Tom Brus created BCEL-285:
-----------------------------
Summary: "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
The following stripped down example throws en 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 (NEON.2) and does not occur in Intellij
(2016.3.2). This probably indicates that {{ecj}} and {{javac}}.
Since we are using {{sonar:findbugs}} which uses {{BCEL}} this is a major
problem for us.
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