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https://issues.apache.org/jira/browse/BCEL-285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gary D. Gregory resolved BCEL-285.
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Resolution: Cannot Reproduce
> "ClassFormatException: Invalid signature" thrown on generics
> ------------------------------------------------------------
>
> Key: BCEL-285
> URL: https://issues.apache.org/jira/browse/BCEL-285
> Project: Commons BCEL
> Issue Type: Bug
> Components: Parser
> Affects Versions: 6.0
> Environment: java 8, macOS 10.12.2
> Reporter: Tom Brus
> Priority: Major
>
> The following stripped down example throws an Exception in {{BCEL}}:
> {code:title=Bar.java|borderStyle=solid}
> import java.io.IOException;
> import java.util.stream.Stream;
> import org.apache.bcel.classfile.ClassParser;
> public class Main {
> public static void main(String[] args) throws IOException {
> ClassParser parser = new
> ClassParser(Main.class.getResourceAsStream("Main.class"), "Main.class");
> parser.parse().getMethods()[2].getCode().toString(); /* <- EXCEPTION
> thrown */
>
> ((Stream<? extends Object>)null).peek(x -> {}); /* <- problem spot */
> }
> }
> {code}
> The exception is:
> {code}
> Exception in thread "main" org.apache.bcel.classfile.ClassFormatException:
> Invalid signature: `!+Ljava/lang/Object;'
> at org.apache.bcel.classfile.Utility.signatureToString(Utility.java:930)
> at
> org.apache.bcel.classfile.LocalVariable.toStringShared(LocalVariable.java:187)
> at
> org.apache.bcel.classfile.LocalVariableTypeTable.toString(LocalVariableTypeTable.java:121)
> at java.lang.String.valueOf(String.java:2994)
> at java.lang.StringBuilder.append(StringBuilder.java:131)
> at org.apache.bcel.classfile.Code.toString(Code.java:316)
> at org.apache.bcel.classfile.Code.toString(Code.java:328)
> at Main.main(Main.java:9)
> {code}
> This problem only occurs in eclipse (I am using NEON.2) and does not occur in
> Intellij (I am using 2016.3.2). This probably indicates that {{ecj}} and
> {{javac}} differ in their class code generator.
> Since our project uses {{sonar:findbugs}} which uses {{BCEL}} this is a major
> problem for us.
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