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Workarounds for null dereference bugs #10

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12 changes: 12 additions & 0 deletions src/clegoues/genprog4java/java/JavaStatement.java
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Original file line number Diff line number Diff line change
Expand Up @@ -334,6 +334,9 @@ public Map<Expression, List<Expression>> getExtendableConditionalExpressions() {
if(extendableExpressions == null) {
extendableExpressions = new HashMap<Expression, List<Expression>>();
final MethodDeclaration md = (MethodDeclaration) ASTUtils.getEnclosingMethod(this.getASTNode());
if (md == null) {
return extendableExpressions;
}
final String methodName = md.getName().getIdentifier();
final List<Expression> replacements = JavaSemanticInfo.getConditionalExtensionExpressions(methodName, md);

Expand Down Expand Up @@ -389,6 +392,9 @@ public Map<Expression,List<Expression>> getReplacableMethodParameters() {
methodParamReplacements = new HashMap<Expression,List<Expression>>();

final MethodDeclaration md = (MethodDeclaration) ASTUtils.getEnclosingMethod(this.getASTNode());
if (md == null) {
return methodParamReplacements;
}
final String methodName = md.getName().getIdentifier();
final Set<String> namesInScopeHere = JavaSemanticInfo.inScopeAt(this);

Expand Down Expand Up @@ -492,6 +498,9 @@ public Map<ASTNode, List<List<ASTNode>>> getExtendableParameterMethods() {
extendableParameterMethods = new HashMap<ASTNode,List<List<ASTNode>>>();

final MethodDeclaration md = (MethodDeclaration) ASTUtils.getEnclosingMethod(this.getASTNode());
if (md == null) {
return extendableParameterMethods;
}
final String methodName = md.getName().getIdentifier();
final Set<String> namesInScopeHere = JavaSemanticInfo.inScopeAt(this);

Expand Down Expand Up @@ -599,6 +608,9 @@ public List<ASTNode> getIndexedCollectionObjects() {
public boolean visit(MethodInvocation node) {
Expression methodCall = node.getExpression();
SimpleName methodName = node.getName();
if(methodCall == null || methodName == null) {
return true;
}
switch(methodName.getIdentifier()) {
case "removeRange":
case "subList":
Expand Down
8 changes: 7 additions & 1 deletion src/clegoues/genprog4java/mut/edits/java/MethodReplacer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.IMethodBinding;
import org.eclipse.jdt.core.dom.MethodInvocation;
import org.eclipse.jdt.core.dom.SuperMethodInvocation;
import org.eclipse.jdt.core.dom.SimpleName;
import org.eclipse.jdt.core.dom.rewrite.ASTRewrite;

Expand Down Expand Up @@ -34,7 +35,12 @@ public void edit(final ASTRewrite rewriter) {
SimpleName newMethodName = rewriter.getAST().newSimpleName(replaceWith.getName());
newNode.setName(newMethodName);

List<ASTNode> paramNodes = ((MethodInvocation) toReplace).arguments();
List<ASTNode> paramNodes;
if (toReplace instanceof SuperMethodInvocation) {
paramNodes = ((SuperMethodInvocation) toReplace).arguments();
} else {
paramNodes = ((MethodInvocation) toReplace).arguments();
}
for(ASTNode param : paramNodes) {
ASTNode newParam = rewriter.createCopyTarget(param);
newNode.arguments().add(newParam);
Expand Down
2 changes: 1 addition & 1 deletion src/clegoues/genprog4java/mut/edits/java/ObjectInitializer.java
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Expand Up @@ -65,7 +65,7 @@ public boolean visit(MethodInvocation node) {
SimpleName asExp = (SimpleName) arg;
ITypeBinding binding = asExp.resolveTypeBinding();

if(binding.isClass()) {
if(binding != null && binding.isClass()) {
SimpleName newVarName = myAST.newSimpleName(((SimpleName) arg).getIdentifier());
Assignment newAssignment = myAST.newAssignment();
newAssignment.setLeftHandSide(newVarName);
Expand Down
2 changes: 1 addition & 1 deletion src/clegoues/genprog4java/mut/edits/java/RangeCheckOperation.java
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Expand Up @@ -83,7 +83,7 @@ public void edit(final ASTRewrite rewriter) {
upperBoundCheck.setOperator(Operator.LESS);

SimpleName uqualifier = rewriter.getAST().newSimpleName(
((ArrayAccess) array).getArray().toString());
((ArrayAccess) array).getArray().toString().split("\\[")[0]);
SimpleName uname = rewriter.getAST().newSimpleName(
"length");
upperBoundCheck.setRightOperand(rewriter.getAST()
Expand Down