Examples with Method org.apache.bcel.classfile.Method used on opensource projects

Example 56 with Method

use of org.apache.bcel.classfile.Method in project fb-contrib by mebigfatguy.

the class StaticMethodInstanceInvocation method classDefinesStaticMethod.

boolean classDefinesStaticMethod(String popSignature) throws ClassNotFoundException {
    if (Values.DOTTED_JAVA_LANG_OBJECT.equals(popSignature) || Values.DOTTED_JAVA_LANG_CLASS.equals(popSignature)) {
        return false;
    }
    JavaClass cls = Repository.lookupClass(popSignature);
    Method[] methods = cls.getMethods();
    for (Method m : methods) {
        if (m.isStatic() && m.getName().equals(getNameConstantOperand()) && m.getSignature().equals(getSigConstantOperand())) {
            return true;
        }
    }
    return classDefinesStaticMethod(cls.getSuperclassName());
}

Example 57 with Method

use of org.apache.bcel.classfile.Method in project fb-contrib by mebigfatguy.

the class SuspiciousJDKVersionUse method isValid.

private boolean isValid(Map<String, Set<String>> validMethods, String clsName) throws IOException, ClassNotFoundException {
    Set<String> methodInfos = validMethods.get(clsName);
    if (methodInfos == null) {
        ZipEntry ze = jdkZip.getEntry(clsName + ".class");
        if (ze == null) {
            if (isJavaXExternal(clsName)) {
                return true;
            }
            bugReporter.reportBug(new BugInstance(this, BugType.SJVU_SUSPICIOUS_JDK_VERSION_USE.name(), HIGH_PRIORITY).addClass(this).addMethod(this).addSourceLine(this).addClass(clsName));
        } else if (clsName.startsWith("java/")) {
            JavaClass calledClass = null;
            try (InputStream is = new BufferedInputStream(jdkZip.getInputStream(ze))) {
                ClassParser parser = new ClassParser(is, clsName);
                calledClass = parser.parse();
            }
            superNames.put(clsName, calledClass.getSuperclassName().replace('.', '/'));
            Method[] methods = calledClass.getMethods();
            methodInfos = new HashSet<>(methods.length);
            validMethods.put(clsName, methodInfos);
            for (Method m : methods) {
                methodInfos.add(m.getName() + m.getSignature());
            }
        }
    }
    if (methodInfos == null) {
        return true;
    }
    String wantedMethod = getNameConstantOperand() + getSigConstantOperand();
    if (methodInfos.contains(wantedMethod)) {
        return true;
    } else if (Values.SLASHED_JAVA_LANG_OBJECT.equals(clsName)) {
        return false;
    } else {
        return isValid(validMethods, superNames.get(clsName));
    }
}

Example 58 with Method

use of org.apache.bcel.classfile.Method in project fb-contrib by mebigfatguy.

the class SuspiciousJDKVersionUse method findCalledMethod.

@Nullable
private Method findCalledMethod() {
    try {
        JavaClass clss = Repository.lookupClass(getClassConstantOperand());
        Method[] methods = clss.getMethods();
        String calledMethod = getNameConstantOperand();
        String calledSignature = getSigConstantOperand();
        for (Method m : methods) {
            if (m.getName().equals(calledMethod) && m.getSignature().equals(calledSignature)) {
                return m;
            }
        }
        return null;
    } catch (ClassNotFoundException cnfe) {
        bugReporter.reportMissingClass(cnfe);
        return null;
    }
}

Example 59 with Method

use of org.apache.bcel.classfile.Method in project fb-contrib by mebigfatguy.

the class PoorlyDefinedParameter method visitCode.

/**
 * implements the visitor to see if the method has parameters
 *
 * @param obj
 *            the context object of the currently parsed code block
 */
@Override
public void visitCode(Code obj) {
    try {
        Method m = getMethod();
        if (m.isSynthetic()) {
            return;
        }
        if (m.isStatic() || m.isPrivate() || Values.CONSTRUCTOR.equals(m.getName())) {
            parmSigs = SignatureUtils.getParameterSlotAndSignatures(m.isStatic(), m.getSignature());
            if (!parmSigs.isEmpty() && prescreen(m)) {
                state = State.SAW_NOTHING;
                bugs = new HashMap<>();
                downwardBranchTarget = -1;
                super.visitCode(obj);
                for (BugInfo bi : bugs.values()) {
                    bugReporter.reportBug(bi.bug);
                }
            }
        }
    } finally {
        bugs = null;
    }
}

Example 60 with Method

use of org.apache.bcel.classfile.Method in project fb-contrib by mebigfatguy.

the class SuspiciousUninitializedArray method visitCode.

/**
 * overrides the visitor to check to see if the method returns an array, and if so resets the stack for this method.
 *
 * @param obj
 *            the context object for the currently parsed code block
 */
@Override
public void visitCode(Code obj) {
    Method m = getMethod();
    if (m.isSynthetic()) {
        return;
    }
    if (isEnum && "values".equals(m.getName())) {
        return;
    }
    String sig = m.getSignature();
    int sigPos = sig.indexOf(")[");
    if (sigPos < 0) {
        return;
    }
    if (INITIAL_VALUE.equals(m.getName())) {
        try {
            if ((THREAD_LOCAL_CLASS == null) || getClassContext().getJavaClass().instanceOf(THREAD_LOCAL_CLASS)) {
                return;
            }
        } catch (ClassNotFoundException e) {
            bugReporter.reportMissingClass(e);
            return;
        }
    }
    stack.resetForMethodEntry(this);
    returnArraySig = sig.substring(sigPos + 1);
    uninitializedRegs.clear();
    arrayAliases.clear();
    storedUVs.clear();
    super.visitCode(obj);
}