带有方法签名的保护错误
带有方法签名的保护错误
提问于 2011-02-12 19:15:40
当我试图制作我的Android应用程序时，我遇到了一个奇怪的错误。错误是：
[proguard] Optimizing... [proguard]
Unexpected error while evaluating
instruction: [proguard] Class
= [net/domain/packagename/service/ExifEditor]
[proguard] Method =
[setGpsLocation(DDDJ)V] [proguard]
Instruction = [294] aload_3 v3
[proguard] Exception =
[java.lang.IllegalArgumentException]
(Value is not a reference value
[proguard.evaluation.value.UnknownDoubleValue])
[proguard] Unexpected error while
performing partial evaluation:
[proguard] Class =
[net/domain/packagename/service/ExifEditor]
[proguard] Method =
[setGpsLocation(DDDJ)V] [proguard]
Exception =
[java.lang.IllegalArgumentException]
(Value is not a reference value
[proguard.evaluation.value.UnknownDoubleValue])
BUILD FAILED
D:\sdk\google\android-sdk-windows\tools\ant\main_rules.xml:430: java.lang.IllegalArgumentException:
Value is not a reference value
[proguard.evaluation.value.UnknownDoubleValue]
at proguard.evaluation.value.Value.referenceValue(Value.java:97)
at proguard.evaluation.Variables.aload(Variables.java:264)
at proguard.evaluation.Processor.visitVariableInstruction(Processor.java:677)
at proguard.classfile.instruction.VariableInstruction.accept(VariableInstruction.java:306)
at proguard.optimize.evaluation.PartialEvaluator.evaluateSingleInstructionBlock(PartialEvaluator.java:729)
at proguard.optimize.evaluation.PartialEvaluator.evaluateInstructionBlock(PartialEvaluator.java:560)
at proguard.optimize.evaluation.PartialEvaluator.evaluateInstructionBlockAndExceptionHandlers(PartialEvaluator.java:533)
...and so on...方法"setGpsLocation“具有以下签名：
public void setGpsLocation(double longitude, double latitude, double altitude, long gpsTime) throws IOException最后，通过将方法更改为：
public void setGpsLocation(Location location)错误就消失了。虽然这让我通过了它，但我不明白第一个方法签名有什么问题。我的proguard.cfg有-optimizationpasses 2，如果我将这个值增加到3或更多，我就会发现与其他代码区域类似的错误。如果我使用3，会发生什么：
[proguard] Optimizing... [proguard]
Unexpected error while evaluating
instruction: [proguard] Class
= [org/apache/commons/fileupload/util/Streams]
[proguard] Method =
[copy(Ljava/io/InputStream;Ljava/io/OutputStream;Z[B)J]
[proguard] Instruction = [75]
aload_2 v2 [proguard] Exception
= [java.lang.IllegalArgumentException] (Value is not a reference value
[proguard.evaluation.value.UnknownIntegerValue])
[proguard] Unexpected error while
performing partial evaluation:
[proguard] Class =
[org/apache/commons/fileupload/util/Streams]
[proguard] Method =
[copy(Ljava/io/InputStream;Ljava/io/OutputStream;Z[B)J]
[proguard] Exception =
[java.lang.IllegalArgumentException]
(Value is not a reference value
[proguard.evaluation.value.UnknownIntegerValue])我很难找到这个错误意味着什么的信息。
还有其他人见过类似的东西吗？
更新
当更改签名似乎解决了这个问题时，我遇到了运行时崩溃：
I/dalvikvm(30523): Could not find method a.b.a.b.d.b, referenced from method a.b.a.b.d.a
W/dalvikvm(30523): VFY: unable to resolve direct method 440: La/b/a/b/d;.b (Ljava/lang/String;[BII)La/b/a/b/a;
D/dalvikvm(30523): VFY: replacing opcode 0x70 at 0x0039
D/dalvikvm(30523): VFY: dead code 0x003c-0041 in La/b/a/b/d;.a (Ljava/lang/String;[BII)[La/b/a/b/a;
W/dalvikvm(30523): VFY: 'this' arg 'Ljava/lang/Object;' not instance of 'Ljava/io/InputStream;'
W/dalvikvm(30523): VFY: rejecting opcode 0x6e at 0x0045
W/dalvikvm(30523): VFY: rejected La/b/a/a/a/b;.a (La/b/a/b/a/a;La/b/a/a;)La/b/a/a/a/c;
W/dalvikvm(30523): Verifier rejected class La/b/a/a/a/b;
W/dalvikvm(30523): threadid=10: thread exiting with uncaught exception (group=0x400259f8)我开始阅读更多的Proguard手册，通过添加-dontoptimize，构建时错误和运行时崩溃就消失了。某种程度上违背了使用Proguard的目的，不是吗？
-Kevin
回答 2
Stack Overflow用户
回答已采纳
发布于 2011-02-13 12:12:23
该错误表明ProGuard的优化步骤中存在一个错误。您应该确保使用的是最新版本(ProGuard 4.5.1或4.6beta3)。如果问题仍然存在，您应该在ProGuard bug跟踪器中提交一个bug报告，并提供一个允许重现问题的小示例项目。
Stack Overflow用户
发布于 2011-02-12 19:47:16
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/4980047
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