Program: 34472
Project: 34472
Buggy source:
@Override public void annotate(GLSLFunctionCallExpression expr,AnnotationHolder holder){
  if (!expr.isConstructor())   return;
  final GLSLType constructorType=expr.getType();
  final GLSLType[] parameters=expr.getParameterTypes();
  if (!(constructorType instanceof GLSLArrayType)) {
    final GLSLFunctionType[] constructors=constructorType.getConstructors();
    if (constructors.length == 0)     return;
    boolean found=false;
    for (    GLSLFunctionType constructor : constructors) {
      if (constructor.getParameterCompatibilityLevel(parameters) != GLSLTypeCompatibilityLevel.INCOMPATIBLE) {
        found=true;
        break;
      }
    }
    if (!found) {
      StringBuilder sb=new StringBuilder();
      sb.append("String_Node_Str").append(constructorType.getTypename()).append('(');
      if (parameters.length != 0) {
        final String PARAMETER_SEPARATOR="String_Node_Str";
        for (        GLSLType parameter : parameters) {
          sb.append(parameter.getTypename()).append(PARAMETER_SEPARATOR);
        }
        sb.setLength(sb.length() - PARAMETER_SEPARATOR.length());
      }
      sb.append("String_Node_Str");
      final String baseMessage=sb.toString();
      sb.setLength(0);
      sb.append("String_Node_Str");
      sb.append(baseMessage);
      sb.append("String_Node_Str");
      if (constructorType instanceof GLSLVectorType || constructorType instanceof GLSLMatrixType) {
        sb.append(GLSLVectorType.countVectorOrMatrixConstructorElements(parameters));
        sb.append("String_Node_Str");
      }
      sb.append("String_Node_Str");
      for (      GLSLFunctionType constructor : constructors) {
        sb.append(constructor.getTypename()).append("String_Node_Str");
      }
      sb.append("String_Node_Str");
      holder.createAnnotation(HighlightSeverity.ERROR,expr.getTextRange(),baseMessage,sb.toString());
    }
  }
}

Fixed version (ground truth):
@Override public void annotate(GLSLFunctionCallExpression expr,AnnotationHolder holder){
  if (!expr.isConstructor())   return;
  final GLSLType constructorType=expr.getType();
  if (constructorType instanceof GLSLArrayType)   return;
  final GLSLType[] parameters=expr.getParameterTypes();
  for (  GLSLType paramType : parameters) {
    if (!paramType.isValidType()) {
      return;
    }
  }
  final GLSLFunctionType[] constructors=constructorType.getConstructors();
  if (constructors.length == 0)   return;
  boolean found=false;
  for (  GLSLFunctionType constructor : constructors) {
    if (constructor.getParameterCompatibilityLevel(parameters) != GLSLTypeCompatibilityLevel.INCOMPATIBLE) {
      found=true;
      break;
    }
  }
  if (!found) {
    StringBuilder sb=new StringBuilder();
    sb.append("String_Node_Str").append(constructorType.getTypename()).append('(');
    if (parameters.length != 0) {
      final String PARAMETER_SEPARATOR="String_Node_Str";
      for (      GLSLType parameter : parameters) {
        sb.append(parameter.getTypename()).append(PARAMETER_SEPARATOR);
      }
      sb.setLength(sb.length() - PARAMETER_SEPARATOR.length());
    }
    sb.append("String_Node_Str");
    final String baseMessage=sb.toString();
    sb.setLength(0);
    sb.append("String_Node_Str");
    sb.append(baseMessage);
    sb.append("String_Node_Str");
    if (constructorType instanceof GLSLVectorType || constructorType instanceof GLSLMatrixType) {
      sb.append(GLSLVectorType.countVectorOrMatrixConstructorElements(parameters));
      sb.append("String_Node_Str");
    }
    sb.append("String_Node_Str");
    for (    GLSLFunctionType constructor : constructors) {
      sb.append(constructor.getTypename()).append("String_Node_Str");
    }
    sb.append("String_Node_Str");
    holder.createAnnotation(HighlightSeverity.ERROR,expr.getTextRange(),baseMessage,sb.toString());
  }
}