Key: THRIFT-4476 > URL: https://issues.apache.org/jira/browse/THRIFT-4476 > Project: Thrift > Issue Type: Bug > Components: Java - Compiler > Affects Versions: 0.11.0 > Reporter: Ozan Can Altiok > Priority: Major > > I was trying to add the following into a thrift interface file. > {{const list<double> timeCoefficients = [24, 60, 60, 1000, 1000, 1000]}} > With the definition given above the {{.thrift}} file compiled properly. > However, I noticed that in Python, the items in {{timeCoefficients}} are > considered to be integer although the list has been defined to include items > of {{double}} type. Then I modified the definition as given below to make > sure all the items are of type {{double}}. > {{const list<double> timeCoefficients = [24.0, 60.0, 60.0, 1000.0, 1000.0, > 1000.0]}} > After the change, I ran into the following error during compilation. > {{[ERROR] .../TimeCoefficients.java:[402,48] error: no suitable method found > for add(int)}} > {{[ERROR] method Collection.add(Double) is not applicable}} > {{[ERROR] (argument mismatch; int cannot be converted to Double)}} > {{[ERROR] method List.add(Double) is not applicable}} > {{[ERROR] (argument mismatch; int cannot be converted to Double)}} > Next, I changed the line as follows and the compilation became successful. > {{const list<double> timeCoefficients = [24.1, 60.1, 60.1, 1000.1, 1000.1, > 1000.1]}} > When I reviewed the generated Java source files, I discovered that > {{const list<double> timeCoefficients = [24, 60, 60, 1000, 1000, 1000]}} > compiles to > {{public static final java.util.List<java.lang.Double> timeCoefficients = new > java.util.ArrayList<java.lang.Double>();}} > {{static {}} > {{ timeCoefficients.add((double)24);}} > {{ timeCoefficients.add((double)60);}} > {{ timeCoefficients.add((double)60);}} > {{ timeCoefficients.add((double)1000);}} > {{ timeCoefficients.add((double)1000);}} > {{ timeCoefficients.add((double)1000);}} > {{}}} > whilst > {{const list<double> timeCoefficients = [24.0, 60.0, 60.0, 1000.0, 1000.0, > 1000.0]}} > compiles to > {{public static final java.util.List<java.lang.Double> timeCoefficients = new > java.util.ArrayList<java.lang.Double>();}} > {{static {}} > {{ timeCoefficients.add(24);}} > {{ timeCoefficients.add(60);}} > {{ timeCoefficients.add(60);}} > {{ timeCoefficients.add(1000);}} > {{ timeCoefficients.add(1000);}} > {{ timeCoefficients.add(1000);}} > {{}}} > which leads to an error. > When I modified this line as follows > {{const list<double> timeCoefficients = [24.1, 60.1, 60.1, 1000.1, 1000.1, > 1000.1]}} > this line compiled to > {{public static final java.util.List<java.lang.Double> timeCoefficients = new > java.util.ArrayList<java.lang.Double>();}} > {{static {}} > {{ timeCoefficients.add(24.1);}} > {{ timeCoefficients.add(60.1);}} > {{ timeCoefficients.add(60.1);}} > {{ timeCoefficients.add(1000.1);}} > {{ timeCoefficients.add(1000.1);}} > {{ timeCoefficients.add(1000.1);}} > {{}}} > My guess is that, even if I put {{.0}} at the end of each numeric constant, > on the Java side, Thrift compiler considers them to be {{double}} and does no > typecasts. However, the {{.0}} s are getting lost somewhere and the items > become integers in the generated Java code. Thus, when it comes to populating > the array, Java cannot succeed. {{Double}} s cannot be unboxed to integer and > Java thinks {{int}} and {{Double}} are not related. -- This message was sent by Atlassian JIRA (v7.6.3#76005)