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From "James Moore (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MSHADE-260) shading does not rewrite Lambda deseriailzers
Date Fri, 01 Sep 2017 18:44:00 GMT
James Moore created MSHADE-260:
----------------------------------

             Summary: shading does not rewrite Lambda deseriailzers
                 Key: MSHADE-260
                 URL: https://issues.apache.org/jira/browse/MSHADE-260
             Project: Maven Shade Plugin
          Issue Type: Bug
    Affects Versions: 3.1.0, 3.0.0
         Environment: Java 8
            Reporter: James Moore


In our spark applications, we've encountered issues around shading and lambdas. Where the
javac inserted deserialization function ( included below ) will not be updated to reflect
the shaded libraries  The relocation rule is the following 

{code:xml}
                <relocation>
                  <pattern>com.google.protobuf</pattern>
                  <shadedPattern>com.google.protobuf.v3</shadedPattern>
                </relocation>
{code}

But while the majority of the signatures are updated to com.google.protobuf.v3 in the class
file, the following byte code shows the string  where it is not.
{code:java}
(Ljava/lang/Class;Lorg/apache/hadoop/hbase/io/ImmutableBytesWritable;)Lcom/google/protobuf/Message
{code}

I believe this problem affects any shaded library which has a classed passed into a serialized
lambda instance.

{code:java}
  private static java.lang.Object $deserializeLambda$(java.lang.invoke.SerializedLambda);
    Code:
       0: aload_0
       1: invokevirtual #64                 // Method java/lang/invoke/SerializedLambda.getImplMethodName:()Ljava/lang/String;
       4: astore_1
       5: iconst_m1
       6: istore_2
       7: aload_1
       8: invokevirtual #70                 // Method java/lang/String.hashCode:()I
      11: lookupswitch  { // 1
            1182156382: 28
               default: 39
          }
      28: aload_1
      29: ldc           #71                 // String lambda$convert$60ebd0cc$1
      31: invokevirtual #75                 // Method java/lang/String.equals:(Ljava/lang/Object;)Z
      34: ifeq          39
      37: iconst_0
      38: istore_2
      39: iload_2
      40: lookupswitch  { // 1
                     0: 60
               default: 143
          }
      60: aload_0
      61: invokevirtual #78                 // Method java/lang/invoke/SerializedLambda.getImplMethodKind:()I
      64: bipush        6
      66: if_icmpne     143
      69: aload_0
      70: invokevirtual #81                 // Method java/lang/invoke/SerializedLambda.getFunctionalInterfaceClass:()Ljava/lang/String;
      73: ldc           #83                 // String org/apache/spark/api/java/function/Function
      75: invokevirtual #84                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
      78: ifeq          143
      81: aload_0
      82: invokevirtual #87                 // Method java/lang/invoke/SerializedLambda.getFunctionalInterfaceMethodName:()Ljava/lang/String;
      85: ldc           #88                 // String call
      87: invokevirtual #84                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
      90: ifeq          143
      93: aload_0
      94: invokevirtual #91                 // Method java/lang/invoke/SerializedLambda.getFunctionalInterfaceMethodSignature:()Ljava/lang/String;
      97: ldc           #92                 // String (Ljava/lang/Object;)Ljava/lang/Object;
      99: invokevirtual #84                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     102: ifeq          143
     105: aload_0
     106: invokevirtual #95                 // Method java/lang/invoke/SerializedLambda.getImplClass:()Ljava/lang/String;
     109: ldc           #96                 // String StockHubSpotClass
     111: invokevirtual #84                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     114: ifeq          143
     117: aload_0
     118: invokevirtual #99                 // Method java/lang/invoke/SerializedLambda.getImplMethodSignature:()Ljava/lang/String;
     121: ldc           #101                // String (Ljava/lang/Class;Lorg/apache/hadoop/hbase/io/ImmutableBytesWritable;)Lcom/google/protobuf/Message;
     123: invokevirtual #84                 // Method java/lang/Object.equals:(Ljava/lang/Object;)Z
     126: ifeq          143
     129: aload_0
     130: iconst_0
     131: invokevirtual #105                // Method java/lang/invoke/SerializedLambda.getCapturedArg:(I)Ljava/lang/Object;
     134: checkcast     #107                // class java/lang/Class
     137: invokedynamic #46,  0             // InvokeDynamic #0:call:(Ljava/lang/Class;)Lorg/apache/spark/api/java/function/Function;
     142: areturn
     143: new           #109                // class java/lang/IllegalArgumentException
     146: dup
     147: ldc           #111                // String Invalid lambda deserialization
     149: invokespecial #114                // Method java/lang/IllegalArgumentException."<init>":(Ljava/lang/String;)V
     152: athrow
{code}






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